I dont know if it matters, and it might be against a rule oo, (sorry if it is), but amsoil only sells through dealers. Which they gladly sign you up for, for a fee. Im a dealer, and local to amsoil. I just go down and pick it up. If you guys want anything let me know in a pm and Ill ckeck into it. Since this is only the second day Ive had my insight, Ill probably check into the amsoil by the end of the week. I run a lot of there stuff in a few other things.