2012 370Z burning oil

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

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

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

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

No it's not

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

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

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

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

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

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.

10-08-2012, 03:40 PM	#16 (permalink)
binary0x01 Track Member Join Date: Jun 2012 Location: Idaho Posts: 892 Drives: 2012 6-SPEED 3.7L Z Rep Power: 14	0w40 liqui moly; good stuff so far __________________ Tune (by Seb@SpecialtyZ) -- Upgraded Parts List : When in doubt, use brute force; if it doesn't work, you aren't using enough.

10-08-2012, 03:47 PM	#17 (permalink)
MJB A True Z Fanatic Join Date: Aug 2011 Location: Tacoma, WA Age: 41 Posts: 1,498 Drives: a POS truck Rep Power: 496	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....? __________________ 09 Nismo #0483 sold. Viper or C7 next time around.

10-08-2012, 03:49 PM	#18 (permalink)
edub370 A True Z Fanatic Join Date: May 2011 Location: KCMO Posts: 3,458 Drives: 09 370z S/T 6MT Rep Power: 21	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" Initial Z likes this. __________________ 09 370Z ST 6MT//Injen CAI//Greddy CBE//TP//TSW's//Swifts//Stillen lip//Whiteline sways 326whp/268tq

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10-08-2012, 04:05 PM	#19 (permalink)
Motion Lab A True Z Fanatic Join Date: Jul 2012 Location: Charlotte, NC Posts: 2,676 Drives: Nissan 370Z Rep Power: 18	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

10-09-2012, 12:42 AM	#26 (permalink)
mhcoss Track Member Join Date: Feb 2012 Location: Edmonton Posts: 520 Drives: 2012 370Z SPORT M/T Rep Power: 15	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.

10-09-2012, 07:40 AM	#28 (permalink)
Compdoc777 Enthusiast Member Join Date: Dec 2011 Location: Cypress Posts: 277 Drives: 2011 Nismo #4 MB Rep Power: 14	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.