Engine oil color reveals its age, contamination level, and operating condition. Fresh oil is amber or light brown. Oil darkened to black but still translucent after a few thousand miles is normal.

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 ...

When it comes to car maintenance, it can be easy to overlook oil inspection even when you have the best intentions. At a glance, oil checks might seem minor, but skipping out on this process can end ...

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 ...