You can’t buy better protection for your hard-working diesel truck than AMSOIL synthetic motor oil. Whether you want the fuel economy benefits and ultra-cold temperature protection of a diesel-formulated 5W-30 or the tried-and-true protection of a 15W-40, you just can’t beat AMSOIL synthetic motor oils.

Numerous tests have proven that AMSOIL maintains its protective TBN and viscosity while petroleum products rapidly lose both. More to the point, AMSOIL keeps engine wear rates low, an important factor in ensuring long engine life.

AMSOIL Synthetic Transmission Fluids and Gear Lubes

AMSOIL Synthetic Automatic Transmission Fluid and Gear Lubes deliver maximum power and fully protect hard-working drivetrains. Synthetics deliver maximum power because their molecular structure is designed to reduce friction, a big power-eater. They protect best, even in temperatures that gel or fry conventional lubes. Protection in extreme temperatures is critical, given the incredible drivetrain heat generated by heavy-load operations and the temperature extremes in which diesels often work.

AMSOIL Transmission Fluid and gear lubes provide easy, dependable coldtemperature shiftability in a fraction of the time required by conventional fluids. They actually reduce high lube temperatures to optimal levels, and outlast ordinary transmission fluids and lubes.

Gear Lubes

AMSOIL Oil and Air Filters

AMSOIL Synthetic Grease

AMSOIL synthetic automotive greases are extreme pressure fortified NLGI #2 GC/LB products. Each offers outstanding wear and extreme pressure protection, load carrying capacity, friction reduction, low temperature pumpability, thermal stability, storage stability, oxidation inhibition, rust and corrosion inhibition, water washout resistance and extended service life.

Other AMSOIL Products