I've turned into a Castrol guy, but concensus here seems to be M1 0-40 for the MBs.
What I wanna know is, do you have a 355? And where are the pics?!?! The 355 is my absolute favorite car of all time, and always will be. It started a whole new design language for the automobile, and nothing else has the refined yet brutal styling those body lines contain. Oh, and a 5 valve 8,500 RPM V8 never hurt either!