In USA or Canada, order by phone at: 1 (800) 956-5695 Important: Give operator referral # 1102880
AMSOIL Beats Other Engine / Motor Oils on the Dynometer
NOTICE: July 2013
We have an updated page that has newer test results for AMSOIL vs Castrol Edge, Lucas, Mobil 1, Pennzoil, Quaker State, Royal Purple and others.