Just to clear something up - this video is specifically talking about newer vehicles that calculate maintenance intervals. This would be all vehicles that when you check your maintenance section, it gives a percentage instead of a distance reading. A couple sub-points to this: 1) I’m not saying you should drive an older car to 10k miles. Just because oil is better doesn’t mean that older engines will last 10k miles on newer oil. 2) Manufacturers recommending specific intervals (for example, Porsche with their 10k intervals) are not bad either. That interval has been tested and validated using the same processes listed out here. (That Porsche typically also carries 8-10 quarts of oil, and the interval is much lower on their GT cars [GT3, etc.]) 3) Use the OEM parts and recommended oil. This is how the engine was validated. It’s not that other oil is bad, it’s that we don’t know for sure because that oil brand/type hasn’t been tested for millions of miles
I would be VERY interested in an even more in depth video discussion on this topic. Expanding on any topics that were glossed over. I would greatly appreciate another even more thorough video. I would honestly watch a 1 hour video on this topic if you could make it
Very insightful breakdown. I get so tired of listening to old anecdotes about oil and services intervals. I appreciate hard science and evidence based conclusion. Well done, sir
I work in the field of analyzing broken engines and cars for parts suppliers and it seems there are two schools of thought. One is the (in general US / north American) thought that 5.000 miles is the best change interval, otherwise the engine will fail prematurely and car companies just want you to buy a new car. Oddly enough, people agree to this, coming from folks who just want to sell oil. Not saying they're wrong, by the way. The second school of thought is that oil quality has improved so much, that you can stick to the manufacturer prescribed interval. I live in Europe, where 20.000 to 30.000 km intervals are common (12.500 to 18.700 miles). I see damaged engines on a weekly, sometimes daily basis. Every single time the engine has extreme bearing wear and the oil was changed at the forementioned intervals. Oil manufacturers here are changing their stance on long-life intervals, they lower the interval to 15.000 km and recommend changing the type of oil with higher mileage. After the first 100.000 km (62.000 miles) some oil manufacturers recommend a different viscosity and oil with different additive packages. What I found interesting in your video was the conclusion that oil still 'functions' in terms of cleaning the engine, after several thousands of miles, and that clean oil doesn't do this better. Also good that you mentioned the oil capacity - even the high profile oil experts on here tend to miss that point. Anyway, keep up the good work.
Great comment. I think there is a miss on the manufacturers side for not changing oil type based on mileage/interval. There may need to be more research into that, because currently there’s not a lot of testing from OEMs on high mileage oil
I think the one of the biggest issues is most people do not understand that how they drive the vehicle and the environmental conditions they drive it in categorizes them in the severe operating conditions section of maintenance intervals. These intervals are typically a lot shorter than what the normal operating condition service interval recommendation is. Because of this people go far to long between service intervals ( oil, transmission fluid, diff fluids est . ) and this is where they run into problems. A lot of people aren't aware there are two different service interval requirements based on driving habits and environmental conditions. ( Example: Ford f150 manual recommends 12,000km - 16,000km for normal operation. for severe operation conditions those intervals go down to 5,000km - 12,000km intervals )
yeah i work as a line tech for a major manufacturer and i definitely do not trust the oem intervals. i replace every 3000 miles and my car runs like a top. 10000 mile intervals are insane.
I run a turbo. 3k to 4k miles max I don't care about engineers telling me i wait and listen to manufacture intervals. My car runs hard and I check oil every time I fuel up.
as a car guy and a lube tech at a tire shop, hondas are unkillable even when run on 0 oil and with rocks in the motor, but realistically you should change every 3-5k miles depending on how you drive. if you whip it like it's a car you bought just cause it's a beater, 3k, if you drive like a grandma, 4-5k miles. (this comment was left before i watched the entire video to be totally honest, i personally change my daily drive truck at 5k cause it's a nissan frontier with the 2.5l 4 cylinder so i know it can take the abuse, i also don't tow or carry additional weight usually, but when i do i switch to 3k miles oil changes, it's really just a 'if you know you drive like a goober, change it sooner' , type of thing)
Absolutely amazing video tons of great information. The technical side of cars is the best part. Glad to see you’re sharing this info even if the audience is a bunch of monkeys.
I would be happy to follow the manufacturer's recommendation and change my oil every 10-20K km if the manufacturer would meet me half way and give me a 10+ year 100K+ km warranty on the engine, but they won't. I have a Honda where there is a silly Maintenance Minder system which tells me when it's time to change oil and other things. However Honda does not tell me what factors are used and exactly how these calculations are done. And am I considered severe service or not? Apparently it's a secret and as the car owner I can't be trusted with this information. The fact that some companies have produced sealed transmissions for which you are told you never have to change the fluid is reason in itself to not believe anything car companies say. And let's not get into the lack of a transmission dipstick which prevents you from checking on the condition and level of the tranny fluid.
Interesting, but it contradicts what oil experts who actually do tests in the laboratory claim, the experience of mechanics and the experience of people who take oil for analysis. I change the oil on every car after 10,000 km (6,200 miles) and so far not a single engine has failed. Changing the oil costs me approx. 50€ (54USD) - 44€ oil and 6€ filter, so in 10 years I will lose 1000€ on an earlier change, since I change the oil 3 times a year instead of 1 change. I'm not an expert, but I've been "studying" oils for years and I'm interested in the results of various tests and the opinions of experts - and I consider the 10,000km interval to be the maximum run when the oil still fulfills its function. Among other things, car manufacturers try to reduce TCO (Total cost of ownership) as much as possible, and the manufacturer would lose sales by changing the oil more frequently. Just look at other oils in the car - in particular, my car has a large "lifetime fluid - do not change" inscription on the transmission from the manufacturer - but the car manufacturer is not the manufacturer of the transmission. The transmission is manufactured by the German ZF - and it states directly in the manual for my transmission that the oil MUST be changed. But the manufacturer decided that the transmission would survive the warranty period (which happened) and therefore did not order an oil change to make the car more attractive to buyers. The same thing happens with engine oils - and it's a proven fact many times over.
Do you have any studies you can point to that indicate or prove that extended oil intervals, while using OE parts, decreases engine reliability or longevity?
@@drive.science I wrote a longer comment, but TH-cam decided to delete it for unknown reasons. But in short - yes, I have evidence and oil analyzes that confirm what I write.
I personally do my oil changes every 5-7500 miles. This is with full synthetic only with occasional engine flush. I would never trust 10 thousand miles because quite frankly, Ive seen the damage it will cause first hand. Some cars doing 10k, yea. Most cars.. No, 5k is good. Some cars burn too much oil to even make it 5k, some cars oil is pitch black by 3k (Looking at your Hyundai/KIA) or has bad engine leaks. Also I wouldnt trust modern car manufacturers to honor warranty if your engine prematurely fails and you did the oil changes when it said too. 10 thousand genuinely seems too long.
oil filter bypass valves usually opens at 10 to 20 PSI,meaning it only filters at idle or slightly over ile speed(every 1000RPM=10 PSI of oil pressure generally) so 90% of the time the bypass valve is open and oil filter does nothing
Oil and filter are cheap engines, are not at 3.000 miles change the oil. Original owner 01 Ford Excursion v10 365.000 miles oil changed every 3.000 miles. Don't trust manufacturers recomendations remember they want you to buy a new car because of planned obsolescence they know how long the vehicles going to last with there recomendations.
@@drive.science you know people like this dont. You cant talk some folks out of a 3k interval. You'd figure all the tech it takes to make a TH-cam Comment, that folks would understand that everything has advanced, including oil. But it still escapes folks.
Just to clear something up - this video is specifically talking about newer vehicles that calculate maintenance intervals. This would be all vehicles that when you check your maintenance section, it gives a percentage instead of a distance reading. A couple sub-points to this:
1) I’m not saying you should drive an older car to 10k miles. Just because oil is better doesn’t mean that older engines will last 10k miles on newer oil.
2) Manufacturers recommending specific intervals (for example, Porsche with their 10k intervals) are not bad either. That interval has been tested and validated using the same processes listed out here. (That Porsche typically also carries 8-10 quarts of oil, and the interval is much lower on their GT cars [GT3, etc.])
3) Use the OEM parts and recommended oil. This is how the engine was validated. It’s not that other oil is bad, it’s that we don’t know for sure because that oil brand/type hasn’t been tested for millions of miles
I would be VERY interested in an even more in depth video discussion on this topic. Expanding on any topics that were glossed over. I would greatly appreciate another even more thorough video. I would honestly watch a 1 hour video on this topic if you could make it
Very insightful breakdown. I get so tired of listening to old anecdotes about oil and services intervals. I appreciate hard science and evidence based conclusion. Well done, sir
My past vehicle had 10k mile oil changes and I did that for almost 13 years and had no problems. Great video btw
I work in the field of analyzing broken engines and cars for parts suppliers and it seems there are two schools of thought. One is the (in general US / north American) thought that 5.000 miles is the best change interval, otherwise the engine will fail prematurely and car companies just want you to buy a new car. Oddly enough, people agree to this, coming from folks who just want to sell oil. Not saying they're wrong, by the way. The second school of thought is that oil quality has improved so much, that you can stick to the manufacturer prescribed interval. I live in Europe, where 20.000 to 30.000 km intervals are common (12.500 to 18.700 miles). I see damaged engines on a weekly, sometimes daily basis. Every single time the engine has extreme bearing wear and the oil was changed at the forementioned intervals. Oil manufacturers here are changing their stance on long-life intervals, they lower the interval to 15.000 km and recommend changing the type of oil with higher mileage. After the first 100.000 km (62.000 miles) some oil manufacturers recommend a different viscosity and oil with different additive packages.
What I found interesting in your video was the conclusion that oil still 'functions' in terms of cleaning the engine, after several thousands of miles, and that clean oil doesn't do this better. Also good that you mentioned the oil capacity - even the high profile oil experts on here tend to miss that point. Anyway, keep up the good work.
Great comment. I think there is a miss on the manufacturers side for not changing oil type based on mileage/interval. There may need to be more research into that, because currently there’s not a lot of testing from OEMs on high mileage oil
I think the one of the biggest issues is most people do not understand that how they drive the vehicle and the environmental conditions they drive it in categorizes them in the severe operating conditions section of maintenance intervals. These intervals are typically a lot shorter than what the normal operating condition service interval recommendation is. Because of this people go far to long between service intervals ( oil, transmission fluid, diff fluids est . ) and this is where they run into problems. A lot of people aren't aware there are two different service interval requirements based on driving habits and environmental conditions. ( Example: Ford f150 manual recommends 12,000km - 16,000km for normal operation. for severe operation conditions those intervals go down to 5,000km - 12,000km intervals )
yeah i work as a line tech for a major manufacturer and i definitely do not trust the oem intervals. i replace every 3000 miles and my car runs like a top. 10000 mile intervals are insane.
I run a turbo. 3k to 4k miles max I don't care about engineers telling me i wait and listen to manufacture intervals. My car runs hard and I check oil every time I fuel up.
as a car guy and a lube tech at a tire shop, hondas are unkillable even when run on 0 oil and with rocks in the motor, but realistically you should change every 3-5k miles depending on how you drive. if you whip it like it's a car you bought just cause it's a beater, 3k, if you drive like a grandma, 4-5k miles. (this comment was left before i watched the entire video to be totally honest, i personally change my daily drive truck at 5k cause it's a nissan frontier with the 2.5l 4 cylinder so i know it can take the abuse, i also don't tow or carry additional weight usually, but when i do i switch to 3k miles oil changes, it's really just a 'if you know you drive like a goober, change it sooner' , type of thing)
Absolutely amazing video tons of great information. The technical side of cars is the best part. Glad to see you’re sharing this info even if the audience is a bunch of monkeys.
I would be happy to follow the manufacturer's recommendation and change my oil every 10-20K km if the manufacturer would meet me half way and give me a 10+ year 100K+ km warranty on the engine, but they won't.
I have a Honda where there is a silly Maintenance Minder system which tells me when it's time to change oil and other things. However Honda does not tell me what factors are used and exactly how these calculations are done. And am I considered severe service or not? Apparently it's a secret and as the car owner I can't be trusted with this information.
The fact that some companies have produced sealed transmissions for which you are told you never have to change the fluid is reason in itself to not believe anything car companies say. And let's not get into the lack of a transmission dipstick which prevents you from checking on the condition and level of the tranny fluid.
You look just like that kid with glasses from polar express with this shirt kek
Interesting, but it contradicts what oil experts who actually do tests in the laboratory claim, the experience of mechanics and the experience of people who take oil for analysis.
I change the oil on every car after 10,000 km (6,200 miles) and so far not a single engine has failed. Changing the oil costs me approx. 50€ (54USD) - 44€ oil and 6€ filter, so in 10 years I will lose 1000€ on an earlier change, since I change the oil 3 times a year instead of 1 change.
I'm not an expert, but I've been "studying" oils for years and I'm interested in the results of various tests and the opinions of experts - and I consider the 10,000km interval to be the maximum run when the oil still fulfills its function.
Among other things, car manufacturers try to reduce TCO (Total cost of ownership) as much as possible, and the manufacturer would lose sales by changing the oil more frequently. Just look at other oils in the car - in particular, my car has a large "lifetime fluid - do not change" inscription on the transmission from the manufacturer - but the car manufacturer is not the manufacturer of the transmission. The transmission is manufactured by the German ZF - and it states directly in the manual for my transmission that the oil MUST be changed. But the manufacturer decided that the transmission would survive the warranty period (which happened) and therefore did not order an oil change to make the car more attractive to buyers. The same thing happens with engine oils - and it's a proven fact many times over.
Do you have any studies you can point to that indicate or prove that extended oil intervals, while using OE parts, decreases engine reliability or longevity?
@@drive.science I wrote a longer comment, but TH-cam decided to delete it for unknown reasons. But in short - yes, I have evidence and oil analyzes that confirm what I write.
@@neolerades2987link?
Hundreds of thousands of miles, compared to the 2 to 9 million miles. Hmmm…..
I personally do my oil changes every 5-7500 miles. This is with full synthetic only with occasional engine flush. I would never trust 10 thousand miles because quite frankly, Ive seen the damage it will cause first hand. Some cars doing 10k, yea. Most cars.. No, 5k is good. Some cars burn too much oil to even make it 5k, some cars oil is pitch black by 3k (Looking at your Hyundai/KIA) or has bad engine leaks. Also I wouldnt trust modern car manufacturers to honor warranty if your engine prematurely fails and you did the oil changes when it said too. 10 thousand genuinely seems too long.
oil filter bypass valves usually opens at 10 to 20 PSI,meaning it only filters at idle or slightly over ile speed(every 1000RPM=10 PSI of oil pressure generally)
so 90% of the time the bypass valve is open and oil filter does nothing
Oil and filter are cheap engines, are not at 3.000 miles change the oil. Original owner 01 Ford Excursion v10 365.000 miles oil changed every 3.000 miles. Don't trust manufacturers recomendations remember they want you to buy a new car because of planned obsolescence they know how long the vehicles going to last with there recomendations.
Did you watch more than 20sec of the video?
@@drive.science you know people like this dont.
You cant talk some folks out of a 3k interval. You'd figure all the tech it takes to make a TH-cam Comment, that folks would understand that everything has advanced, including oil. But it still escapes folks.