Automakers recommend using genuine OEM engine oil for a reason that goes far beyond branding. These oils are developed ...

Engine oil turns black from a combination of combustion byproducts, heat oxidation, and detergent additives suspending carbon ...

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 ...