Diesel aircraft engines promise lower fuel burn and cheaper operating costs at a time when every gallon and every kilogram ...

Cummins engines have earned a bit of a cult following over the decades — and for good reason. In the U.S., they're the iron workhorses found in everything from pickup trucks to massive semis, and they ...

Diesel engines do their hardest work in the toughest jobs, from highway semis to construction equipment, and the reason they ...

There Was A Time When Frank Hart's Oil-Burning Corrado TDI Coupe Would've Been Ridiculous, But Now It Doesn't Sound So Bad Within any group of brand-loyal diehards, there are always smaller sects who ...

January 10, 2007 While we love concept cars, and we’re enamoured with futuristic power train technologies, but we must admit that one of the most alluring vehicles at the Detroit (NAIAS) Motor Show ...

Audi will launch its North American diesel offensive with the Q7 3.0 TDI arriving next January and the A4 3.0 TDI that will follow within a year (VW's Touareg twin will get the new V-6 as well).

Diesel engines lack the spark of gas engines, both literally and figuratively. They don't need a spark plug since they ignite the fuel using only compression, but also lack the 'je ne sais quoi' that ...

Any certified gearhead knows that diesel engines do not use spark plugs. But why not? If power in an engine is created by combustion or explosion of flammable liquids, won't a spark plug in a diesel ...

Dieselgate started back in 2014, but it has never really ended, as more and more allegations roll in of defeat devices across the diesel spectrum. From VW and Daimler to Cummins and Bosch, the EPA, ...