The next time you pull into a gas station, you might think fuel efficiency is just about the size of your engine or how fast you drive. The reality is far more complex and fascinating. Modern vehicles ...

Modern engines deliver more power from less metal, sip less fuel, and meet emissions rules that would have seemed impossible a generation ago. Yet owners are discovering that this new efficiency often ...

Every little bit of efficiency a fleet can squeeze out of engines can go a long way in maintaining a healthy profit margin. Even for fleets that spec the latest in aero kits, low rolling resistant ...

In 2017, Mazda announced its "Sustainable Zoom Zoom 2030 Vision," which promised to "perfect an internal combustion engine that produces fewer carbon dioxide emissions." Over the next five years, ...

In America, the average mpg of a semi truck sits firmly in single-digit territory. Efficiency improvements mean that today's trucks now average around seven mpg, but some states still see trucks ...

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 ...

Honda has announced it is developing two new four-cylinder hybrid engines operating on the Atkinson cycle. These engines will have a new front-drive unit and an integrated cooling system. The ...

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.