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

The best days for diesel engines might seem to be in the rearview mirror, judging from a few comparisons with gasoline engines, which are dominant in the U.S. among passenger cars and less so with ...

Because diesel vehicles do not use spark plugs, they must rely on higher compression ratios to ignite the diesel fuel without ...