Every car engine has quite a few details, ranging from cylinder count to compression ratios. How does changing the ...

Apart from the very curious, not many people ask why diesel engines, compared to gasoline, run higher compression ratios. The argument is reasonably straightforward and starts with fuel ...

A.Here's a pressure-volume diagram for a combustion engine. Although rough, it is an approximation of the so-called air-standard cycle. '' Point (a) is at atmospheric pressure, after which the air is ...

What makes a diesel engine different to a regular gas engine, and is one better than the other?

Gasoline and diesel engines are very different. The former rely on spark ignition while the latter use compression ignition. Diesel engines typically run at much higher compression ratios than ...

Mazda is first with plans for a compression (diesel) engine that burns gas. The SkyActiv-X 2019 Mazda will get 20 to 30 percent better fuel economy than a gasoline ignition engine. Share on Facebook ...

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?