The guys at Muscle Car Review show you how to check engine compression with the latest tools. Check it out only at hotrod.com or the October 2011 issue of Muscle Car Review Magazine.

This turbocharged gasoline engine can switch compression ratios on the fly. Here's how it works—and how it achieves better power and efficiency.

Mazda’s new SkyActiv-X engine will go against every convention you thought you understood about gasoline engines. It’s supercharged, but for efficiency purposes, not to increase power. It has ...

Mazda's compression gasoline engine is promised to deliver 10 to 30 percent greater torque numbers than SKYACTIV-G engines, with Mazda planning to pair the new design with a supercharger.

A fundamental difference between gasoline and diesel engines is that a gasoline engine uses spark ignition while a diesel engine uses compression ignition. Before we delve deeper, let's understand ...

Owners of Nissan and Infiniti models with VC-Turbo technology have reported problems—stalling and engine failures. As a result, the NHTSA will take a closer look.