Discussion Starter · #1 ·
I keep an eye on this forum because you guys seem to be the most technically minded when it comes to synthetic oils. I was just curious if there's any more recent data showing which of the two is better. I read something a while back (a chart from Amsoil site?) that showed the Mobil 1 having a higher wear rating of some sort than the Synpower, but I don't think it was in the weights I'm asking about. I plan to leave the oil in for the normal change interval 8000 miles for my A4 2.8, so I want the best oil for a longer interval.