hey guys,

i have a 2004 g35 and I am constantly burning oil... seems like 1/4 a quart every time i fill up for gas...

i am running 10w-30 Mobil one and change the oil every 5k miles.

i have no idea why this is happening and any advice would be great.



p.s. im looking into getting new rims and i have a twilight blue g35

 

How many miles do you have on your car? See any smoke out the tailpipe on heavy acceleration?

Which Mobile-1 are you using? Regular, Extended performance, High Mileage?

That's quite a bit of oil to be burning.. probably equivalent to a quart every 1000 miles or so. I wouldn't sink any money into the car on new rims unless you're willing to also accept the fact that a new motor is possibly in the future and only spend money on the car if you plan to keep it regardless.

 

Do you have any external oil leaks contributing to your oil loss. The valve covers are a common area for oil leaks.

 

i don't notice any external leaks. and mobile 1 10 w-30 high milage and im sitting right around 120000 miles

 

THREE issues exist for the VQ35 series.

(1) some of the oem rings allowed a fair amount of oil to run around (motor drip down test fail = replace rings or block)
(2) The PCV system is not that great and spits a lot out to be then burned in the cylinder (fix buy oil catch can to keep your plugs dry and not PING the engine at 1500-2500rpm)
(3) of all the damnedest things i have heard, my Nissan Mechanic says that the valve covers and gaskets don't breath right and cause high crank case pressure that can push oil past the rings. (fix by new valve covers.. reportedly... which i have never tried...)

Unless you are blowing actual blue smoke, it will be cheaper-ish to keep adding oil. Since your burning about 1/4 to 1/2 for each week (rough guess) just get the Group-3 semi synthetic and add it as needed, or go full group-3 dino oil.