[Stay on top of transportation news: Get TTNews in your inbox.] Advanced researchers and engine makers say the internal combustion engine’s ability to be more efficient and run on greener fuels means ...

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.

Astron aerospace has shown a partial prototype of a new rotary combustion engine it claims runs at an extraordinary 60% thermal efficiency, burning totally clean with zero NOx emissions and nothing ...

Toyota is revolutionizing the automotive industry with its groundbreaking W-Piston Free-Piston Engine, which achieves an impressive 50% efficiency. This innovation not only promises enhanced ...

Nissan claims to have made a major efficiency breakthrough in efficiency for an internal-combustion in its e-Power hybrid system. The automaker announced Friday that it had reached 50% thermal ...

Mazda’s SKYACTIV-Z project has highlighted the automaker’s desire to continue innovating gas-powered engines while other legacy manufacturers accelerate investments into electric powertrain ...

Recognizing the importance of internal combustion engines to the nation’s energy security and a need to mitigate their negative environmental aspects, including greenhouse gas emissions, researchers ...