AMSOIL Motor Oil Synthetic Oil

AMSOIL 5W-30 Signature Diesel Oil

Max-Duty synthetic exceeding API CK-4 for hard-working tow vehicles and fleets demanding longer drain intervals.

AMSOIL 0W-40 Signature Diesel Oil

Max-Duty flagship diesel synthetic in 0W-40 for extreme-duty applications with extended drain intervals.

AMSOIL 5W-20 DOMINATOR Racing Oil

Competition-grade synthetic 5W-20 for high-RPM race engines demanding maximum film strength.

AMSOIL 5W-30 LS European Oil (Diesel)

High-viscosity MS-grade synthetic for high-output European engines demanding robust shear stability.

AMSOIL 5W-40 Signature Diesel Oil

Top-tier Max-Duty diesel synthetic in 5W-40 with industry-leading soot control and extended drain capability.

AMSOIL 0W-20 Synthetic Diesel Oil

Ultra-low viscosity API CK-4 synthetic diesel oil for modern light-duty diesel applications requiring 0W-20.

AMSOIL SAE 30 Break-In Oil

Controlled-friction SAE 30 formula engineered to properly seat rings in freshly built engines.

AMSOIL 20W-50 Z-ROD Motor Oil

High-zinc 20W-50 for air-cooled classics and big-block muscle engines requiring maximum film protection.

AMSOIL 15W-50 DOMINATOR Racing Oil

Race-grade 15W-50 with exceptional shear stability for high-RPM naturally aspirated and forced-induction engines.

AMSOIL 10W-40 Premium Protection Oil

Synthetic 10W-40 for older gasoline engines and small equipment needing heavier-viscosity protection.