Some of the best motor oil brands have been refining their products since the internal combustion engine was first created and have had long and illustrious histories in motorsports, flight ...

If you've ever examined the packaging on your engine oil, you may have noticed a letter C among all the other information.

High Detergent? High Definition? Howdy Doody? Just what, exactly, does it mean when the label on your vehicle's motor oil ...

“The old belief that if you start an engine on one brand/type of oil that you should stay with that oil is really part of a long-standing myth,” says Mark Betner, manager of heavy-duty engine ...