How To PROPERLY Fix G35 / 350z Oil Consumption
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- เผยแพร่เมื่อ 26 ก.ย. 2024
- This is the right way to fix oil consumption on an Infiniti g35 and Nissan 350z. An oil catch can or pcv delete is only a temporary band aid fix to the problem. If you're loosing oil, check for leaks first.
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In regards to BMWs, the M54 engine has low tension piston rings. Excessive oil consumption is also concerned on those engines I own one of them. One of the fixes is replacing the piston rings with the older style piston rings with a smaller Gap. The other fix is a $2 piece of vacuum hose which connects to the back of the manifold and down to the PCV or they call it the crankcase ventilation valve CCV. What this does is it increases vacuum pressure in the crankcase sucking the piston rings the low tension rings to the size of the cylinder and scraping the oil off. I went from burning 1 quart of oil every 300 miles to 1 quart of oil every 3000 miles. So the idea behind using a catch can is similar but really what you should be doing is increasing your crankcase vacuum pressure
Finally, a video that accurately describes why these cars lose oil. Yep, it's the piston rings. Problem is, these cars were *designed* to lose oil through the rings. It was done to decrease friction and improve gas mileage. Not a very well thought out solution, but there it is. Great vid. Subscribed.
Thank you!
Sorry for being two years late but this is nonsensical. I've ran multiple VG, VH and VQ blocks and this has never been an issue
Bro the music is WAAAAYYYY to poppy and exciting for this video you need chill relaxing music.
Was thinking the same mid video 😂
Shut up. Make your own video doofus
Piston rings makes the most sense. I also think people not waiting (at least a minute) on start up, so metals can expand and those piston rings can make a better seal.
Very true
@@OPDrags I think if you're referring to Motordyne G35, that guy started stuff with me and I just ignore him now (he doesn't do any kind of custom).
But he has a dangerous jackstand video where he puts the jackstands side ways on the pinch seams. I talk to a bunch of shops and no one seems to agree with that style.
@@AnthonyJ350 I am referring to him lol. We started off really cool and bounced info back and forth and then he completely turned on me and started drama.
Doesnt surprise me that he did that either. He made a vid years back calling me out on stuff about performance parts and saying false info about parts on our cars that go bad and what not. Throughout the years he made videos of replacing those parts that I talked about and didnt even go through with the performance parts that he called me out on about lol.
@@OPDrags Sounds about right. He has some sort of "I'm better than everyone agenda". He made fun of me in the jack up a G35 video, oh well.
He copied my "dip stick modification" video by sanding it trick (my Dad gave me that idea).
I think people like that are just not happy with themselves so they go around aimlessly bringing people down to their level. The good thing is smart people will see right through their B.S.
I noticed a lot of your viewers already know who you were referencing lol.
@@AnthonyJ350 yeah hopefully more people slowly realize. Just annoying he's making the videos for click bait and not really educating people. Just telling them what they wanna hear which is the easy way out and easy simple fixes for everything. Biggest one was is over 300 whatever hp video he made and I already knew he was just talking about crank power lol. After I install my nitrous I was gonna make a vid with his same title just to poke and have some fun.
Btw just wanted to say I've watched a ton of your videos over the years. Super super detailed and has helped me numerous times
We have to remember these cars are getting older they're going to develop leaks and things are going to start breaking on them but overall the 350Z are very durable engines and with proper maintenance don't wear out. They are known to get leaky as time goes on but that's with any engine after a few years gets on it
True, however they were getting the oil consumption issues while they were still under factory warranty. That's not a lot of miles on them lol
I have an 85 VG30E (sohc) with 400k miles and I don't have this problem.
I have a VG33ER don't have this problem.
Have a VH45 not a problem.
A VG35 and VQ37, dont have this problem.
Y'all niggas gotta be doing something wrong.
If oil ends up in the catch can then ur still loosing oil going to the can right? Which means my oil level is getting low. All a catch can does prevent the blow by going to the intake plenum. I’ve owned my 04 g35 coupe since 2008. Plenty of little bullshit problems that don’t kill me, but bugs the shit out of me. Electrical issues. window motor, keyless entry, sunroof. Bushings: control arm, diff, subframe n radius rod. Fuel gauge pisses me off too. Power seats too. If u have a spoiler the paint fades fast too. Last but not least, burning oil n oil leaks. Especially valve covers.
Yeah im pretty sure I need to do my valve covers lol
OPDrags I thought auto don’t have valve covers, lol. I was talking about valve cover gaskets where the spark plugs go. Just wondering how much more time n $ u going to invest till u finally realize bolt ons don’t do anything for the vq.
Yes lol I need to do my valve cover gaskets as well. Im already full bolt ons. Too late lol
OPDrags same here, I might as well get a tune, but not too sure if I want to pull the trigger. There’s a tuner right right down the street from me. I hear he’s pretty good at it. His name is Saul from nismo knights I think. Have u heard of him?
It's a labor of love, isn't it? I'm starting to get a lot of the same problems in my '05 (Window Motor, Gas Gauge, Cam Sensors, Bushings/suspension blow, rust on all four corners - my fault - rough idle etc). Somehow my gas mileage is still pretty decent, though. When the time comes that I have enough money to start fixing her back up, I'm not sure if I want to chase the problems until they are all fixed and still end up with a VQ block or just throw the damn thing away and put an LS series in. Might cost more upfront but seems like there'd be way more attainable horsepower with fewer problems down the road...
My main reason for installing a catch can was to keep oil from going into my manifold and plenum. On top of that my G idles way smoother and about 150 rpm lower. Sports cars are gonna burn oil. If that bothers you, drive a Prius🤣
That's why I installed a pcv delete. My car doesnt burn oil, this vid was to correct some wrong info I've been seeing lately
@@OPDrags Before running a catch can I tried the PCV deletes with the breather filters and for some reason it was causing a vacuum leak. Have you ever had any similar issues from it?
@@ThrowyaXup holy shit..... I've been having o2 senor issues since around the same time of doing the pcv delete. I've replaced literally everything and still hasnt fixed. Ima get a catch can now and see if it fixes it. I dont think its causing a vac leak, doesnt sound/feel like it bit could be enough to throw that code
@@OPDrags so I installed my catch can last Saturday, with megan test pipes. Tuesday I installed MD art pipes and the CEL turned on for one of the o2 sensors. Trying to figure out if it's the art pipes or the catch can, because it wasn't throwing the code with the megan pipes 🤔
@@ThrowyaXup which code is it?
Bruh... I subscribbed just because the first scene lmaooo...watching the sunset lmao
Lol thanks! Have another idea for an Intro. About that time to change it up. Had this one for awhile haha
I have a 350z with the revup engine from new I was burning a quart every 3000 miles I now have 270.000 miles it never changed I still burn the same from day one my grandpa was a mechanic he used to tell me this engine was designed to burn some oil and that actually is a good thing less friction I guess he was right !! It’s still running strong
All engines burn oil. Just some burn more than others
@@OPDrags if you think VQ’s are bad lol my wife’s new bmw burns a quart every 1500miles all modern engines use oil like you said some more some less
@@ΤοΠαρατηρητηριο jeeez yeah thats pretty bad haha
I love this motor but I'm thinking of an ls1 swap
glad i watched this.. makes sense i do remember hearing about the oil consumption tests ..your totally right , why would the dealership spend thousands on a motor and labor instead of a catch can
Yeah I mean i get why people say it because instead of the oil gong back through the intake its going into the catch can. But in the end its still losing oil lol
So I’ve got a 07 G35 coupe with check engine light on and I’m burning oil. Got it checked and mechanic is telling me it’s the valve intake but i don’t see any leaks...
Could be the back of the valve cover. Pretty common spot
Never seen your videos before this, instantly subscribed!
Thank you!
What kind of rings do you recommend?
I know it's the same with the Chevrolet LS1 or LM7 V8 engines where people have fitted catch cans to mask an oil consumption problem.
It has either been a badly baffled valve rocker cover or worn piston rings,Holden replaced or rebuilt the 5.7 litre V8s in 1999 under warranty when they first fitted them if they consumed 1.5+ litres within a 10,000 kilometre service interval,they had a piston skirt to cylinder bore clearance issue in a batch of them which were shipped to Australia.
Mine is a 2002 built LS1 engine which doesn't have the oil consumption problem, it has done 342,593 kilometres since new !
Oh dang nice!
Wow, it amazes me how everyone is having oil consumption problems, I don't know if i just got lucky or what but I'm also not trying to Jynx myself either but, my 03 350z at the moment with just above 131k miles, I don't seem to have any problems with oil consumption. ??? Idk maybe I got one of the lucky ones or probably because I don't drive my Z shitless like how most people would but anyways good luck to everyone!
You also have the nonrev motor which helps a ton lol. The nonrevs are less common to have OC compared to the later revup motors. But even with you high miles and still not consuming oil is really good. Definitely treating that engine right!
Thanks brother
TLDW: It's the piston rings
yessir
So I have a 2006 350z with the revup motor and i'm fairly certain my oil consumption is abnormal(it definitely is). I went through almost 25 quarts of oil in 10000 miles. My question is more if it's valves or piston rings.. Any idea? Seems to throw puffs of smoke at random times when giving it gas. It does have test pipes and It doesn't seem to be smoking most of the time which is weird especially with the test pipes.
Definitely piston rings. However I would go through and check everything before taking it to that step. Check the pcv, check valve covers, rear seal, ect. Those will also make you lose oil. But most of the time it's been shown to be the rings
Thanks for the info, I do have a very minor oil leak on one side but leaves no oil on the ground so i figure most of it is getting burnt up. You think switching to a heavier weight oil would help? Can't afford a rebuild right now so keeping it alive at the moment is my priority. I'm currently using synthetic 5w30 but was thinking maybe 10w40? Thanks again for the help.
also pcv was replaced a few weeks ago
NFSundrgrnd 15 40 is what im using to remedy for now
jj Thanks, i'll give it a try
Yup, I saw that video about the catch can, I almost peed my pants from laughing so hard, you can't stop oil consumption using a catch can. You can slow it down by changing to high mileage oil, and trying different brands till you find one that your engine likes, but that's great for minor oil usage, but it won't do much if it's burning a lot of oil, then the only solution is new rings and new valve seals, but if you're getting that far into the engine you might as well rebuilt it completely.
Whats the title of the video I need to see this lol
Just rebuilt a custom vq35rev up for 10K with all performance parts and she burns oil still! Likely the valve guide seals/valve stem seals on the heads. only smokes on start up due to the oil leaking into the pistons from the heads, when cooled down the vlave guide seals dont retain oil properly if worn out!
Does plenum fixed burning oil and is that the same as oil consumption? I'm kinda confused I did an oil change the other day and noticed like 2 or under 3quarts it looked like my engine had..
No you are correct ..piston rings and i have experience with it all. Seems everybodys momma has a catch can because they like to say oil catch can just about as much as they say pcv delete.. but they dont know why .. so click bait happens. Gotta love them though maintaining some culture
I haven’t even bought my 350z and I’m already worried about the problems just in case 😅
Lol overall they're pretty stout engines. Really takes a lot to have them break. At least thats what my experience has been so far these past 8 years
Just replaced my spark plugs on my 350z noticed cylinder 5 and 6 plugs had a lot of oil in there ? What could cause that issue
Probably the spark plug tube seals in the valve cover. Not replaceable so you'll need all new valve covers and gaskets
So your telling me a brand knew 350z (or never driven) Will not have any oil consumption or oil burning/ gunk build up on the valves??
Not necessarily. A brand new engine wouldn't have gunk build up lol and even a low mileage one could or could not have that much build up depending on how well it was taken care of. But oil consumption could happen at any point. Every car even brand new are meant to consume some amount of oil. Just how engines work. It becomes a problem when they consume more than they should.
@@OPDrags ssoooo they DONT need a problem to be consuming oil. That's what I was getting at
Correct. Ive talked to people that were very up to date with maintenance ect and it still consumed
So what happens if I don’t fix the piston rings? Is it going to ruin my cat converter?
No it shouldn't. Just be burning/consuming oil. Just make sure to check all possibilities and know if it's the rings or not
At 3:30 did you say "check for LEAKS? (Not LINKS) If you don't find any leaks then its your piston rings"? So if you see leaking then it's probably something other than the piston rings? I just wanted to clarify that
Leaks lol. Correct these cars have a few spots like valve covers and rear main they leak from. I thought I had oil consumption on my 06 DE because I lose like 2 quarts by 3k miles. Turns out I just leak oil from the rear of the engine. More than likely my valve covers even though thankfully my spark plug tube seals are still fine and they stay dry. So I dont really worry about it, just change my oil sooner
@@OPDrags cuz my 04 is leaking around the oil pan and i don't know what it is. Im about to replace the O ring from the oil cooler.
Yeah start there and just keep checking/replacing
so the oil rises in the chamber and burns? is that how it’s consumed?
Oil goes through the pvc valve to the manifold and mixed with fuel and air
@@SiddigHammed-dw6tl lol I’m in school for automotive engineering now but despite that I do research on my own time. Piston rings can fail ovetime this may be due to improper lubrication of the rings which can cause it to remove material off the ring resulting in ring wear allowing for oil to be burned inside the chamber since the rings don’t seal as they should.
@@THXIIIRTEEN I know it has tight oil ring that why you have to use 5w30 but in my vq I used catch can to prevent oil from getting into engine through pvc now it's run like a horse
@@SiddigHammed-dw6tl oh yeah it’s satisfying looking inside the plenum and being oil free, I cleaned up my valves and intake ports when I removed my whole intake manifold. Just be sure to check your oil levels weekly, I run 5w30 royal purple + high mileage additive in the winter, since there’s no 5w30 royal purple high mileage, and in the summer I run a 5w40 Castrol, I’m at 160k miles. It gets really hot in my state hence why I go with a 40 weight in the summer, along with an oil cooler.
@@THXIIIRTEEN I personally use 10w40 in winter it's like 90f in summer I use 20w50 my country is super hot in summer if use 5w30 my car will consume about 1 liter a week so I've to go with 20w50
My 06 350Z drank oil like crazy since day 1 brand new. Eventually Nissan replaced the engine but that one was not much better.
My 37 just started to smoke sometimes never cold tho and only when deceleration Also after the deceleration if i rev i will get a small puff like i got the last of the deceleration smoke out and then its good i have to decelerate from above 50 in order to amoke and thats like 1-2 times out of 10 . I loose about an oz of oil a week or 2
My engine has 137k miles, is it even worth it to change my piston rings / rebuild it?
Id say if youre going boost its definitely worth it
OPDrags definitely have boost plans for the future but thats 1-2 years away, still good or no? Lol
You know the funniest think when I sesrch oil consumption fix for vq de. I'm pretty sure the guy you are talking about is above your vid 🤣 or at least another youtuber saying biy a catch can
lol it may or may not be a response to his
We all know it’s motordyne😂😂
I got 200,000 miles and she burns almost nothing 🙌 and she leaves everything on the block
Nice!
What oil brand and weight do u use?
I just had an oil change last & the oil pressure light turned on yesterday, I had to add nearly the whole 5 quart bottle! The oil also looked pretty dark already for just 1 week. Engine runs strong only 126k could it be the piston rings?
Yes if you dont see any noticeable leaks then 100% the rings
@@OPDrags no leaks, I was hoping it was the pcv valve, how much would it be to get some new rings installed?
i know 1 guess motordyne
LIVE, LAUGH n LOVE G35 I will neither confirm or deny 😂
OPDrags no need to my friend lol
lol how come he's the first guy that came to mind
@@OPDrags vented catch can or close catch can whichbone works best?
I would go with a vented
Hey man, you still rocking the breather filter? Had any problems with it? How often do you change your oil? Have you noticed your engine building up any sludge in any way due to all the contaminents (Moist, fuel etc) that will be left in the engine due to blowby since the vacuum that should be there pulling the bad stuff out of the engine and burning it, is now gone? :P
Yessir still have it on, change oil about every 3-4k miles, havent noticed any build up or anything
@@OPDrags alright, cheers man! :) I tried the breather filter for a lil while, drilled the pcv valve and noticed a BIG difference in oil consumtion since obviously i have ALOT of blowby oil from my piston rings that would normaly just pass throu the pcv/plenum and be burned away... This breather filter fix was perfect as it could just get rid of the pressure being created in the engine and get the oil to drip back in the oilpan instead of burning it away... But as i said, i'm afraid to harm the engine in the longrun and i've heard some ppl say that it's bad to remove the vacuum that will get the contaminated vapors away that wil be left inside the enginebay with this fix... what's your thoughts about this? :) i love my car and i would like to keep it for a very long time.. (had it for 5 years already).. it's a 350z -06 revup, @ around 70k miles so far.
Honestly while youre driving a lot of air goes through the engine bay so I wouldn't worry about the possibility of sucking in the vapors. I havent noticed my air filter getting oily or anything from the years of me having this done. I also have hood spacers so even at idle as well heat/vapors escapes the engine bay and doesnt get trapped
@@OPDrags Aight, thank you so much for answering my questions, Keep it up, stay safe from corona and have a good one man! :)
and also, you have a very nice car ofc! :D
Who is the popular g35/350z tuner?
LMT, Z1, Soho, rs enthalpy, saul nismo, all good options. Few more out there
Soo your next video is going to be how to replace piston rings right?🤔😊
Luckily I dont have OC lol. Buut I do have a pretty bad leak haha. Which is either from my valve covers (however no oil on spark plugs) or the upper oil pan. Havent really narrowed it down yet
@@OPDrags did you upgrade your radiator? Your engine probably runs too hot. An idea
If it's the piston and rings, the car will smoke so much that you will notice. No smoke piston and rings are fine.
Not always true. Also most people never pay attention or notice
Hmmmmm i wounder who is giving false information lol. But it is true what your saying it sad when you go to youtube to get help or find out out how to do things on your G and they give wrong info. Gald you did this video 👍👍👍👍👍
Yeah he started shit with me last year and actually made a video about me lol. But im not gonna do that so dont wanna call him out haha
OPDrags lol i know he did a recent video on a topic i just did and got way more views. I was like hey wth lol.
Sounds like the same person then haha
Only fix is rebuilding your pistons and adding better pistons rings
Better fix top up oil and post on craigslist clean title title good running no bullshit offers 5000 obo text only
I like your style
Just add oil and keep it movin.....
Pretty much 🤣
Is not good to use a filter in the valve covers! I been working on z for 5 years! Not goin to go over details but don’t use a filter! On the pvc valve cover most of this TH-camr don’t know what they talking about
Car runs perfectly fine. You might be the mis informed one
@@OPDrags yes it will run and and turn everything good like normal! No doubt about that
I think we all know who he is. I doubt he meant any harm.
Ehh there's a lot of back story and the reason why I hinted towards him lol
What kind of intake its sick
Limp Mode Tuning 4in intake
The truth hurts sometimes 😪
Ok. You’re partially right on the way a dealership would deal with it.
The reason they would replace the engine is because the problem of the piston rings not lasting expected service life is the key problem. The only way to undo that is to replace the engine.
I’m sure that I know who the TH-camr is. He’s fixing 50% of the problem. The reason “blow-by” even gets to the plenum is through the PCV system.
You tell me how it gets there without gas/oil/etc. vapor recirculating into the plenum and throttle body WITHOUT going through the PCV system- you can’t. It doesn’t.
This engine was designed to use oil as a protective way of decreasing wear, however the piston rings didn’t have as predictive wear that was expected. This is also how some Turbos and Superchargers work as well. There is alternate ways to accomplish the same goal, however, very common.
Sorry, but this isn’t accurate either.
Well thank you for confirming what I said
@@OPDrags well…partly.
Oil cooler too🤔
Wouldn't really help OC
On
How much does it cost to replace those rings
Easily $1k+ since the engine has to be removed and taken apart
@@OPDragsIs that number what a shop would quote you or DIY
Not hating but why do people but nismo decals on cars that weren’t created by nismo lol I have a Altima SE R and that car was actually created by nissans nismo section not g35s
Because it's still Nissan and nismo did make parts for the 350z/g35. Also that oil cap was on when I bought the car and when I tried to find it recently, it's no longer sold/made.
Renault=no more nissans for me.
Why? Did Renault buy Nissan recently or something?
All cars consume oil....check your car weekly no matter what you drive ...especially if you have high miles...high reving motor...and older car years ...in the end you'll be ok..
Yes they do. But some consume more than others and thats where it becomes a problem
Mine maybe a qt.every 2 months im happy with that.
Nice video whats the price and labor for something like this
A catch can is like $50-400 depending on which one. A new engine is in the thousands
And did it fix your oil problem
I bought a mishimoto catch setup, but Im wondering if it's gonna solve my oil issue.i keep blowing my valve's and it's always the driver side,in the past three years I had them replace three times
I dont have oil consumption. But no they wont fix it
I think youre a little confused on this topic. Oil consumtion can be caused by a number of things. Worn piston rings, Leaking valve guide seals, or through the PCV system. The Common "Oil Consumption" Issue with the 05-07 G35s is caused by the PCV system, which causes the engine to burn oil through the intake, not past the piston rings. On MOST cars, piston rings are the main cause of oil consumption. That is not the case for the Rev Up VQ Engine. Not sure where you are getting your info from.
The PCV system is the same through nonrev and revups. So why would it that be a cause only in revups? lol I said in the video that deleting the system helps and is recommended but its not a fix. As I also said in the video, one of the best and well known VQ tuners commented on the subject as well. I ALSO said in the video that other things can cause it. My information is from G35Driver and My350z from years ago on the subject of oil consumption which I ALSO AGAIN stated in the video. Please next time watch the video and do your own research haha
If it was caused by the PCV system, then why would owners get their engines replaced under warranty by Nissan/Infiniti? I think the dealership would've much rather replaced a PCV system than a whole engine. Just my thoughts though
Very true. Faulted piston rings from factory. The habitual occurance of oil burning/loss causes premature wear to cylinder wall and crank due to low oil inevitably leading into a rod knock or engine failure. Plus your cam solenoid are based off oil pressure. If you understand how to read japanese you can find better results supporting these statements or just know anything about nissan in general.
Dominic Barile idiot learn your shit before commenting. You just got corrected
Hi,What's a really good catch can to get for your G35? Brand & size?
I would go with one that's vented and even better if its baffled. I think mishimoto might make one or Z1 has a few on their site. I personally would just get an Ebay vented catch can and call it good but that's just me lol.
@@OPDrags I think mishimoto catch can kit for G35 will be good. Thanks.
@john wilson I don't know but they do have a special kit like a direct kit for G35 engines and is expensive over $200.00 dollars .