A hydrogen engine using an argon-based cycle reaches more than 60 percent efficiency while operating emission-free.

Trying to mix gasoline and diesel in most engines will only lead to problems in the long run. But engineers have found a way ...

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

Researchers at Otto-von-Guericke University Magdeburg have unveiled a closed-loop hydrogen engine with efficiency above 60%, potentially rivaling diesel in heavy-duty applications. The Argon Power ...

Gas prices are rising — don’t overpay. Avoid these 15 common gas station mistakes that could be quietly costing you money at ...

The ongoing military conflicts in Iran and the Middle East have caused gasoline prices around the world to rise since the ...

Jeeps have a reputation for being tough and comfortable on and off the road. Over several decades, though, even they've made ...

Simple changes to driving habits can save gas ...

The Nissan Frontier is holding its own with a V6 engine in a sea of turbocharged and hybridized engines, but is it efficient, ...

Rolls-Royce and easyJet have completed ground testing of a modified Pearl 15 engine running on 100% hydrogen at full takeoff ...

Shell Starship is continuing to demonstrate fuel efficiency technologies under real operating conditions as it travels the ...

Check out these three affordable, fuel-efficient, and surprisingly fun-to-drive used cars that return a combined 35 mpg or ...