Porsche is betting on gas engines and aggressive cost cuts to pull itself out of one of the worst financial periods in its ...

Audi CEO Gernot Döllner says combustion engine platforms will continue evolving as markets move toward electrification at different speeds. The brand may delay a full EV transition while refining ...

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

CEO Gernot Döllner told Car and Driver that faltering EV sales and strong interest in gas are leading Audi to be more ...

Although most major car brands have embraced EVs with open arms, a few have remained skeptical. Toyota is probably the most steadfast in its resistance to electrification — the brand offers just one ...

DTNA 2027 engines lineup expands with Cummins B6.7 Octane, new X10 platform, and Detroit Gen 6 diesel engines.

Freightliner and Western Star models will offer a broader mix of gasoline, diesel and natural gas engines designed to meet EPA 2027 emissions standards.

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 ...

If you've even casually contemplated purchasing a Ram truck powered by a diesel engine in the last couple of decades, the name Cummins is undoubtedly familiar to you. The Indiana-based company has, ...

At TopSpeed, William Clavey is Editor-at-Large, where he focuses on authority and exclusive content, reviews, news articles, features, and opinion pieces all while sharing his passion for everything ...

Two-stroke engines have their uses, but they are seen as environmentally unfriendly today. But why do they have that reputation, and is it deserved?