OPINION: With diesel prices spiking 45% higher than a month ago, what was a health and pollution problem is now barreling ...

The fuel and exhaust systems inside diesel engines work closely together. As a result, fuel- and exhaust-related issues can be some of the most difficult to diagnose: A symptom in one system often can ...

While diesel-powered passenger vehicles are increasingly limited in the U.S., they remain vital, especially for those in the agriculture industry, thanks to their superior low-end torque, which ...

A motorist fills up the tank of a vehicle at a gasoline station in Littleton. (AP Photo/David Zalubowski, File) How a vehicle built to run on unleaded fuel reacts when diesel is introduced to the mix ...

Volkswagen Group has admitted that former chairman Martin Winterkorn received two memos about the diesel scandal in 2014. Top execs ignored the problem because they didn't think it was a serious issue ...

Diesel engines have a steadfast reputation for reliability, longevity, and pumping out gobs of grin-inducing, low-end torque. The latter makes diesels preferable over gas engines for hauling, towing, ...

On Wedneday, President Joe Biden announced that the federal government would be selling another 15 million barrels of oil from the US strategic reserves — after pulling 180 million barrels out of it ...