The war in Iran has disrupted supplies of diesel, used to power trucks and heavy equipment, much more than gasoline, which is ...

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

In 2016, Nissan introduced a Cummins-powered engine option for the Titan pickup truck, a model that had already earned a lukewarm reception from full-size truck buyers. After a brief and troubled ...

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 ...

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 ...

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 ...

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 ...