Horse Powertrain, a joint venture between Renault, Geely, and Aramco, has unveiled an innovative hybrid engine that promises to push the boundaries of fuel efficiency.

LAS VEGAS--(BUSINESS WIRE)--Achates Power, Inc. (API) showcased at ACT Expo what has been demonstrated as the cleanest and most efficient internal combustion engine (ICE) architecture to date.

Rolls-Royce Successfully Tests UltraFan Engine Tech Using 100% Sustainable Fuel UltraFan gas turbine engines hold the promise of 10% efficiency improvements compared to the world's most efficient aero ...

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 ...

Rolls-Royce has completed the first ground tests on its massive UltraFan engine, claiming it's at least 10% more efficient than any other large aero engine in service today. This carbon/titanium ...

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 ...

Modern diesel engine development has increased engine efficiency and decreased NOx and particulate matter emissions. This ...

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 ...

The fuel economy of an aircraft is an assessment of the aircraft's transportation energy efficacy. Enhanced fuel efficiency is achieved through improved aerodynamics, weight reduction, and the ...