i have been using Mobil 1 in all of my cars and trucks for the past five years and always believed it is some of the best motor oil out there. I read a lot around the Oil test board and have seen mixed emotions on the new SS formulation. Even compared to the TriSyn formulation. What is your opinion of the M1 SS?? Other than M1, I could also see using AMSOIL which is not that much more money and seems to test consistently better.