Cars & TrucksProduct HighlightsAsk AMSOIL
Why Does My Engine Knock? 3 Possible Explanations.
Do you hear an engine knocking sound when you hit the gas? It could be due to pre-ignition or detonation....
Synthetics remain fluid in cold weather to ease cold starts and improve wear protection.
What Motor Oil is Best for Winter? (And Other Cold-Weather Questions)