Well after a few years of Mobile 1, the motor oil in the family cars was changed to Amsoil. We have been running 0w-30 and 5w-30 in 2 BMW's, 1 Subaru and a Ford Ranger with no issues for about a year now. Amsoil was choosen for it's performance characteristics, ability to protect from engine wear, and a slight underdog factor.
What are you running and why?
I'm not an oil rep, just a crazed BMW owner
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