Your gasaholic friends may not believe you, but feel free to tell them that diesels will soon be cleaner than current gasoline engines. It's not a trick-they'll have to be that clean if manufacturers ...

This episode is sponsored by: Learn more about the Circle K Fleet Card. Learn more about Clarience Technologies. The first functional diesel engine was tested in 1897, making the “heat engine” 125 ...

Diesel fuel still has a large role to play in achieving greater emissions reductions in heavy-duty trucks, experts said during a recent conference in San Francisco. Separately, they urged more in-use ...

Volkswagen promises significantly cleaner diesel engines by using regenerative diesel fuels. The CO2 emissions can be reduced by a whopping 95%. No word on the NOx emissions, though. The company ...

The diesel engine has undergone a significant evolution over the past two decades. Most of these changes were designed to reduce emissions and air pollution, but once early generation emission goals ...

A novel clean-burning engine combines gas and diesel fuel on the fly by blending the two within the combustion chamber. Tests by a University of Wisconsin-Madison engine research group headed by Rolf ...