It's not lab test bragging either; the robust performance of AMSOIL's trans fluid was proven during severe-service field testing. To validate the expanded service life recommendations, AMSOIL ...

The 100% synthetic motor oil is designed to provide engine protection for increasingly demanding modern engines.

SUPERIOR, Wis. — Amsoil Inc. has launched the Amsoil Signature Series 0W-16 100% Synthetic Motor Oil, primarily for Toyota and Honda applications calling for a 0W-16 viscosity. Amsoil Signature Series ...

AMSOIL has launched a new formulation of its top-tier Signature Series Synthetic Motor Oil. Built upon a solid foundation of ...

SUPERIOR, Wis. — AMSOIL Inc. has launched a new formulation of its top-tier Signature Series Synthetic Motor Oil. The AMSOIL Signature Series Synthetic Motor Oil provides 75 percent more engine ...

The benefits of using synthetic motor oil versus the use of conventional petroleum motor oil are well known and have been detailed here in 4WHEEL DRIVE MAGAZINE many times before. So why haven't you ...