Unless you drive a Wankel rotary, your combustion engine vehicle has pistons, and each of those pistons has three rings. Why is it always three?

There's no need to sugarcoat what bad piston rings can do to your engine. Those rather thin cast-iron or steel rings may look small and irrelevant to untrained eyes, but they play a vital part in ...

Almost every new car since the early 2000s has been using low-tension piston rings. Automakers have their fair share of reasons for doing so, including reduced frictional losses, improved efficiency, ...