quote:4. AMSOIL lubricants that have been contaminated after leaving the AMSOIL INC> premises due to improper handling, storageor through equipment deficiencies, including filtration, in which an AMSOIL lubricant has been installed.
Amsoil sure has an out with this clause, you might have to go after UPS or FedEx, the problem here is that you have already opened the bottles and thrown them away.
I do not need to look at the other Oil Companies Warranties, I have enough confidence with the oil that I use so I am not even worried about there Warranty.