AMSOIL delivers outstanding protection in severe service.

Signature Series improves startup protection.

Signature Series delivers powerful protection.

Signature Series fights wear.

Signature Series protects against LSPI.

Signature Series guards turbos.

Signature Series cleans.

Signature Series resists viscosity increase.

Signature Series keeps pistons cleaner.

XL resists oil breakdown.

OE Protects against wear.

AMSOIL synthetic diesel oil delivers more wear protection.

DOMINATOR protects better.

Synthetic Diesel Oil reduces oil consumption

Signature Series keeps turbos clean.

Signature Series protects against rust.

Signature Series fights wear.

Signature Series excels in extreme cold.

AMSOIL resists viscosity breakdown.

AMSOIL delivers superior rust protection.

AMSOIL fights water contamination.

SABER Professional fights carbon.

AMSOIL delivers confident clutch feel.

INTERCEPTOR fights wear and deposits.

99% efficiency at 20 microns.

Preserves horsepower and performance.

P.i. increases horsepower.

Superior cold temperature protection.

AMSOIL improves lubricity.

AMSOIL fights corrosion.

AMSOIL improves stability.

AMSOIL resists corrosion.

AMSOIL resists cavitation.

Independent ASTM D5800 testing published by AMSOIL shows Signature Series controlling oil volatility 38% better than the Mobil 1 product tested and 17% better than the Royal Purple product tested. Results apply to the specific products and formulations shown.