Postby IanH » Fri Mar 29, 2013 8:35 am
Ok, Well let me say when mine was lower mileage it would use a lot more Oil if I drove it fast on the freeway. This improved over the years. Even with the small leaks it now has, Oil cooler ( fixed once already) and maybe valve covers, its still better at 105K than at 25K when I purchased it.
Others have carefully documented Oil consumption on the VQ35 engine from new and it continued to drop ie get better, as the engine went over 60K miles. ( that's as far as the record went for that guy.)
So although 2 quarts is a lot in 1800 miles If you have been driving it harder and faster that would account for some of your consumption.
Time to check for Oil in the intake behind the PCV connection I think.