How engine design has evolved to boost fuel efficiency, and where it's going from here.

The U.S. AWACS aircraft are excellent candidates for re-engining since the NRE and risk are minimal and significant improvements in fuel efficiency, operational capability, and engine reliability, ...

Chrysler's HEMI engines have been around since the 1950s, but they were used as early as 1905 by car manufacturers like Pipe. Over time, these engines have become an appealing choice for car ...

Spark plugs are pretty crucial to internal combustion engines, but can swapping old plugs for new ones really improve your ...

Cummins is expanding its Forever Rising Tour, a traveling exhibition designed to bring its latest heavy-duty engine platforms ...

The year 2027 will feature the most significant emissions regulations the heavy-duty trucking sector has seen since 2007. If fleets haven’t already, they should begin planning for these changes. “It’s ...

"The goal was a 100% freight efficiency improvement over our 2009 Kenworth T660, which at the time was arguably the most fuel-efficient truck in the industry," says Kenworth GM Jim Walenczak in a ...

Finnish manufacturer Wärtsilä introduced an engine back in 2015 that was so good, it snagged a Guinness World Records title for being the most efficient four-stroke diesel engine shortly after its ...

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.

This has been discussed before on Ars, such as at https://arstechnica.com/civis/threa...ost-efficient-heat-pump-in-the-world.1501605/, and https://arstechnica.com ...