blackandwhite

iTrader: (3)

I don't know what's wrong. I have a VG 5spd. I change my oil every 3000 miles and I use Mobil 1 synthetic 10W30 and Nissan OEM filters. But about 1500 into the change, the oil is black, and half of it is gone. But there are no leaks, so I must assume that it is burning off somewhere. What would be the best things to check out.

blackandwhite

iTrader: (3)

bump

DanNY

iTrader: (14)

do u see smoke out of your tailpipe? blue smoke?
do u see oil in the coolant?

it can be a number of things.

blackandwhite

iTrader: (3)

NO oil in the coolant, or vice-versa. I think it's burning away some how.

Jeff92se

iTrader: (82)

Check for leaks

brubenstein

Valve guide seals

DanNY

iTrader: (14)

if that's the case he'll see smoke during start up...or the first few secs of it right? he said no smoke.

blackandwhite

iTrader: (3)

But I do get a lifter noise (tap,tap,tap,tap,tap) when I first startup for about 2-3 secs, then it goes away.