Head Gaskets: Understanding a Critical Engine Component
The head gasket is one of the most important parts of an engine. Its role is to seal the
Devoted to Protection™
Devoted to Protection™
Keep the car you love safe with 75% more engine protection against horsepower loss and wear than required by a leading industry standard*, extending the life of vital components like pistons and cams.
* Based on independent testing of AMSOIL Signature Series 0W-20, in ASTM D6891 as required by the API SN specification
World-Class Wear Protection
See why car enthusiasts, engine builders and racers also depend on AMSOIL fully synthetic oils to provide world-class wear protection for their vehicles.
We rigorously test our products to ensure you receive the highest quality synthetic lubricants on the market. AMSOIL Signature Series Motor Oil was subjected to testing to measure its ability to prevent wear, deposits and more.
The Proof
Your bearings shoulder the burden whenever you tow, haul or stomp the gas. AMSOIL delivers powerful protection for bearings and other critical components. An independent lab compared Signature Series head-to-head against a leading competitor in a 100,000-mile test. Signature Series provided far superior wear protection and kept bearings looking like new.* Upgrade to AMSOIL performance and drive with confidence.
*Testing conducted in an independent lab using AMSOIL Signature Series 5W-30 Synthetic Motor Oil and a leading synthetic-blend 5W-30 motor oil in Ford F-150 trucks with 3.5L twin-turbo engines.
Extended Protection
AMSOIL synthetic oils are hand-crafted for those who live for peak performance and demand the best protection – so you can continue to enjoy your vehicles to the fullest.
AMSOIL Signature Series Synthetic Motor Oil:
- Fights Wear: 75% more engine protection against horsepower loss and wear.*
- Battles Sludge: AMSOIL Signature Series Synthetic Motor Oil has 50% more detergents* to help keep oil passages clean and promote oil circulation. It provides 90% better protection against sludge.*
- Fights Viscosity Breakdown: AMSOIL fights viscosity breakdown better than the competition,* providing superior protection of pistons, cams and bearings.
Latest News
Two-Stroke and Four-Stroke Engine Lubrication Differences
Internal combustion engines convert the chemical energy in hydrocarbon fuels into mechanical power through the compression and combustion of
An AMSOIL Aerosol for Almost Anything
AMSOIL is known for lubricants that provide superior protection for internal engine parts. Did you know that AMSOIL also
A Closer Look at Grease
Grease is a solid to semi-fluid lubricant composed of a thickening agent dispersed in a liquid lubricant. It may
The Easiest Way to Keep Your Vehicles Clean
AMSOIL Mudslinger® provides an easy, spray-on, non-stick layer of armor that protects surfaces against UV rays and helps prevent
There’s more to lubrication than simply reducing friction.
I think most people have an idea of what lubrication is and that it is required to keep moving
