As the Republican campaign to halt ambitious electric vehicle policies mostly spotlighted the cars and light trucks in ...

Toyota claims that it would be too expensive to build a diesel engine that meets the U.S.' emissions standards, although it ...

Benz & Cie. revealed the first diesel truck in 1923, with the designation of Benz Type 5K3, powered by a precombustion engine ...

Back in the good old days, when trucks were as aerodynamic as a fridge and fuel was cheap, if you wanted the toughest, most ...

While sales of light-duty EVs have hovered around 10% of the national new vehicle market for the past two years, the ...

A look into the exhaust gas recirculation, or EGR, valve - an important piece of the automotive emissions system.