I did an oil change on my recently acquired 2006 G35 coupe about 2000 km ago. I checked the oil level this week and noticed that it was nearly at the L mark on the stick. I added about half a quart until it reached the upper end of the stick towards the H mark. This seems to me like rather excessive oil consumption. I know that the Nissan VQs in the manual transmission equipped G35s were rather problematic but I bought the automatic knowing it would be impacted by the bad engines that those had. The car has just over 100k km.
Am I being paranoid or is it reasonable to expect this level of oil consumption with this engine? I did a transmission fluid change today and there were no visible leaks underneath or on the belly pan. I'm currently using Castrol Edge 5w-30 but I've read that others have switch to the Castrol 0w-30 (Euro formula) to reduce the consumption. Am I better off using a higher mileage blend and shortening my service intervals?
Am I being paranoid or is it reasonable to expect this level of oil consumption with this engine? I did a transmission fluid change today and there were no visible leaks underneath or on the belly pan. I'm currently using Castrol Edge 5w-30 but I've read that others have switch to the Castrol 0w-30 (Euro formula) to reduce the consumption. Am I better off using a higher mileage blend and shortening my service intervals?