Researchers in Germany have recently unveiled a hydrogen-powered engine that could challenge diesel in ...

Researchers studying a hydrogen combustion concept built around argon gas say the technology could reach 60% thermal ...

Toyota recommends 87 octane for the 2025 Prius, but one owner hit 61.1 MPG using 91 premium. We analyze Jason Black’s ...

Electric concept cars seem to steal the spotlight at auto shows these days, with their flashy futuristic looks and promises of amazing battery range. And many if not most cars will get some form of ...

Geely now holds a Guinness World Record for thermal efficiency, with its new i-HEV system rated at 48.4%, according to a report from Car News China. That figure represents how much energy from fuel is ...

The days of internal combustion engines are numbered. Unfortunately, the exact number is constantly shifting, with regulators moving the goalposts so often that manufacturers are left scrambling to ...

A computer generated power stroke of an internal combustion engine, following ignition - Pathompong Thongsan/Getty Images When comparing engine specs for nearly any combustion engine automobile, we ...

Every fleet strives to achieve two things when it comes to engines. The first is to maintain efficiency in order to reduce operating and service costs. The other is to ensure the longest possible ...

Pratt & Whitney thinks the aerospace industry might need a bit more time to achieve a broad goal of squeezing at least 20% more efficiency out of the next generation of narrowbody aircraft engines.