Regardless of whether it burns gasoline or diesel, your internal combustion engine works by igniting a mixture of fuel and air to create power. To do so effectively, it must reduce the detrimental ...

Engine oil turns black from a combination of combustion byproducts, heat oxidation, and detergent additives suspending carbon ...

Modern engine oil does more than lubricate internal parts. It absorbs heat from the pistons and cylinder walls, working in conjunction with the cooling system to maintain the engine at the required ...

A mechanic cracked open a neglected engine and what he found was brutal.

Add Yahoo as a preferred source to see more of our stories on Google. As engine standards change, the oil that protects them has to change too — especially for drivers buying new trucks in the next ...

These engine parts are from a teardown of an engine using an experimental low-HTHS viscosity oil. A visual inspection shows no noticeable differences in wear between it and the higher-viscosity oil.

Car's engine is the heart of the vehicle. Caring for it not only makes it function better but also helps avoid costly repairs ...