Many small gasoline engines can be safely modified to run on natural gas or propane with a kit that replaces the carburetor and adds a regulator, providing a reliable alternative fuel source in ...

Hydrogen engines using water as fuel could be the end of EVs. Learn about the performance, environmental benefits, and ...

Pros: Quiet running, instant torque from electric motor, no emissions from the car, cost per mile is a ... Pros: No vehicle emissions other than water vapor. Fuel economy equivalent to about ...