What Causes Engine Oil Oxidation?
Engine oil oxidation can cause deposits, sludge and other performance problems. Synthetic motor oils offer better oxidation resistance.
What Causes Motor Oil Contamination?
Motor oil contamination is the result of chemical changes to the oil, in addition to the accumulation of dirt, fuel,...
What Are Piston Rings?
Piston rings seal the combustion chamber, keeping combustion gases in and oil out. Properly working piston rings are vital to...
How Much Oil Does My Car Need?
Find out how much motor oil your car needs using the AMSOIL Product Guide. It's fast, free and convenient. Find...
Which Car Oil is Right for my Vehicle?
When deciding which oil to use in your car, ensure you use the correct viscosity of oil that meets the...
Additives in Motor Oil: Everything You Need to Know
Additives in motor oil perform two critical functions: lessen destructive processes and enhance the beneficial properties of the base oil....
Do Engine Oil Additives Work?
Our testing revealed red flags with two leading oil additives. Find out if engine oil additives really work here.
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A Beginner’s Guide to Motor Oil: What You Need to Know
Motor oil seems simple. You pour it in your engine and drive away. But motor oil is far more complex...and...
How Start-Stop Engines Challenge Motor Oil
Start-stop cycles in equipped engines can triple compared to traditional engines, increasing the likelihood of bearing wear.
What’s the Best Oil for Turbo Cars?
Industry testing shows that AMSOIL delivers excellent protection for turbo cars, limiting deposits on the turbo bearing and shaft. See...
