A mechanic cracked open a neglected engine and what he found was brutal.

Push your muscle car to the limit, and sooner or later you may run into some oiling issues. Since we've already covered basic oil system tech in the past, we decided to focus our efforts on hard-core ...

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 ...