Use any oil that is API certified, and the correct viscosity (5W30, or 5W20).
Stay away from Amsoil!! It's way over priced, and all but 2 of their oil products ARE NOT API certified!!! The reason it's over priced is because Amsoil is a MLM (Multi Level Marketing) company......
Check this URL to see the only Amsoil oil products that are API certified (PCO, and XL):