6X Better Protection

Big diesel power places stress on bearings, pistons, cylinders and other components, which can rob your engine of power and shorten its life. AMSOIL delivers powerful engine protection for critical components so you can harness the full power and potential of your diesel with confidence. How good is it? In 200-hour, head-to-head testing against a leading diesel oil, AMSOIL provided long-lasting protection and kept cylinder liners looking like new. What good is all that power if your oil can’t handle the load? Give your diesel the protection it needs with AMSOIL synthetic diesel oil.