An engine flush will often improve engine performance, but you may want to skip it with old,...
Signature Series
Motor oil myths abound. Here are five of the most persistent along with our myth-busting facts. Changing...
The Sequence IIIG Engine Test (ASTM D7320) is designed to evaluate automotive motor oils for oil thickening,...
Oil life monitors are great tools, but they have limitations. Here’s everything you need to know about...
Want the best synthetic oil for your engine? Many companies say they have the best, but we...
Changing your oil every 3,000 miles is a practice passed down for generations. The origin likely stems...
AMSOIL synthetic motor oils meet or exceed the latest performance specifications. Article based on ‘the INSIDE TRACK’...
GM dexos R Raises the Motor-Oil Bar for High-Performance Engines
AMSOIL Signature Series already outperforms the new motor...
Amsoil provides better cold cranking viscosity, helping improve wear protection or engine components at startup. If you...
1Based on independent testing of AMSOIL Signature Series 0W-20, in ASTM D6891 as required by the API...
