10W-40 (AMO)
Amsoil Premium Protection 10W-40 Synthetic Motor Oil. For use in both gasoline and diesel engines. Offers multi-functionality and wear protection. Ideal for applications where the extra protection of a higher-viscosity oil is desired. Excellent for motor homes and older vehicles, as well as…
20W-50 (ARO)
Amsoil Premium Protection 20W-50 Synthetic Motor Oil. For use in both diesel and gasoline engines. Ideal for applications where the extra protection of a higher-viscosity oil is desired. The higher viscosity may help reduce motor oil consumption in equipment experiencing higher than normal oil…