The first step in any repair job, especially to engines, transmissions and other traditionally oily components, is to clean away all the accumulated grease and gunk. Oil and grease, baked by engine or ...

Engine oil turns black from a combination of combustion byproducts, heat oxidation, and detergent additives suspending carbon particles in the fluid. Black oil is not automatically a sign of a problem ...

Under normal circumstances, most modern engine oil and gasoline brands work fine on their own to keep your engine running smoothly. But there may be cases where even the best of them could use a ...

Keeping a combustion-engined car in shape requires some effort. Part of that is changing the motor oil and filter on a regular basis to lubricate the moving metal components and keep the engine in ...

My Mitsubishi Montero has had a fun year of hauling dogs and camping around New York’s Hudson Valley. Now that cold weather is here and snow is a reality soon, I’m pulling it off the road to give it a ...

Add Yahoo as a preferred source to see more of our stories on Google. Oil stain on concrete under a car - Nongasimo/Getty Images If you've ever spotted a dark, greasy blotch under the car in your ...