The purpose of your engine is to compress fuel and air and then ignite it, creating heat energy that then makes mechanical motion. If your engine can't compress the air and fuel properly, the engine ...

Compression: An automotive term used by everybody, forever. Let's get into some detail and maybe develop a better understanding. Pressure, and more pressure: It's a must-have to produce power within ...

We earn commissions from purchases you make using links in our articles. Learn more. Every single car has valve stem caps, but let’s be honest—they’re all really boring. In fact, most cars come with ...