Why do hybrid engines sacrifice power for efficiency? The Atkinson cycle makes every drop of fuel go further.

Octane really is just a measure of how well fuel resists lighting itself under pressure. Some engines need to run on fuel that that offers more resistance than others, specifically the kind that run a ...

The amended rules open the way for vehicles designed to run on higher-ethanol blends, but conventional petrol cars certified ...

Any certified gearhead knows that diesel engines do not use spark plugs. But why not? If power in an engine is created by combustion or explosion of flammable liquids, won't a spark plug in a diesel ...