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.

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

When you take your vehicle in for an oil change — or change you oil yourself if you're so inclined — you probably don't give much thought to what's in the fluid being drained. It might not occur to ...