Congratulations! 🥳🥳🥳Stay safe, don't drive like an idiot. Remember, it's harder to get your license, than to lose it. Look out for your fellow drivers, even if they don't look out for you. 💪
I passed my motorcycle test in 1966 and my car test in 1969, and I’ve just discovered your channel. I find your videos very interesting and valuable in refreshing my knowledge and updating my driving skills. Thank you for your clear and informative explanation of the issues you cover!
It doesn't ever happen, because the fuel loop (from tank to engine and back) is full of air when the car is turned off at the petrol station. This air goes up the filler neck when you start her up again. Maybe it could happen if you left the car running when you filled up, and then you immediatly set off down hill or something
I have had this happen on a gas car after only 2 times I filled to the brim. The second time I did it, I had an error regarding de Evap system and I had to replace the carbon box, which made the error go away. What he's saying in the video is 100 % valid.
I work on vehicles for a living, and I am really glad you put out videos like this for the general public. It makes my job of explaining what is going on with the client's car a lot easier if they have at least some idea of what is going on. I saw many Rovers with flooded charcoal canisters when I used to work at a dealership. A lot of times, though, it was the purge valve or the DMTL pump causing the issue.
ive been over filling every gas tank in every car ive ever owned including several newer model 2020+, ive over filled by 7L-12L every time until i physically see fuel in the fuel neck, ill even rock my car back and forth to squeeze in a extra 1-2L. Never had an issue. HOWEVER, when ever i do over fill I make sure to drive at least 100km or more before I park the car. that way there is not gas sitting on the air valve that can enter the PCV when the car is parked.
@@michaelxcxUnfortunately, both of our experiences are anecdotal. You have only your experience with your vehicle and I only have the vehicles that came into the shop with the issue. The point of his video was that it is a possibility and it is a possibility that I have seen happen more than once on separate vehicles. Most owner's manuals (most because I have not read them all) state not to overfill the tank. Over filling the tank does not guarantee it will flood the charcoal canister, but it creates a scenario that it becomes possible.
@@jeffreysanborn1005 if you read my post to the end you would understand. the issue is not over filling the tank, the issue is over filling it then parking it overfilled. the pressure builds and floods the charcoal canister, if you drive right away, at least 100km, the charcoal canister most likely will not get filled.
You’ve been like a second instructor to me and yesterday I passed with ZERO faults and a lot of that credit goes to you so thank you! Absolutely integral part of my driving journey!
@@saednoor5766 if you have your own car DON’T use it leading up to your test unless that’s the car you’re using on the test. Mirrors mirrors mirrors, just keep telling yourself that but don’t be silly and robotic about it just know that if you’re changing direction/ approaching a change of speed just always makes sure you look (even if you feel it’s not needed). Don’t be afraid to have a chat with your test invigilator during the process as this will put your nerves at ease MASSIVELY and also helps them warm to you and understand you. Last but not least, take your time. If you’re approaching a busy junction/roundabout just slowly approach it and only go when you’re absolutely sure. Better the odd minor for hesitation over getting a serious for something silly! Trust yourself and know it’s nowhere near as nerve racking as you think it’s going to be :)
Once I filled my garage with petrol (I thought steeping my car in it overnight would be a nice efficient way of refuelling), but it ended up seeping through the wall and flooding my kitchen, so I had petrol-flavoured breakfast cereal for the next six months ...
Passed my test yesterday, only 2 minors! Used your videos on bits I didn't understand and you won't know how much i appreciated your videos. Thanks so much!
Only the beginning , congrats, now, drive few months, maybe 1 year, do Advancing driving, later anti skid. and of course do a circuit like "Skills days" and never stop to learn more..
Explains a lot of issues I was having with my old car. Fortunately/ unfortunately some idiot wote it off by reversing into it at speed. No one was in the car at the time but I have now been left with a megané that I hate for the last 7 months. Tomorrow I pick up my first ever brand new car and having this advice will save it from being damaged by something no one ever told me before
I think you just solved the problem I had with the Volvo I got rid of today. Cost me two fuel pumps, many labor hours and too much frustration and stress. Nothing worked, now it seems it was the evap all along. Can’t say for sure that it wasn’t me that caused it. I’ve learned my lesson (the Volvo had more issues so I’m still glad to be rid of it
Besides, topping off doesn't make much sense. It is not like the extra drops of fuel are free, you are paying for them too. They are so small that you might expend more time pumping them in than burning them out. Well, not precisely, but you get the point.
@@stpeter7432 Argh! Every time I try to put exactly £20 I slow down and it just goes in increments of 2p right until £19.99. I know my fate is sealed however light I squeeze.
Wanted to say I passed my practical two days ago with only 1 minor and this channel has been a great source of help from the start of my lessons all the way to my test massive thanks.
I'll second that! Always ran a diesel until very recently and have been guilty of topping, not least because when you live on mainland Europe, as I do, you often cross country borders and fuel prices can vary greatly, so you want to profit as much as possible from the lower prices. Still, hopefully I haven't ruined the EVAP yet and will look out in future.
Even though I am not much of a car person, the complexity of engineering behind cars never ceases to amaze me. Such complex mechanisms for everything. 😮
Skoda Fabia, owned 16 years from new, 165,000 miles. I have always 'overfilled' it to the brim. Even pressed the release button inside the filler neck to get another 4 litres of diesel in. No issues.
Just leaving a comment to say I just passed my test today here in Ireland, your videos have been such a massive help!! I’ll definitely still be watching regardless 😉❤
Thank you for your incredibly helpful and detailed videos, Richard! They helped me - a bit of an anxious driver - to pass my test first time with 2 minors! Just got my first car and very much looking forward to getting out on the roads again.
I have a diesel, I stop before it gets into the filler pipe. This is not to stop damaging anything, however if you overfill diesel, it may come out when you corner, its a hazard on the road as its very slippy, especially in wet weather. Bikes and motorbikes are vulnerable enough without slipping and sliding on your spilt diesel on corners, forecourts and junctions.
Isn’t the filler cup designed to stop that from happening? Just a question, not a challenge - if I don’t overfill and I tighten the filler cup, am I not being equally responsible?
Moral. The older the car you drive, the less 'gizmos' to go wrong. The longer a car is kept in use the more environmentally friendly it is, the resorce to build it being spread over a longer time. NEVER but a new, or anywhere new vehicle.
I really like that my Diesel car doesn't need an evap system. Normally, I have a 45 l tank in my Škoda Fabia. With topping up you can get a little over 60 l in it. Done that especially in a time I made like 900-1000 km per week (2 times 400 km plus some extra) for months to not need to fuel up twice a week for little over half a tank. Normally a tank lasts around 800 km in winter and 900 km in summer and this gave me the missing ~10l/200 km to get back and forth to my internship. But like you said: never do this in a gas-car.
Can't remember the last time I filled the tank to the top at today's prices and what is the point of carrying all that extra weight around unless going on a tour of Scotland for example, unlike EVs you can easily pop in a garage and top up. Keep up the good work as I have been driving over 40 years but still can learn something new from your channel to help keep my driving skills up to date. Thanks
The weight is difference between a half and a full tank is relatively insignificant, petrol weighs less than water after all. Petrol station visits are the most significant source of benzene exposure for non smokers, so personally I'd rather limit my visits by filling it full each time.
As soon as it cuts off I leave it at that, sorry about the confusion about the double white lines, you’re absolutely right, they’re not double white lines because the lines aren’t next to each other and one isn’t broken and one isn’t solid or both aren’t solid, my bad mate. 🙃
I was religiously doing this for around 4 months now since bought my first car . Car doesn't smell of petrol yet so i might been lucky so far , after watched this video i'll go untill it's on minimum and then fill up half a tank...good job it popped up in notifications ! Keep up great work , much appreciated 👍🤝
I’ve got a simple classic petrol driven car. None of that emissions crap, just a simple neck that goes into the tank. As the engine is a Rover V8, I like to fill it as much as possible and tbh, the garage never smells of petrol when I put Old Bertha away.
I have 3 in a barn, one is restored back to life other two not yet, but i am fed up with them because of the too much hassle and do not look at them, i do not miss them.
How very smart and yet it explains very little… for example what would happen if you do fill up to the top and next you travel, for quite few miles? Well then your fuel tank would no longer be filled to the top, would it now? Then again if you fill to the top and do a couple of miles and park your car for a week this whole video is for you. For me it’s not my case sooooo, keep filling it up?! Nice video, it sure can help a lot of people.
Very informative, didn't know about this charcoal filter and risks of overfilling.Very well explained and look forward to more videos, which I like as easy to follow and understand 👍.
And yes and no. Most people have been done that at least once or twice and nothing really happened. First click thought it’s perfectly fine, saves time, money and no risk for evap.
Sometimes the first click of the pump is even worse than being 0.5 to 1L short of full. With my car, sometimes the first click is a good 10-15L short of full, but that is pretty rare and I have noticed it only happens at Shell garages for some reason. I do know with my car though, that when the fuel needle is just above the red part of the gauge, I can put 30L in.
@@anniemitchell338 When the dispenser pump is surrounded by liquid (e.g. petrol), there's a little stopper valve which also fills with the liquid, which pushes shut and turns off the flow. In theory, this happens only when the tank is pretty close to full. In practice, it varies quite a bit depending on the angle of the nozzle, the flow rate of the petrol, the shape of the tank and how clean the valve tube is, along with possibly a number of other factors. Unless there's some reason you absolutely need your tank as full as you possibly can, though, just fill to the click and organise your journey to allow you to refuel again later if needed.
@@anniemitchell338 it's a mechanical valve in the pump that disengages the autofill lever and shuts off fuel flow when the tank level reaches the backflow.
This ☝️would love an in depth video from Richard I’ve been filling my car up with Shell vpower after switching from supermarket fuel and after a few weeks have noticed better MPG
@@contactjd1. Grinding gears is the least of concerns for fuel economy. 2. Grinding gears happens when shifting to fast or without clutch, both unlikely to be done by learners.
@@cianmooredid that increased in mpg translate into actual savings? Over here in Germany the premium Fuel is 40% more expensive, than the "cheap" E10 while only providing a fuel usage reduction of arroud 1.5%, according to ADAC, our version of the AAA. E10, or higher if available, even reduce CO2 emissions slighty, so there is really no reason to use premium fuels in a daily driver if it isnt a high performamce sport car that can't run on the cheap ones.
I've been driving since 1983 and going to fuel up is a pet hate of mine so when the need arises, I ALWAYS brim it to the max every time, I can't stand putting in 10 or 20 quid at a time....... and in 41 years, I've never had a problem .
On the subject of “stop at first click“ - I always back off the pump trigger as soon as I hear the fuel bubbling up the filler pipe. You can hear the resonant note of the bubbling changing as it gets higher and higher. By slowing down the flow of fuel to a trickle, the bubbles subside back down the pipe, and I am fairly confident that I get a consistent fill level, when the pure liquid fuel hits the back pressure sensing tube on the tip of the fuel nozzle.
I track my petrol receipts, my bike has a 13 litre tank. I get 135mpg if I run it lean in 5th, down to 90 running pure urban. Trip counters do have a use! :)
One of my cars is from 1988. None of this gubbins. Filler neck, tank and pump. Never smelled petrol from the tank, filler (unless it's open) or inside the cabin. Less is more. 😊
Spot on. There was a one way valve to let air in so you don’t pull a vacuums. No air left the tank. My old polo from 1985 didn’t even have a valve in the filler neck so you could literally see the petrol in the top of the tube. He’s right about corrupting the evap chamber with fuel in a modern car.
Oh wow! I had never heard of an EVAP system! Why aren't we being taught about this (except your video) and/or why aren't the car makers putting in some measures so that the EVAP system is better protected? I used to fill up my car as much as possible when fuel prices went down, so that it would last me as long as possible. I don't drive an ICE car anymore but if we eventually return to ICE cars, I will know better now, thanks to you. Much appreciate your explanation!
Didnt know this so probably a good idea that I stop topping off my tank. Only started doing it because my PHEV came with such a small fuel tank I got a bit fed up with only having 300miles of range!
0:56. Thats not supposed to happen if the garage is attached to the house. If fumes go from garage into the house then that means the garage does have poor ventilation and ventilation needs improvement with more air vents, maybe even ducting and a small electric fan to pull the fumes directly to outside. In some cases also sealing possible air leaking holes between home and garage, if theres a door directly from garage into house then add seals to the door.
so you are becoming our favourite mechanic now not our driving instructor? XD haha funny JK mate, but well done man you explain everything nicely, thanks
The user manual of my first car (Fiat 500 MY2007) stated that you should top up twice after the first click of the gun to make sure that you filled the tank completely, but not any more than that. That's where my habit comes from: I've always stopped at the third click. Just checked my current car's manual, it only says "The fuel tank is full when the nozzle clicks. Don't overfill." I honestly don't think the risk is very high, but I'll probably stop at the first click from now on 🤷🏻♂️
I don't think 2007 cars HAD to have EVAP systems in them, they were optional. Modern ones MUST have them fitted. EDIT: EVAP systems have been around since 1998, but as I said back then they weren't legally required.
@@supergeekjay actually I just checked and that text is still there on Fiat 500 MY2024's user manual as well, so maybe it's just designed like that 🤷🏻♂️
From a 2014 Leon manual: "If the automatic filler nozzle is operated correctly, it will switch itself off as soon as the fuel tank is “full”. Do not try to put in more fuel after the nozzle cuts out, as this will fill the expansion chamber in the fuel tank".
I used to fill up - when I had a company fuel card! Now I usually put around £40 quid in. Sometimes, if fuel is a good price, or if I have a long journey to do I’ll brim the tank - the one thing I don’t like doing is running on fumes - not good for the fuel system or lambda sensor (I had one fail once - not pleasant).
Most of my journeys are around 250 miles done on a regular basis, I always top up before I depart. This decreases the amount of condensation that may occur in the tank and thus eliminates any fuel issues. My vehicle is a diesel and whilst this video concerns petrol vehicles I would still do the same if it were petrol, a full tank is only a full tank when it’s filled so once you pull away it obviously decreases. I certainly wouldn’t fill it up and leave the vehicle standing for days.
I always only top off at the start of long drive, if I am close to parking or not going somewhere hundred miles away, I'd never fill it up. Another main reason I avoided it is where I live, it is attendance only, so I have no control to how full the staff put in. I had times I got that nasty smell at home, so I did some research and stopped doing it after I know why it isn't good to top it up. Thank you for this video I can share with others.
Clear explanation, as usual, thank you. I've been wondering for few years what's charcoal canister condition in my car, as sometimes the fuel tank makes bubbling noises. Seems to be fine as it refills easly and has no errors on the dash.
I was topping off my car at fuel stations to hit the minimum vend for loyalty points that some companies offer! Thanks for the advice, won't be doing that again 😅
BP is quite a good loyalty scheme. Quite regularly they have 3x points or an extra 100 points after a 40L fill up. I find its good fuel and the rewards are better than Clubcard or Texaco
@@madmike987655Yeah but it's not worth if it's more expensive. It's a nice bonus if you pass it and you don't have cheaper places you go by, it's rare that the BP next to me is cheaper than the Morrisons or Tesco
I only did this once, simply to get the quantity up to a round number. That's when I discovered the difference between click off and petrol all over the place was less than half a litre!
Those wondering if this applies to motorcycles: Yes and no. Bike tanks have breather ports like a cars EVAP system, and newer bikes might actually have full EVAP, but older bikes will just vent to atmosphere. You can fill it right the way up (and I have done that), but note that on a hot day, if you lean the bike then the fuel will boil on the hot metal. This happens regardless, but with so much fuel and so little air space left, don't be surprised if your tank starts hissing at you.
The petrol pump displays how many litres you have put in, so you could take note of that reading each time you fill up if you want to calculate fuel economy accurately over time.
I can assure you that this is an issue on newer cars. I had to have an EVAP sensor replaced on a 2 year old Santa Fe because I'd topped off the tank too much. Luckily it was replaced under warranty. Now I stop at the first click
True. I topped off all my life and all my past cars were fine but I too will stop on first click now as modern cars are built to fail when the wind changes direction.
Wise advice. Years ago, when running diesel cars, I used to top-up fill them. Back then, quite a few pumps tended to deliver quite frothy fuel, and it would settle down several seconds after delivery, so one could top it up a bit more then. Later on, I had one with automatic closure of the refuelling pipe - no screw cap on that one, so topping up could not be used; that was a Honda made in 2013. Since then I use petrol, with screw on caps, and just guess how much it’s going to need, then slow down towards the time when the pump stops. The other thing the modern one I normally use does is to grab my card number for £99, then work out the real values, add another transaction and pays back the £99. I think it does the sums when the pump handle is put back on the machine, though, not just when it automatically shuts off (that’s an ASDA one). All that said, most modern cars have a built in system for calculating fuel values. I know the figures you get are more optimistic than working it out by the volume bought - but all meters have built in accuracy factors. It’s often the case that delivery pumps have Standard Temperature Adjustment (STA) as well, so what you get can depend on the weather if you measure the volume.
Petrol fumes also contain the dangerous carcinogen benzene. Another possible symptom of a bad charcoal canister is hearing a hiss when you open the petrol cap. There should be no pressure difference between the fuel system and the atmosphere. If there is, then the charcoal canister may be blocked. Very useful video, thanks.
Years ago my mother had a new fuel tank fitted to her Ford Anglia the guys had not fully secured the rubber connection piece which linked tank to filler pipe. Once near the top the fuel started gushing into the boot. That took some sorting out.
Please make a video on first time buyer. What things should be looked for and how to do the basic maintenance. My friend who bought a car recently having issue with battery and so on. The car stopped few times after turning off. The dealer is not responding. Also she is spending lots of money on technician. Please talk about the document checking and legal procedures. I would like to know as much as possible. Many thanks
That's the first time I'm hearing about this potential problem and I am going to check, whether my car is affected by this, because my active carbon filter is inside the engine bay at roughly the same height as the filler hole. I used to top of directly before long trips. There is a a vent button for the surge tank inside the filler hole and if I push it with the nozzle I am able to put about 10 additional liters in my tank. With this method I was able to put 63 liters in my 55 liter tank, which is a massive range increase.
2:00 Technically, activated carbon adsorbs (not absorbs) the hydrocarbons from the air. The hydrocarbons stick to (adsorb on) the surface of the carbon, they are not absorbed like water in a sponge.
A nice explantion there Richard 😊 Its been month since I passed my test, but I havent had my first ride yet so your videos are brilliant at keeping me entertained 🤗 I wouldnt mind becoming an instructor myself, such a shame you've got to be 21 to apply 😢. See you again next Monday 😂
I was going on a long journey once. And calculated I needed another 2 litres in my tank . So I taped an empty coke bottle with the bottom cut off and upside down so the diesel would drain into the tank to the outside of my car and filled it to the top. I kept an eye on it in my wing mirror when it was empty I stuck it in the boot. Got all the to magaluff with out refuelling . Job done.
I tend to fill it till the click, then wait 5 seconds until the second click and then thats about right for the tank. Its an old rover MGZR so its always a bit weird with how you put fuel in.
It has been a while since I was a mechanic but your carbon canister was plumbed in via the vent and had nothing to do with where you filled the car up. Unless something has changed that I am unaware of.
Helpful video! I bought a second hand Golf GTE PHEV and it wouldn't take fuel. Needed to change the filter. Guess it's more likely to be a problem on this car as the engine can go long periods with not being on at all or not running long enough to get hot enough.
Any other reason you might think could cause this problem? I just got my activated charcoal canister changed at 75000km in a seat leon 2019, I never topped off passed the first click.
I always top off my diesel. I have a 70 litre tank and with a fuel consumption of 5.4 litre per 100 km (52.3 MPG-imp) I get a range of ~1300 km/813 miles. I love having great range as it gives comfort and peace of mind, and I don't see myself owning an EV until their range at least doubles from today's standard.
I have topped off all of my vehicles this way with no issues. The 2012 focus will drain out before it fills up the filler neck. The 2012 Lancer will fill to the neck and you can watch it slowly go down as the car is running. My 95 Thunderbird the same, never ever ever was this ever a problem. The only time I had a few related vent issue was a dried out carbon canister hose. I keep hearing this and it's a non-issue even with all six of my vehicles over the years.
It also makes no sense from a cost perspective because of the added weight of the vehicle. I fill up to 3/4 and no more. That extra quarter of a tank in my car is 12L (or 9kg) of extra weight every month. Doesn't sound like much but that adds up over the year
No car system is affected by topping off. The gas fill is designed to not allow "too much" gas, it will will flow to the ground. Secondly car EVAP systems are designed to account for full tank conditions, its not going to just break parts. That is absolutely wrong.
@@KindredBrujah You save 30kg in mass, but you have to visit the petrol station more often. Unless you go there all the time anyway or get it delivered to you, it costs fuel to go out of the way to the petrol station, and usually more than you'd save by driving with 30 fewer kgs
Well the extra litre that I put in with the second click I usually burn off till I get home. And besides, you can click twice. The first time you get all the foam from the fuel that triggers the safety. If you wait a bit for all that to settle and then top up once, you'll get the most beneficial increase. And it doesn't hurt anything. I've been doing it for years, my dad's been doing it on different cars for over 25 years and not a single time we had any sort of issues. But we're normal - one top up and you go. If you fill up till the fuel's pouring out the filler hole, you're waaay overfilled and possibly hurting the evap system.
Decided to comment here that I passed my practical test today with only one minor! These videos have been a huge help, thank you very much!
Congratulations! 🥳🥳🥳Stay safe, don't drive like an idiot. Remember, it's harder to get your license, than to lose it. Look out for your fellow drivers, even if they don't look out for you. 💪
Bravo!
Congrats !!
Well done!! Stay safe, and try not to curb your wheels in the maccies drive through😂
🥳
Only been driving 52 years, still ride motorbikes, and still learning thanks to guys like you.
Gotta be coming up to your 70'th birthday soon right?
52 years ago... This wasn't a thing
Ditto - old car/bike: not a problem.
Well, beginnings are hard, keep it up!
If my shoes don't smell of diesel when I fill up, I haven't put enough in.
Your aim must be rubbish. Hope I don't have to stand next to you at the urinal
in a gas car
You are American
@@Benoit-PierreAmericans don’t really have diesel cars…
@@ZonexG They mostly ride trucks dont they?
I passed my motorcycle test in 1966 and my car test in 1969, and I’ve just discovered your channel. I find your videos very interesting and valuable in refreshing my knowledge and updating my driving skills. Thank you for your clear and informative explanation of the issues you cover!
main dealer master tech here, still waiting for this scenario to play out, for 44yrs this has never happened for me, hope i see one before i retire...
It doesn't ever happen, because the fuel loop (from tank to engine and back) is full of air when the car is turned off at the petrol station. This air goes up the filler neck when you start her up again. Maybe it could happen if you left the car running when you filled up, and then you immediatly set off down hill or something
@@cannaroe1213 I heard people in america leave their car running when topping their fuel in which i found bizzare and crazy.
@@khznator its actually perfectly safe but as a Brit myself I do find it very weird :P
I have had this happen on a gas car after only 2 times I filled to the brim. The second time I did it, I had an error regarding de Evap system and I had to replace the carbon box, which made the error go away. What he's saying in the video is 100 % valid.
@@alecsdinu never happens in european cars, you from america ?
I work on vehicles for a living, and I am really glad you put out videos like this for the general public. It makes my job of explaining what is going on with the client's car a lot easier if they have at least some idea of what is going on.
I saw many Rovers with flooded charcoal canisters when I used to work at a dealership. A lot of times, though, it was the purge valve or the DMTL pump causing the issue.
ive been over filling every gas tank in every car ive ever owned including several newer model 2020+, ive over filled by 7L-12L every time until i physically see fuel in the fuel neck, ill even rock my car back and forth to squeeze in a extra 1-2L. Never had an issue.
HOWEVER,
when ever i do over fill I make sure to drive at least 100km or more before I park the car. that way there is not gas sitting on the air valve that can enter the PCV when the car is parked.
Were you doing the repairs on warranty?
@@ABC-so9ob No. JLR would not pay the warranty claim as it is driver induced.
@@michaelxcxUnfortunately, both of our experiences are anecdotal. You have only your experience with your vehicle and I only have the vehicles that came into the shop with the issue.
The point of his video was that it is a possibility and it is a possibility that I have seen happen more than once on separate vehicles.
Most owner's manuals (most because I have not read them all) state not to overfill the tank.
Over filling the tank does not guarantee it will flood the charcoal canister, but it creates a scenario that it becomes possible.
@@jeffreysanborn1005 if you read my post to the end you would understand. the issue is not over filling the tank, the issue is over filling it then parking it overfilled. the pressure builds and floods the charcoal canister, if you drive right away, at least 100km, the charcoal canister most likely will not get filled.
You’ve been like a second instructor to me and yesterday I passed with ZERO faults and a lot of that credit goes to you so thank you! Absolutely integral part of my driving journey!
congrats. any tips you can give
Woo-hoo! 🎉Congrats!
@@saednoor5766 if you have your own car DON’T use it leading up to your test unless that’s the car you’re using on the test.
Mirrors mirrors mirrors, just keep telling yourself that but don’t be silly and robotic about it just know that if you’re changing direction/ approaching a change of speed just always makes sure you look (even if you feel it’s not needed).
Don’t be afraid to have a chat with your test invigilator during the process as this will put your nerves at ease MASSIVELY and also helps them warm to you and understand you.
Last but not least, take your time. If you’re approaching a busy junction/roundabout just slowly approach it and only go when you’re absolutely sure. Better the odd minor for hesitation over getting a serious for something silly!
Trust yourself and know it’s nowhere near as nerve racking as you think it’s going to be :)
Excellent video. Been driving nearly 50 years but never heard this before. Thank you.
Have you wondered WHY have you never heard of this in your fifty years experience? ;-)
Because he is chatting out his backside
@@jaroslavcharvat5171 Because cars 50 years ago didn't have this system...
@@geoffmerrittscore! Darn those 80s where we lost all the HP exchanging them for active carbon filters.
Because its bullsh1t
Been driving for over 50 years and continue to learn! I've always done this but will never again!!!
I once put so much petrol in my car that I couldn't get in!
Petrol goes in the petrol tank, not inside the car via the window.😂
😜
😅😅
Once I filled my garage with petrol (I thought steeping my car in it overnight would be a nice efficient way of refuelling), but it ended up seeping through the wall and flooding my kitchen, so I had petrol-flavoured breakfast cereal for the next six months ...
@@colinjava8447 Oh, so that's why they screamed with me on the gas station.....
They scared me so much, the cigar almost fell out of my mouth.
Passed my test yesterday, only 2 minors! Used your videos on bits I didn't understand and you won't know how much i appreciated your videos. Thanks so much!
Woo-hoo! 🎉 Congrats!
Only the beginning , congrats, now, drive few months, maybe 1 year, do Advancing driving, later anti skid. and of course do a circuit like "Skills days" and never stop to learn more..
@DGQ1Q2 cheers mate
Explains a lot of issues I was having with my old car. Fortunately/ unfortunately some idiot wote it off by reversing into it at speed. No one was in the car at the time but I have now been left with a megané that I hate for the last 7 months. Tomorrow I pick up my first ever brand new car and having this advice will save it from being damaged by something no one ever told me before
Did you got something from insurance when someone destroyed your car
I think you just solved the problem I had with the Volvo I got rid of today. Cost me two fuel pumps, many labor hours and too much frustration and stress. Nothing worked, now it seems it was the evap all along. Can’t say for sure that it wasn’t me that caused it. I’ve learned my lesson (the Volvo had more issues so I’m still glad to be rid of it
Besides, topping off doesn't make much sense. It is not like the extra drops of fuel are free, you are paying for them too. They are so small that you might expend more time pumping them in than burning them out. Well, not precisely, but you get the point.
You can filling the evap system and soaking the charcoal
@@leexgxwhats that got to do with his comment ?
Fair point - but who else has to get to an exact number of pounds? I feel I've failed if it clicks over to the next penny!
@@stpeter7432 Argh!
Every time I try to put exactly £20 I slow down and it just goes in increments of 2p right until £19.99.
I know my fate is sealed however light I squeeze.
Yeah, but imagine if I had to wait for half an hour just to fill up my gas tank.
Wanted to say I passed my practical two days ago with only 1 minor and this channel has been a great source of help from the start of my lessons all the way to my test massive thanks.
Woo-hoo! 🎉 Congrats!
@@bencodykirk Thank you.
I managed to pass today with 6 minors 🔥 this channel has been so so helpful in supporting my learning you are a legend!
Thank you, Richard. This is VERY helpful. I haven’t heard of this before, it’ll definitely save a potential bill!
Ditto
Same here
I'll second that! Always ran a diesel until very recently and have been guilty of topping, not least because when you live on mainland Europe, as I do, you often cross country borders and fuel prices can vary greatly, so you want to profit as much as possible from the lower prices. Still, hopefully I haven't ruined the EVAP yet and will look out in future.
That's why I smell petrol inside my old car. Well it will do until I've saved for my brand new car.
I passed my driving test today. I just want to say, thank you immensely for all your videos. It has helped me Massively. Thank you❤️
I never knew that. Thank you for highlighting it. I buy a set amount each time, so the tank is never completely filled up.
Even though I am not much of a car person, the complexity of engineering behind cars never ceases to amaze me. Such complex mechanisms for everything. 😮
Not surprising that EVs are making inroads. ICEs are over complex IMO. Part of it is regulation but part is keeping servicing with dealers.
Skoda Fabia, owned 16 years from new, 165,000 miles. I have always 'overfilled' it to the brim. Even pressed the release button inside the filler neck to get another 4 litres of diesel in. No issues.
Just leaving a comment to say I just passed my test today here in Ireland, your videos have been such a massive help!! I’ll definitely still be watching regardless 😉❤
Thank you for your incredibly helpful and detailed videos, Richard! They helped me - a bit of an anxious driver - to pass my test first time with 2 minors! Just got my first car and very much looking forward to getting out on the roads again.
Thanks, been driving 25 years and I didn't know this. I only have diesels at the moment but have done this in the past with petrol cars.
I have a diesel, I stop before it gets into the filler pipe. This is not to stop damaging anything, however if you overfill diesel, it may come out when you corner, its a hazard on the road as its very slippy, especially in wet weather. Bikes and motorbikes are vulnerable enough without slipping and sliding on your spilt diesel on corners, forecourts and junctions.
Isn’t the filler cup designed to stop that from happening? Just a question, not a challenge - if I don’t overfill and I tighten the filler cup, am I not being equally responsible?
Good video ! You hit on why it’s pointless to test avg fuel economy at the pump for short journeys quite well !
Moral. The older the car you drive, the less 'gizmos' to go wrong. The longer a car is kept in use the more environmentally friendly it is, the resorce to build it being spread over a longer time. NEVER but a new, or anywhere new vehicle.
I just put £20 in every time. This way it only ever costs me £20 and I am insulated against the increase in fuel prices. 🎉
4Head thinking :D
That’ll get you about a mile, these days. 😂
You're missing a trick, just put a tenner in instead and halve your fuel costs.
What ! How are you insulted (insulated) from increase in fuel prices? When the price goes up you get less fuel for your £20.
@@eddthirty4065 How are people so bad as spotting an obvious joke. I'm autistic and even I realised it's a joke.
Been driving for over 50 years and always fill up to the brim, never had a problem!
Same.
The difference is 100miles for me if not brimming so I brim!!
great info, didn't realize that after driving for 26 years and considered myself a petrol head
I really like that my Diesel car doesn't need an evap system.
Normally, I have a 45 l tank in my Škoda Fabia. With topping up you can get a little over 60 l in it. Done that especially in a time I made like 900-1000 km per week (2 times 400 km plus some extra) for months to not need to fuel up twice a week for little over half a tank. Normally a tank lasts around 800 km in winter and 900 km in summer and this gave me the missing ~10l/200 km to get back and forth to my internship.
But like you said: never do this in a gas-car.
Do you think I'll be finding to continue this on my diesel car. Such as a 2.0 to 3.0 diesel bmw
Can't remember the last time I filled the tank to the top at today's prices and what is the point of carrying all that extra weight around unless going on a tour of Scotland for example, unlike EVs you can easily pop in a garage and top up. Keep up the good work as I have been driving over 40 years but still can learn something new from your channel to help keep my driving skills up to date. Thanks
The weight is difference between a half and a full tank is relatively insignificant, petrol weighs less than water after all.
Petrol station visits are the most significant source of benzene exposure for non smokers, so personally I'd rather limit my visits by filling it full each time.
I just passed thanks to your clips and shorts and videos on roundabouts. Just got a petrol car and thank you for this video
I did not even know topping off was a thing. I guess I just trusted that the fuel pump nozzle works as it does for a reason.
As soon as it cuts off I leave it at that, sorry about the confusion about the double white lines, you’re absolutely right, they’re not double white lines because the lines aren’t next to each other and one isn’t broken and one isn’t solid or both aren’t solid, my bad mate. 🙃
I was religiously doing this for around 4 months now since bought my first car . Car doesn't smell of petrol yet so i might been lucky so far , after watched this video i'll go untill it's on minimum and then fill up half a tank...good job it popped up in notifications !
Keep up great work , much appreciated 👍🤝
I’ve got a simple classic petrol driven car. None of that emissions crap, just a simple neck that goes into the tank. As the engine is a Rover V8, I like to fill it as much as possible and tbh, the garage never smells of petrol when I put Old Bertha away.
My '74 Beetle never complains, gotta love old cars
I had one drive past me yesterday, it was very stinky, taking me back 40 years when my mum had one. I don't miss them.
I have 3 in a barn, one is restored back to life other two not yet, but i am fed up with them because of the too much hassle and do not look at them, i do not miss them.
daily drove a 72 super for a solid year until enough things broke that I couldn't anymore, working on fixing it back up now. good fun.
How very smart and yet it explains very little… for example what would happen if you do fill up to the top and next you travel, for quite few miles? Well then your fuel tank would no longer be filled to the top, would it now?
Then again if you fill to the top and do a couple of miles and park your car for a week this whole video is for you.
For me it’s not my case sooooo, keep filling it up?!
Nice video, it sure can help a lot of people.
Very informative, didn't know about this charcoal filter and risks of overfilling.Very well explained and look forward to more videos, which I like as easy to follow and understand 👍.
And yes and no.
Most people have been done that at least once or twice and nothing really happened.
First click thought it’s perfectly fine, saves time, money and no risk for evap.
watching this guys videos gives you 30 year+ experience without driving for that long
Sometimes the first click of the pump is even worse than being 0.5 to 1L short of full. With my car, sometimes the first click is a good 10-15L short of full, but that is pretty rare and I have noticed it only happens at Shell garages for some reason. I do know with my car though, that when the fuel needle is just above the red part of the gauge, I can put 30L in.
What do the clicks mean?
@@anniemitchell338 The pump clicks off when it thinks the fuel tank is full. It's correct most of the time, but sometimes it can be way off.
@@anniemitchell338 When the dispenser pump is surrounded by liquid (e.g. petrol), there's a little stopper valve which also fills with the liquid, which pushes shut and turns off the flow. In theory, this happens only when the tank is pretty close to full. In practice, it varies quite a bit depending on the angle of the nozzle, the flow rate of the petrol, the shape of the tank and how clean the valve tube is, along with possibly a number of other factors.
Unless there's some reason you absolutely need your tank as full as you possibly can, though, just fill to the click and organise your journey to allow you to refuel again later if needed.
@@anniemitchell338 it's a mechanical valve in the pump that disengages the autofill lever and shuts off fuel flow when the tank level reaches the backflow.
It can click off much earlier if the hose is bent too much. Make sure you always pull enough hose length and that it sits loosely.
Could you do a video comparing the fuel economy when using E5, E10, premium, supermarket fuel, etc with this car?
This ☝️would love an in depth video from Richard I’ve been filling my car up with Shell vpower after switching from supermarket fuel and after a few weeks have noticed better MPG
Good idea but mpg will be variable with learners grinding the gears
@@contactjd1. Grinding gears is the least of concerns for fuel economy.
2. Grinding gears happens when shifting to fast or without clutch, both unlikely to be done by learners.
Ashley Neal has done a test: th-cam.com/video/5u0pTVmz9q0/w-d-xo.htmlsi=5m4YJARIUC-MA-Q6
@@cianmooredid that increased in mpg translate into actual savings? Over here in Germany the premium Fuel is 40% more expensive, than the "cheap" E10 while only providing a fuel usage reduction of arroud 1.5%, according to ADAC, our version of the AAA. E10, or higher if available, even reduce CO2 emissions slighty, so there is really no reason to use premium fuels in a daily driver if it isnt a high performamce sport car that can't run on the cheap ones.
I've been driving since 1983 and going to fuel up is a pet hate of mine so when the need arises, I ALWAYS brim it to the max every time, I can't stand putting in 10 or 20 quid at a time....... and in 41 years, I've never had a problem .
I went into this video thinking it would be a load of bollocks. Pleasantly surprised. Cheers
This was informative, definitely won’t top off again.
On the subject of “stop at first click“ - I always back off the pump trigger as soon as I hear the fuel bubbling up the filler pipe. You can hear the resonant note of the bubbling changing as it gets higher and higher. By slowing down the flow of fuel to a trickle, the bubbles subside back down the pipe, and I am fairly confident that I get a consistent fill level, when the pure liquid fuel hits the back pressure sensing tube on the tip of the fuel nozzle.
I track my petrol receipts, my bike has a 13 litre tank. I get 135mpg if I run it lean in 5th, down to 90 running pure urban. Trip counters do have a use! :)
Bloody hell thats awesome! What bike do you have? 125?
Then WHY don’t all the car manufacturers have a small sign under fuel flap saying ‘warning: don’t overfill’ - then people probably wouldn’t do it.
The irony of this video is that the people who need to see this video the most will never actually care enough to watch it.
One of my cars is from 1988. None of this gubbins. Filler neck, tank and pump. Never smelled petrol from the tank, filler (unless it's open) or inside the cabin. Less is more. 😊
Spot on. There was a one way valve to let air in so you don’t pull a vacuums. No air left the tank. My old polo from 1985 didn’t even have a valve in the filler neck so you could literally see the petrol in the top of the tube. He’s right about corrupting the evap chamber with fuel in a modern car.
Oh wow! I had never heard of an EVAP system! Why aren't we being taught about this (except your video) and/or why aren't the car makers putting in some measures so that the EVAP system is better protected?
I used to fill up my car as much as possible when fuel prices went down, so that it would last me as long as possible. I don't drive an ICE car anymore but if we eventually return to ICE cars, I will know better now, thanks to you. Much appreciate your explanation!
Didnt know this so probably a good idea that I stop topping off my tank. Only started doing it because my PHEV came with such a small fuel tank I got a bit fed up with only having 300miles of range!
0:56. Thats not supposed to happen if the garage is attached to the house. If fumes go from garage into the house then that means the garage does have poor ventilation and ventilation needs improvement with more air vents, maybe even ducting and a small electric fan to pull the fumes directly to outside. In some cases also sealing possible air leaking holes between home and garage, if theres a door directly from garage into house then add seals to the door.
so you are becoming our favourite mechanic now not our driving instructor? XD haha funny
JK mate, but well done man you explain everything nicely, thanks
The user manual of my first car (Fiat 500 MY2007) stated that you should top up twice after the first click of the gun to make sure that you filled the tank completely, but not any more than that. That's where my habit comes from: I've always stopped at the third click. Just checked my current car's manual, it only says "The fuel tank is full when the nozzle clicks. Don't overfill." I honestly don't think the risk is very high, but I'll probably stop at the first click from now on 🤷🏻♂️
I don't think 2007 cars HAD to have EVAP systems in them, they were optional. Modern ones MUST have them fitted. EDIT: EVAP systems have been around since 1998, but as I said back then they weren't legally required.
@@supergeekjay actually I just checked and that text is still there on Fiat 500 MY2024's user manual as well, so maybe it's just designed like that 🤷🏻♂️
From a 2014 Leon manual: "If the automatic filler nozzle is operated correctly, it will switch itself off as soon as the fuel tank is “full”. Do not try to put in more fuel after the nozzle cuts out, as this will fill
the expansion chamber in the fuel tank".
I used to fill up - when I had a company fuel card! Now I usually put around £40 quid in. Sometimes, if fuel is a good price, or if I have a long journey to do I’ll brim the tank - the one thing I don’t like doing is running on fumes - not good for the fuel system or lambda sensor (I had one fail once - not pleasant).
Most of my journeys are around 250 miles done on a regular basis, I always top up before I depart. This decreases the amount of condensation that may occur in the tank and thus eliminates any fuel issues. My vehicle is a diesel and whilst this video concerns petrol vehicles I would still do the same if it were petrol, a full tank is only a full tank when it’s filled so once you pull away it obviously decreases. I certainly wouldn’t fill it up and leave the vehicle standing for days.
I always only top off at the start of long drive, if I am close to parking or not going somewhere hundred miles away, I'd never fill it up. Another main reason I avoided it is where I live, it is attendance only, so I have no control to how full the staff put in.
I had times I got that nasty smell at home, so I did some research and stopped doing it after I know why it isn't good to top it up. Thank you for this video I can share with others.
Clear explanation, as usual, thank you. I've been wondering for few years what's charcoal canister condition in my car, as sometimes the fuel tank makes bubbling noises. Seems to be fine as it refills easly and has no errors on the dash.
I was topping off my car at fuel stations to hit the minimum vend for loyalty points that some companies offer! Thanks for the advice, won't be doing that again 😅
BP is quite a good loyalty scheme. Quite regularly they have 3x points or an extra 100 points after a 40L fill up. I find its good fuel and the rewards are better than Clubcard or Texaco
@@madmike987655Yeah but it's not worth if it's more expensive. It's a nice bonus if you pass it and you don't have cheaper places you go by, it's rare that the BP next to me is cheaper than the Morrisons or Tesco
you could always use a jerrycan for that small extra.
Yeah naa this really doesn't happen. You can still round that number up without blowing up ur car lol
Loyalty points work great, it forces people to buy stuff in their shops when they would normally go to Asda or Tescos where it’s all much cheaper 😂🤣
I’ve done this the last couple of times I’ve filled up and I’ve not normally in the past, I’ll stop now after I’ve seen this. Thanks. 👍
I don't 'top off' but still found this explanation fascinating.
I can confirm! (With the repair bill part) I filled up my car, 2 clicks like I always do and the very same day it got written off 😂
I learned something new about filling cars, thx.
Best only put in half a tank each time for daily driving. Saves carrying all that weight around and you get better efficiency.
I only did this once, simply to get the quantity up to a round number. That's when I discovered the difference between click off and petrol all over the place was less than half a litre!
Those wondering if this applies to motorcycles: Yes and no.
Bike tanks have breather ports like a cars EVAP system, and newer bikes might actually have full EVAP, but older bikes will just vent to atmosphere.
You can fill it right the way up (and I have done that), but note that on a hot day, if you lean the bike then the fuel will boil on the hot metal.
This happens regardless, but with so much fuel and so little air space left, don't be surprised if your tank starts hissing at you.
Thanks!
Thank you for your generosity!
The petrol pump displays how many litres you have put in, so you could take note of that reading each time you fill up if you want to calculate fuel economy accurately over time.
I can assure you that this is an issue on newer cars. I had to have an EVAP sensor replaced on a 2 year old Santa Fe because I'd topped off the tank too much. Luckily it was replaced under warranty. Now I stop at the first click
True. I topped off all my life and all my past cars were fine but I too will stop on first click now as modern cars are built to fail when the wind changes direction.
I never knew you could fill past the first click, I always thought that was the limit.
Well, according to this video... it should be the limit! 😂
Wise advice. Years ago, when running diesel cars, I used to top-up fill them. Back then, quite a few pumps tended to deliver quite frothy fuel, and it would settle down several seconds after delivery, so one could top it up a bit more then. Later on, I had one with automatic closure of the refuelling pipe - no screw cap on that one, so topping up could not be used; that was a Honda made in 2013.
Since then I use petrol, with screw on caps, and just guess how much it’s going to need, then slow down towards the time when the pump stops. The other thing the modern one I normally use does is to grab my card number for £99, then work out the real values, add another transaction and pays back the £99. I think it does the sums when the pump handle is put back on the machine, though, not just when it automatically shuts off (that’s an ASDA one).
All that said, most modern cars have a built in system for calculating fuel values. I know the figures you get are more optimistic than working it out by the volume bought - but all meters have built in accuracy factors. It’s often the case that delivery pumps have Standard Temperature Adjustment (STA) as well, so what you get can depend on the weather if you measure the volume.
Hi, could you do a video on premium fuels like Shell V Power etc? Interested to know your thoughts. Cheers
The active carbon filter, was the first to get off my car !! Unnessesary crap 😄
Petrol fumes also contain the dangerous carcinogen benzene. Another possible symptom of a bad charcoal canister is hearing a hiss when you open the petrol cap. There should be no pressure difference between the fuel system and the atmosphere. If there is, then the charcoal canister may be blocked. Very useful video, thanks.
Years ago my mother had a new fuel tank fitted to her Ford Anglia the guys had not fully secured the rubber connection piece which linked tank to filler pipe. Once near the top the fuel started gushing into the boot. That took some sorting out.
Please make a video on first time buyer. What things should be looked for and how to do the basic maintenance. My friend who bought a car recently having issue with battery and so on. The car stopped few times after turning off. The dealer is not responding. Also she is spending lots of money on technician. Please talk about the document checking and legal procedures. I would like to know as much as possible. Many thanks
That's the first time I'm hearing about this potential problem and I am going to check, whether my car is affected by this, because my active carbon filter is inside the engine bay at roughly the same height as the filler hole. I used to top of directly before long trips. There is a a vent button for the surge tank inside the filler hole and if I push it with the nozzle I am able to put about 10 additional liters in my tank. With this method I was able to put 63 liters in my 55 liter tank, which is a massive range increase.
I like topping to get to round numbers. my petrol cost exactly £50.00 today!
Haha - I do that. Except for two things... a) it's in $ not £... and b) it's usually about $250 since I have a 130 litre tank 😂
2:00 Technically, activated carbon adsorbs (not absorbs) the hydrocarbons from the air. The hydrocarbons stick to (adsorb on) the surface of the carbon, they are not absorbed like water in a sponge.
Thanks for this useful information I have not heard of this potential problem I won't be topping off again😇
Thanks for this information!
Who knew!!!
Not me.
There’s always a reason,
A nice explantion there Richard 😊
Its been month since I passed my test, but I havent had my first ride yet so your videos are brilliant at keeping me entertained 🤗
I wouldnt mind becoming an instructor myself, such a shame you've got to be 21 to apply 😢. See you again next Monday 😂
I was going on a long journey once. And calculated I needed another 2 litres in my tank . So I taped an empty coke bottle with the bottom cut off and upside down so the diesel would drain into the tank to the outside of my car and filled it to the top. I kept an eye on it in my wing mirror when it was empty I stuck it in the boot. Got all the to magaluff with out refuelling . Job done.
from what year did they start doing this?
I tend to fill it till the click, then wait 5 seconds until the second click and then thats about right for the tank. Its an old rover MGZR so its always a bit weird with how you put fuel in.
It has been a while since I was a mechanic but your carbon canister was plumbed in via the vent and had nothing to do with where you filled the car up. Unless something has changed that I am unaware of.
Helpful video!
I bought a second hand Golf GTE PHEV and it wouldn't take fuel. Needed to change the filter. Guess it's more likely to be a problem on this car as the engine can go long periods with not being on at all or not running long enough to get hot enough.
Any other reason you might think could cause this problem? I just got my activated charcoal canister changed at 75000km in a seat leon 2019, I never topped off passed the first click.
I always top off my diesel. I have a 70 litre tank and with a fuel consumption of 5.4 litre per 100 km (52.3 MPG-imp) I get a range of ~1300 km/813 miles. I love having great range as it gives comfort and peace of mind, and I don't see myself owning an EV until their range at least doubles from today's standard.
I had an EVAP issue with my old car. Replaced charcoal/carbon canister, £15 off ebay and 30 seconds to replace all sorted
I have topped off all of my vehicles this way with no issues. The 2012 focus will drain out before it fills up the filler neck. The 2012 Lancer will fill to the neck and you can watch it slowly go down as the car is running. My 95 Thunderbird the same, never ever ever was this ever a problem. The only time I had a few related vent issue was a dried out carbon canister hose. I keep hearing this and it's a non-issue even with all six of my vehicles over the years.
I’ve ‘topped off’ every car I’ve had, every time I’ve filled them up for 50 years and I’ve NEVER had a single issue!
It also makes no sense from a cost perspective because of the added weight of the vehicle. I fill up to 3/4 and no more. That extra quarter of a tank in my car is 12L (or 9kg) of extra weight every month. Doesn't sound like much but that adds up over the year
It also adds up driving to the petrol station though more often, unless you happen to directly pass it regularly
Yeah weight it what a lot of people forget to think about.
1L = 1Kg so your 12L = 12Kg not 9Kg, therefore saving more weight than you thought, enough for a giant pack of donuts for the journey 👍
@@sideshowbobsfanclub1L = 1kg for water. Not petrol
I fill it to top click. I go from to F to E. I registrate the traveled distance. If it gets under 500km, i get it checked out
No car system is affected by topping off. The gas fill is designed to not allow "too much" gas, it will will flow to the ground. Secondly car EVAP systems are designed to account for full tank conditions, its not going to just break parts. That is absolutely wrong.
Exactly 💯, I don't what this guy is going on about half the time
you forgot this is the guy that compared two completely different cars and attributed the differences in economy to the engine size.
I fill half a tank. Saving 30kg in weight 😂
Me too. That's the problem with EVs - even when your range is down to 10 miles you're still carrying half a tonne of batteries.
@@Costa_del_Artlepool How is that a "problem" exactly?
@@LAndrewsChannel Cars are more efficient the lighter they are. Is that a serious question?
@@KindredBrujah You save 30kg in mass, but you have to visit the petrol station more often. Unless you go there all the time anyway or get it delivered to you, it costs fuel to go out of the way to the petrol station, and usually more than you'd save by driving with 30 fewer kgs
@@Grafytedepends where you are going/where you live. plenty of folks drive past a station anyway.
Well the extra litre that I put in with the second click I usually burn off till I get home. And besides, you can click twice. The first time you get all the foam from the fuel that triggers the safety. If you wait a bit for all that to settle and then top up once, you'll get the most beneficial increase. And it doesn't hurt anything. I've been doing it for years, my dad's been doing it on different cars for over 25 years and not a single time we had any sort of issues. But we're normal - one top up and you go. If you fill up till the fuel's pouring out the filler hole, you're waaay overfilled and possibly hurting the evap system.