Specialized Lubricants Engineered for What You Drive and How You Drive
AMSOIL engineers lubricants to maximize performance and protection in a wide array of vehicles.
Why Buy Signature Series?
AMSOIL Signature Series 100% Synthetic Motor Oil is engineered for enthusiasts seeking maximum protection and performance.
Why Motor Oil Deteriorates
The accumulation of contaminants and chemical changes in the motor oil eventually make it unfit for further service.
Ram Truck 500K-Mile Engine Teardown Showcases AMSOIL Protection
“I’d always known AMSOIL was good, but this proved it. AMSOIL is the best.”
Top 5 Motor Oil Myths Busted
Motor oil myths abound. Here are five of the most persistent along with our myth-busting facts.
Synthetic vs. Conventional Oil: The Definitive Guide
Find out everything you need to know about synthetic vs. conventional motor oil.
What is the difference between synthetic and conventional oil?
Motor oil, whether synthetic or petroleum-based, consists of molecular chains of hydrogen and carbon atoms, referred to as hydrocarbons. Petroleum...
