What seems like a routine maintenance task can quietly cause severe and irreversible engine damage if done incorrectly.

Sure, high-performance engines burn fuel. But they wouldn’t be able to do it for very long if it wasn't for oil of varying viscosities that lubricates crankshafts, cams, bearings, rods, pistons, rings ...

Even as cars become increasingly sophisticated, motor oil remains the engine’s lifeblood, and caring for this fluid is vital. Fortunately, this is a rather simple task—and your car’s onboard computer ...

Although engine oil enters cars as a yellow liquid, you'll almost always find its color to be brown or black when it's being ...