IRVINE, Calif.—Despite rumors to the contrary, the internal combustion engine is far from dead. Recently we’ve seen several technological advances that will significantly boost the efficiency of ...

Yesterday at the Tokyo Motor Show, Mazda released new info on its highly anticipated compression-ignition Skyactiv-X engine. It's all a bit daunting if you're not an engineer, but helpfully, Mazda put ...

Diesel engines are different from gas engines in numerous ways, including their use of high compression ratios. Here's why ...

Diesel engines do their hardest work in the toughest jobs, from highway semis to construction equipment, and the reason they ...

We love ourselves a good oddball engine, and tiny, scrappy Mazda certainly must be responsible for more such engine concept patents per market-capitalization dollar than any other. We just discovered ...

Formula 1’s next-generation power units are not even on the grid yet and they are already reshaping the competitive landscape ...