My only real problem with Amsoil: It's not just motor oil, it's a marketing scheme.
I use Mobil 1 - in large part because I can stop by WalMart and pick it up, and find it on sale.
I'm sure someone around here sells Amsoil - but I have no idea who it is. Truth be told: I've never actually seen an Amsoil product. Read a lot about it; seen the ads; but haven't seen the stuff anywhere.
Yeah, you can order it from their web site. One more thing to think of...
If the oil is so good, why can't they just sell the stuff someplace where I can get it conveniently?