Nissan 370Z Forum

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-   -   2012 370Z burning oil (http://www.the370z.com/engine-drivetrain/61536-2012-370z-burning-oil.html)

binary0x01 10-08-2012 03:40 PM

0w40 liqui moly; good stuff so far :)

MJB 10-08-2012 03:47 PM

Correct me if I'm wrong, but if your engine is burning oil shouldn't you see bluish colored smoke from the tail pipes? I thought if you are seeing a bunch of white smoke than you could have water/coolant in your oil....?

edub370 10-08-2012 03:49 PM

i love how 10 years ago if u burned a quart every 1,000 miles something is wrong with your engine. but now if u burn 1 qt every 1000 miles you are "within spec"

Motion Lab 10-08-2012 04:05 PM

Id say 1qt/1000mi is pretty bad.....

There is no reason to lose faith! You can always do a leak-down test to confirm if the oil is getting past the piston (blow by) which would then essentially lower your compression. We build a lot of STi motors as piston #4 is a common failure point. A ring issue is the most obvious thing to check for oil consumption, just not typically with such low milage. During the leakdown test you will bring the engine to top dead center and make sure the camshafts are in the correct phase. You want intake and exhaust valves closed, and piston at the top of the deck. Then use your leakdown test to force compressed air (typically ~90PSI) through the engine. It will then give you a % of leakage. If you hear it out the intake or exhaust you have a valve train issue, if you feel air or hear air out the oil filler neck that is a piston issue, if it comes out the radiator cap then you have a head gasket issue. I think if you can find a reputable shop to perform the test, then if you had poor results you could go back to Nissan and present your data to help with the warranty claim.

Thanks,
Alex Goodwin
AlexG@motionlabtuning.com

cheshirecat 10-08-2012 04:11 PM

Quote:

Originally Posted by jcosta79 (Post 1950624)
Burning up to 1 qt of oil per 1,000 miles is within acceptable tolerances.
Even hyper exotics are allowed to burn up to 1 qt per 1,000 miles and the manufacturer is off the hook.
Keep track every 1,000 miles of how much oil you are burning. If it is less than 1 qt/1K miles, there is nothing the dealer will do. (My 2nd 350Z was a notorious oil burner so I have been through this dance before) You will just have to keep adding oil. If it is more than that, then the dealer "should" (doesn't mean they will) do something about it.
Sorry.

Luckily for the OP, or anyone else who may be experiencing oil consumption with the VQ37, the information above is completely incorrect.

Please check the TSB issued for the VQ37 regarding acceptable oil consumption.

This is from Infiniti but it's basically the same thing as Nissan. The nissan one is on this site in the TSB section but I'm lazy.

http://www.infinitig37.com/TSB/1SY30.pdf

cheshirecat 10-08-2012 04:12 PM

Quote:

Originally Posted by MJB (Post 1950693)
Correct me if I'm wrong, but if your engine is burning oil shouldn't you see bluish colored smoke from the tail pipes? I thought if you are seeing a bunch of white smoke than you could have water/coolant in your oil....?

Not necessarily. Carbon buildup (soot) on the tailpipes, however, is very common.

Ubetit 10-08-2012 04:18 PM

Quote:

Originally Posted by jcosta79 (Post 1950624)
Burning up to 1 qt of oil per 1,000 miles is within acceptable tolerances.

.

No it's not

anthonyy 10-08-2012 04:22 PM

Quote:

Originally Posted by Ubetit (Post 1950776)
No it's not

:iagree: That's an awful lot to burn for 1k miles... "regular" or not.

jcosta79 10-08-2012 05:22 PM

Quote:

Originally Posted by Ubetit (Post 1950776)
No it's not

I'm only telling you what the dealer told me when I had this issue with my 350Z.

Mr&Mrs 10-08-2012 06:14 PM

Sounds like they fooled you, like they tried doing to me. I have a car 8 years old Turbo'd beat the hell out of that does not burn this much oil.

Quote:

Originally Posted by jcosta79 (Post 1950913)
I'm only telling you what the dealer told me when I had this issue with my 350Z.


mhcoss 10-09-2012 12:42 AM

thx for the responses folks. Took her for a drive to the misses family for canadian thanksgiving today.. seemed to be running well. Going to schedule an appointment with a dealership, in the meantime I plan on doing my own oil consumption test. Stay tuned.

I think I may be f-ed though, Pretty sure my warranty is void simply because I'm american and bought it in america and registered it in Canada.. we will see though.

cheshirecat 10-09-2012 06:03 AM

Quote:

Originally Posted by jcosta79 (Post 1950913)
I'm only telling you what the dealer told me when I had this issue with my 350Z.

I had to go through the same thing. The first dealership I went to about my '06 Rev-Up eating oil told me that 1qt per 1k miles is acceptable. They didn't have much to say when I asked why, then, would Nissan suggest up to 7500 miles between oil changes.

They even went so far as to overfill the engine by a quart during the oil consumption test. On moderate acceleration, oil would spew out of the dipstick and onto the block, giving me a nice smoke show. Pretty cool, huh?

Luckily, the next dealer I went to went ahead and replaced the short block. Problem solved.

I'm going through it again now, though- about 1qt every 750 miles.

I'm personally not going to be that sad to be the VQ35/37 go.

Compdoc777 10-09-2012 07:40 AM

If you are smelling buring oil that is bad. If you see oil smoke at star up that is bad. Sounds like you could have a leaky oil seal in one of the valves and or even leaking head gasket that is allowing oil and air to escape from one of the heads.

I would get it in quick. The warranty will cover it all and you get a loaner.

jcosta79 10-09-2012 09:02 AM

Quote:

Originally Posted by Mr&Mrs (Post 1951009)
Sounds like they fooled you, like they tried doing to me. I have a car 8 years old Turbo'd beat the hell out of that does not burn this much oil.

Nobody "fooled" me. I was not happy but they wouldn't budge. What else could I do? It's just a car. Not worth the aggravation. My concerns were documented.

cheshirecat 10-09-2012 09:56 AM

Quote:

Originally Posted by jcosta79 (Post 1951769)
Nobody "fooled" me. I was not happy but they wouldn't budge. What else could I do? It's just a car. Not worth the aggravation. My concerns were documented.

Take it to another dealer. Get NNA involved. Get an attorney. You have plenty of options- it just depends on how far you want to go with it.


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