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GM dexos R Raises the Motor-Oil Bar for High-Performance Engines

News

GM dexos R Raises the Motor-Oil Bar for High-Performance Engines

AMSOIL Signature Series already outperforms the new motor oil specification.

January 30, 2023

What Motor Oil is Best for Winter? (And Other Cold-Weather Questions)

What Motor Oil is Best for Winter? (And Other Cold-Weather Questions)

Synthetics remain fluid in cold weather to ease cold starts and improve wear protection.

December 2, 2021

What Are Piston Rings?

What Are Piston Rings?

Piston rings seal the combustion chamber, keeping combustion gases in and oil out. Properly working piston rings are vital to...

February 16, 2021

What’s the Best Synthetic Motor Oil? How to Compare

How To

What’s the Best Synthetic Motor Oil? How to Compare

Want the best synthetic oil for your engine? Many companies say they have the best, but we offer proof.

February 19, 2020

Front end of a yellow Ford GT parked on grass

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