Novadude, I don't have time right now to dig into the past, but when I first came on this site, the UOA's were sucking. Pretty much all members at that time agreed on the same thing: Vavoline has a terrible additive package. OK, so just MAYBE they have changed, and perhaps Castrol feels bad about the whole lawsuit thing, but that was my first impression on Valvoline and still sticks to this day. Anyway, the was the source of the reply.