Add Yahoo as a preferred source to see more of our stories on Google. Gasoline engines usually run on the Otto cycle, the standard four-stroke and two-stroke combustion process that has been powering ...

The World's First Production-Ready Variable Compression Engine Infiniti's has developed the first variable compression ratio engine which will ever be used in a production vehicle. The compression ...

You might have heard about high compression ratios, but what exactly are they, and what kind of effect do they have on an engine's fuel efficiency?