For vehicles that use internal combustion engines, oil is a vital component. It's responsible for lubricating the engine's internal moving parts, like the crankshaft and camshaft(s) and preventing the ...

This may sound like something out of the original "CSI: Crime Scene Investigation" TV series, but you can tell a lot about engine health by pulling out the dipstick, reading the oil level, and ...

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 drained. Here's why.