Did they give u any ****e about the intake you have? Also I wasn't looking
for a free install on the clutch for the guy who said I was looking for someting
free! I just thought that now would be a good time to do it since they have to drop the tranny anyway. Some people think they know everything on this
board.

 

Im on my last oil consumption interval with my 06 g35 coupe 6mt. Hopefully everything goes smoothly.

 

Read somewhere on here about the same noise not too long ago, but the noise was only for a few seconds after start-up then goes away.
It was said that if sitting for awhile, the noise on start-up is most likely the timimg chain relatively dry from sitting so long, but once the oil pump gets oil in the top end, the chain gets its lubrication and qiuets down. Nothing to worry about, it's normal.

But if this noise is continious, and very low on oil, well then it's obviously due to an oil consumption problem.

Here's a very long thread on oil consumption. It's been around for awhile and still continues.
https://g35driver.com/forums/g-spot/110973-everyone-check-your-oil.html

 

Thanks for the old thread. I just can't believe this motor is so friggin fragile!
I mean my last ride was a '99 c5 and it burned maybe a 1/2 qt of oil every
3500 miles. I can't believe automotive gurus from the far east are getting their asses handed to them in comparison to Detroits new breed of sports cars. I personally haven't heard of any major problems with the new Z06. I thought I was getting a car that was built a little bit better than my Chevy.
Turns out I shoulda just bought a Z06 or a BMW M3.

 

i had my engine replaced at 5000 miles its a problem with the piston rings once they replace it the problem is fixed and very capable of FI

 

Don't quite agree with the VQ being fragile. I understand the frustration of this oil thing. Not all VQ's are like this. Seems to be mostly the rev-ups.
They're known for high vacuum pull during break-in up to about 10K. Then the oil consumption calms down, of which was my case (was at 1qt/1200mi now at 1/2qt per 3750mi)
But there are some that have the ring problem on top of high vacuum or just bad rings from the get go. Those are the bad ones and ones being replaced.
There's lots of VQ's that are running FI with no problems, but don't know how many of those are the rev-up's.
IMHO, I think they may have pushed the VQ35DE to it's limits on the rev-up and/or some of the oil control rings can't handle the 298hp and/or high vacuum design.
Now with the new HR series VQ, they redesigned the block. The whole engine is 80% redesigned. They did something to reduce the side pressure on the pistons, rings and cylinder walls. Forget what they called it. Haven't heard any complaints here about oil consumption, though I don't go in the sedan or 07 sections so idk.

 

Just cause it burns oil?


Do the 2007's have this as well?

I have a Vq30 in an I30, and a Vq35 in a Qx4 and havent had any problems, hell the I30 has 100k and literally doesnt burn a drop

 

I guess I am just ticked because all I hear about is how crappy American
cars are produced. How they have subpar reliability and are so far behind the
germans and japanese in quality control aspects of production.
Well I can tell you that I had my vette for 5 years and the only problem I ever had with it was a squeeking noise I just couldn't seem to track down. I mean I literally DROVE IT LIKE I STOLE IT on a semi-regular basis. When I had the oppurtunity and I wouldn't scare or put other motorists in danger.
I think after my oil consumption test I'll either be selling this car or giving it to the wife to drive. She has an FX35 now and thats been a wonderful SUV. Its got plenty of punch for her and it has been pretty reliable. Except for a few TSB's which Infiniti has taken care of under warranty for us. Just had to rant a little more cause I really love this car except for the damn engine. Its a wonderful design and the interior does kick the hell outta the vettes but I
am not going to worry about the engine every time I nail it.

 

I started my own oil consumption test 2 days ago. I changed the oil in my 06Sedan, 6spd and was only able to drain approx 3 qts out of the engine. I found this to be really bad being that I checked the oil a week earlier and added a half of quart to be safe. Since our dipstick design doesn't allow for an accurate measurement. I'm going to test one more oil change and if it is still low then I will take it to Infiniti to begin the test. BTW my car only has
9,000 miles on it.

 

wasnt the VQ 1 of the 10 best motors

 

my pops just got the results back from his oil consumption test. after 700 miles he was down 2.5 quarts! granted he has a Z its the same motor. he has to take it back in on monday and they are gonna do some "surgery" as they called it.

 

for like 13 years straight

 

keep us posted

 

I'm in a similiar situation. I just performed the 3rd oil change on my '06 Sedan with AT, and was only able to drain about 3.6 qts of oil. The oil has about 3,200 miles on it, and I filled with 4.9 qts of Castrol GTX 10W-30 last time. Therefore, it burns about 1.3 qts of oil per 3,200 miles = ~2450 miles per qt. I hope, the engine consumption will decrease when it passes 10,000 miles (currently @ 8,500 miles). However, the previous oil changes, it was able to drain about 4.1qts.

I understand that the industry standard on oil consumption is about 1qt/1000 miles. But I'm a bit nervous about the longevity of this engine. Plus, it is a Nissan, it is supposed to run FOREVER.

Nelson

 

I think there has something to do with the low tension piston rings that are commonly in use today. I believe the low tension rings are used to reduce friction to improve fuel efficiency. However, when the rings are under high vacuum condition (ie. engine braking going down a decline), the rings don't allow sufficient pressure to control oil seepage = high oil consumption.

During the power and compression stroke, the rings are under pressure which will push the rings against the cylinder wall where sealing is the optimal.

I wonder, if other Japanese manufactures (Toyota, Honda, Subaru) has the same oil consumption problem with the low tension rings.

Nelson