I'd recommend going over a car board - I'm a member of two (fordvschevy.com and a local mustang club) and asking them
but if you want to take my word - then Mobil1 is probably the best oil you can get that's available anywhere. Some guys like Amsoil or redline, but they are more expensive and harder to find. There have been many threads on the issue (in the car forums) and the conclusion always comes to Mobil1 - I can even send you research/independant studies to back up my position
Bottom Line - Mobil1
