Just wondering because i have heard the g35 coupes might have this problem.

 

I notice a little carbon build-up on my exhaust pipes but i think its because i baby my car too much and lug it around. I was told i need to run it up through the gears once a week after a lot of in town stop and go driving.

 

i believe all sports car have a tendency to burn a little oil , might want to wait for someone who knows more about it to answer your question in details...

 

My 03 Z has been in and out of the shop because the oil light comes on after 4 or 5K miles post oil change. It is definately burning oil. There is a guy is southern CA with the same problem, and they replaced his engine.

My dealer has me on an oil consumption test. I come in every 1K miles (starting this month) and if the oil level is low 4X in a row, I get a new engine.

I have heard of three people including myself who have this issue.

JB

 

We have seen a couple cars, including mine, leak oil around the valve cover. All it took was some tightning of those bolts to cure the issue. Be sure to check that as well.

 

I have almost 30,000 miles on my Z, and so far it has not burnt enough oil for me to notice.

I change the oil every 5000 miles, and am using synthetic or synthetic blend (usually Mobil 1). I never need to add anything between changes.

I have noticed some very slight accumulation of oil around the valve cover, but it hasn't amounted to even one drop yet (just a very slight film in a couple spots).

At this point, I am very satisfied and don't plan on making any changes.

On a side note, the carbon on the exhaust is normal, and not necessarily due to burning oil. It is most likely due to burning a slightly rich fuel mixture, like when running @ WOT.

-D'oh!

 

Did a recent trackday in the 350ZR. 200 miles up to the track, 100 miles thrashing on the track, and 200 miles back home. Didn't use a drop. Can't say the same for my buddy's Z06.

 

That's me. Details here:

http://www.350zmotoring.com/forums/s...&threadid=5501

Engine is replaced, I'm at about 150 miles on her. I plan to baby her for 500 then slowly start go to 4k or 5k then to 6k then to redline between 500-1200.

 

Just read your thread on this....Seems 5k between oil changes is a bit long? I'm going on my dealer's recomendation of every 3750 miles and I have the dealer do it. Only $20, and they can't ***** about it being done wrong somewhere else, or give me any warranty crap later on.

 

You misunderstood. 5k = 5,000 rpm during break in. Oil changes I did regularily at 3,000 miles. And, like you, I did all oil changes at the dealership. Hence, they knew I changed my oil religiously.

 

Sorry, I was talking about "jasonbokamper", who started the 350zmotoring.com thread. He mentions 5k miles between changes. My bad.

 

Oh, then I misunderstood. LOL. My bad.

 

5K miles between oil changes should not mean that it is OK that the car is burning oil. This isn't a 1975 Ford...it's a brand new car.

When I brought the car in the first time, the dealer said it had NO oil in it whatsoever. Do I believe them? I dunno. But this thing shouldn't even burn a quart in 10K miles, much less 4 or 5 quarts in 5k.

Sorry to rant...but after $30,000 and:

burning oil
greasy windows
drifting steering
feathered tires
rattling interior
clicking seats

...I have the right to be a little fussy!

I love this car, but it sure has been a headache.

JB