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

Regulating heat and pressure inside an engine is necessary for its healthy operation. Piston ring end gaps play a vital role in that, but they can be easily overlooked as a minor measurement. In ...

There's more to piston shapes than you might think. Whether it's domed, flat, or dished, all pistons have their fair share of pros and cons when it comes to performance and efficiency. Understand that ...

An engine's displacement dictates power output based on the bore and stroke, while compression ratio influences how strong ...

For as long as internal combustion engines have existed, pistons have been round. This wasn't necessarily because circular shapes were optimal for performance. It was simply the easiest and most ...

Can stuck piston rings be restored without teardown? A 500,000-mile Valvoline engine test shows how deposit removal may ...

Compression is only one thing Hyundai wants to be able to adjust.