Results for Motor Oil

From various viscosities and grades to conventional or synthetic formulations, oil filters, and beyond, find out the facts about motor oils.

Motor oil color can tell a lot about its condition. Black motor oil, for example, usually means the oil is doing its job.

Motor oil contamination is the result of chemical changes to the oil, in addition to the accumulation of dirt, fuel, metal particles and other contaminants.

The primary functions of motor oil are to reduce wear and friction. But motor oil must do more than that for your engine to run well and last as designed.

Motor oil deteriorates and becomes unfit for service due to accumulation of contaminants in the oil and chemical changes (additive depletion and oxidation) in the oil itself.

When you change your oil, you'll see a variety of weight options. But what does 5W-20 mean? Learn more about oil weights and which is right for you.

There are many choices when it comes to picking the appropriate oil for your car's engine. Our guide breaks down your choices to help you in the quest to change your oil.

There are many choices when it comes to picking the appropriate oil for your car's engine. Our guide breaks down your choices to help you in the quest to change your oil.

Changing your oil regularly can help keep your engine running smoothly, but what kind of oil does your vehicle need?