370Z oil consumption

FricFrac · 08-10-2009, 11:37 AM

Quote:

Originally Posted by need4speed

....
N like I said once b4. Leave 1st year cars to the true enthusiasts. They r the ones that will void warranty day 1. They are the ones that find out what's wrong n assisting in the improvent of these cars.
2nd year cars are better for novice drivers. Because companies have worked out 75% of the kinks n quirks. By year 3 you are looking at 97% of quirks gone.
Unless ur a enthusiast and/or a diy mechanic. 1st year cars should be avoided.
So the forums don't get filled with non existant problems.

That use to be the case but I think a lot of things have changed in the last 10 or so years. The 370Z engine has been around for the last two years and while the 370Z platform is new there is a lot of stuff that is very similar on the 350Z, G35 and G37. I've found this new car to be surprisingly unquirky. There is the odd thing but not really an unusual amount even for a vehicle that's been produced for a number of years.

That being said at 5300KM I had burned a liter of oil. Not too concerned about it....

Reality · 08-10-2009, 12:02 PM

since the G37 was released.. a few friends (who work at or with Nissan/Infiniti dealerships) have advised me that many 3.7 vq's are loosing oil.
At one dealership, 3 g37's were waiting on new motors.

So once again, OC issues arise with our beloved VQ motor.. Coming from 2 revups, I can feel your pain.

If I do purchase a 370z, I will def be waiting on the 2010 model.

ZzzZz · 08-10-2009, 04:42 PM

<0.5qt every 3000 so far. I'm at a little under 10,000 mi on the Odometer.

XwChriswX · 08-10-2009, 04:48 PM

Is that due to simple fluid breakdown, or is it getting evaporated out? Or is that grounds for a definative leak somewhere and we should be flashlight scrubbing our blocks at night for drips?

Modshack · 08-10-2009, 05:08 PM

Quote:

Originally Posted by ZzzZz

<0.5qt every 3000 so far. I'm at a little under 10,000 mi on the Odometer.

That sounds perfectly normal..

Quote:

Originally Posted by XwChriswX

Is that due to simple fluid breakdown, or is it getting evaporated out? Or is that grounds for a definative leak somewhere and we should be flashlight scrubbing our blocks at night for drips?

Oil doesn't evaporate out. If it's not leaking it's getting burned. All engines burn some oil even if only a fractional amount. Most manufacturers won't even raise an eyebrow until it starts to exceed 1 qt per thousand miles..

XwChriswX · 08-10-2009, 05:11 PM

Thats what I figured, I know it sounded retarded, but wanted to knock it out and confirm its not even plausible lol. But ok, then I won't be jacking up the car every night looking for drips on the driveway..

antennahead · 08-10-2009, 05:30 PM

Coming from an '06 350 that had the original engine replaced for OC, I hope this isn't a problem for the VQ37.

John

zZSportZz · 08-10-2009, 07:00 PM

Hrmm...every vehicle I've ever owned the tail pipes turn black. I guess every car I've owned must burn oil.

Edit: That was sarcastic btw.

These are combustion engines that burn fossil fuels. There will be soot in the tail pipe over time. Also, keep in mind that these cars run REALLY REALLY rich.

I have some blackness in my tail pipes and my oil level hasn't moved. Lets not get worked up over nothing

Modshack · 08-10-2009, 07:10 PM

Quote:

Originally Posted by zZSportZz

Hrmm...every vehicle I've ever owned the tail pipes turn black. I guess every car I've owned must burn oil.

Black tailpipes are usually carbon deposits from the burning of Gasoline. The richer a car runs, the blacker the tips..

zZSportZz · 08-10-2009, 07:13 PM

Quote:

Originally Posted by Modshack

Black tailpipes are usually carbon deposits from the burning of Gasoline. The richer a car runs, the blacker the tips..

HEHE, I was editing my post as you posted this. I agree, I was being sarcastic.

Edit again: I did go back and read the OPs post though, and he has added in oil. I lost sight of the original post and for some reason thought this thread was about black tail pipes = burning oil. Think I misunderstood.

Reality · 08-11-2009, 10:33 AM

Quote:

Originally Posted by chubbs

Can we stop the stupid bitching and get back on topic? This has the potential to be a good thread. It doesn't encourage the topic starter (who is new here) when his thread is wrecked by silly keyboard wars. Nissan engines have a history of oil consumption problems - this thread could monitor any potential issues with the VQ37.

^+1

I know for certain the VQ37 is loosing oil, not necessarily burning it, but def loosing...
All to familiar for me...

Modshack · 08-11-2009, 11:01 AM

Quote:

Originally Posted by Reality

^+1

I know for certain the VQ37 is loosing oil, not necessarily burning it, but def loosing...
All to familiar for me...

And you know this how? If an engine is losing oil and NOT burning it through the combustion chamber, it is leaking it. Fix the leak. Pretty simple. Not all of the tens of thousands of VQ37 motors are consuming oil.

Reality · 08-14-2009, 08:16 AM

Quote:

Originally Posted by Modshack

And you know this how? If an engine is losing oil and NOT burning it through the combustion chamber, it is leaking it. Fix the leak. Pretty simple. Not all of the tens of thousands of VQ37 motors are consuming oil.

I know this from talking with master mechanics at various Infiniti dealerships.. also having close friends who work at the dealerships, helps..
^ 6 cars between March - June, were waiting on engine replacements... can't be a fluke. and when they check for OC, its supposedly similar to the amount seen with the Revup Motors.

Question:
-How would you fix a leak, when the problem with the revups were supposedly caused by valve overlap.. This overlap created a vacuum which would suck the oil via the guides and out the exhaust.
So how do you fix an inherent flaw in the design?
Do you think Nissan is going to issue a massive recall and loose millions?

I hope my information was somehow limited to those vehicles that I heard of.. but I would not hold my breath.

antennahead · 08-14-2009, 05:35 PM

Quote:

Originally Posted by Reality

I know this from talking with master mechanics at various Infiniti dealerships.. also having close friends who work at the dealerships, helps..
^ 6 cars between March - June, were waiting on engine replacements... can't be a fluke. and when they check for OC, its supposedly similar to the amount seen with the Revup Motors.

Question:
-How would you fix a leak, when the problem with the revups were supposedly caused by valve overlap.. This overlap created a vacuum which would suck the oil via the guides and out the exhaust.
So how do you fix an inherent flaw in the design?
Do you think Nissan is going to issue a massive recall and loose millions?

I hope my information was somehow limited to those vehicles that I heard of.. but I would not hold my breath.

As the owner of an '06 OC 350, who did a lot of research on this, from what I could gather you are basically correct ......... vacuum suckout through the exhaust.

John

tstrick9 · 08-11-2009, 04:03 PM

So back to the issue... less than a quart per oil change interval is ok, but more would be indicative of a oil-burning issue?

08-10-2009, 12:02 PM	#2 (permalink)
Reality Enthusiast Member Join Date: Dec 2008 Location: Toronto, Canada Posts: 290 Drives: '06 PPW GT Rep Power: 17	since the G37 was released.. a few friends (who work at or with Nissan/Infiniti dealerships) have advised me that many 3.7 vq's are loosing oil. At one dealership, 3 g37's were waiting on new motors. So once again, OC issues arise with our beloved VQ motor.. Coming from 2 revups, I can feel your pain. If I do purchase a 370z, I will def be waiting on the 2010 model. __________________ //2005 35th SB #81 [tyra] SOLD //2006 GT PPW SOLD

08-10-2009, 04:48 PM	#4 (permalink)
XwChriswX WFLYIDNNE Join Date: Jul 2009 Location: In The Fastlane Posts: 50,648 Drives: 02 GDB WRX Rep Power: 452	Is that due to simple fluid breakdown, or is it getting evaporated out? Or is that grounds for a definative leak somewhere and we should be flashlight scrubbing our blocks at night for drips? __________________ Bonnie - Stage 2, Audio build coming this fall! R.I.P. Abby 3/29/10 - 3/30/14

08-10-2009, 05:11 PM	#6 (permalink)
XwChriswX WFLYIDNNE Join Date: Jul 2009 Location: In The Fastlane Posts: 50,648 Drives: 02 GDB WRX Rep Power: 452	Thats what I figured, I know it sounded retarded, but wanted to knock it out and confirm its not even plausible lol. But ok, then I won't be jacking up the car every night looking for drips on the driveway.. __________________ Bonnie - Stage 2, Audio build coming this fall! R.I.P. Abby 3/29/10 - 3/30/14

08-10-2009, 07:00 PM	#8 (permalink)
zZSportZz A True Z Fanatic Join Date: Mar 2009 Location: Maryland Posts: 1,095 Drives: 370z Blk on Blk 6MT Rep Power: 19	Hrmm...every vehicle I've ever owned the tail pipes turn black. I guess every car I've owned must burn oil. Edit: That was sarcastic btw. These are combustion engines that burn fossil fuels. There will be soot in the tail pipe over time. Also, keep in mind that these cars run REALLY REALLY rich. I have some blackness in my tail pipes and my oil level hasn't moved. Lets not get worked up over nothing __________________ --Rick

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08-10-2009, 04:42 PM	#3 (permalink)
ZzzZz Base Member Join Date: Jan 2009 Location: SoCal Posts: 125 Drives: PG370, MT Rep Power: 17	<0.5qt every 3000 so far. I'm at a little under 10,000 mi on the Odometer.

08-10-2009, 05:30 PM	#7 (permalink)
antennahead A True Z Fanatic Join Date: Mar 2009 Location: Charleston, SC Posts: 15,181 Drives: '07 Z4 "M" Roadster Rep Power: 58	Coming from an '06 350 that had the original engine replaced for OC, I hope this isn't a problem for the VQ37. John

08-11-2009, 04:03 PM	#15 (permalink)
tstrick9 Base Member Join Date: Jun 2009 Location: north carolina Posts: 45 Drives: 2003 cobra, 2006 tb Rep Power: 16	So back to the issue... less than a quart per oil change interval is ok, but more would be indicative of a oil-burning issue?

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