While fresh oil is generally transparent and amber colored, black oil may mean it's time for a replacement and frothy oil can ...

It might seem like a small detail, but the color of your engine oil can speak volumes about what’s going on inside your car.

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 ...

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 ...