Based on years of use and known test results there are only two oils I would ever considerer using. Amsoil and then a distant second Mobil 1. Anything else I would consider a waste of my time and money.

Check out Amsoil website at www.amsoil.com they do several API comparison test with various other brands including Mobil 1.

Tom

Those who would give up essential liberty to purchase a little temporary safety deserve neither liberty nor safety. Benjamin Franklin, US author, diplomat, inventor, physicist, politician, & printer (1706 - 1790)