I have a STRONG opposition to amsoil. I haven't had a single vehicle that hasn't overheated on that sludge. I took my wife's LS460 (toyota, i know, i know) in to have the oil changed (i refuse to work on it), and after 3,000 miles that amsoil garbage had her cam pistons and crank shaft all out of alignment, and her overhead coils had about 60% wear on them. The car ran about 14% hotter than it does with Royal Purple. I ran amsoil back in my Pathfinder back in 2002, and after one oil change with amsoil I pretty much had to rebuild the lower block.
On another note: Royal Purple was founded in Humble, TX about two hours from where I live now. That's a Texas oil, boy, none other like it in the world. Royal Purple all the way!
Also, were you wandering, or wondering?