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 ...

For most drivers, an oil change is a quick, hassle-free service that typically puts you out no longer than an hour and costs you (give or take) a hundred bucks. But even if you're perfectly on top of ...