Steam ruled the waves—until diesel showed up. In this powerful video, we break down how a once-overlooked engine design took over the oceans. From Titanic-era rivals to today’s mega-container ships, ...

The Environmental Protection Agency issued stringent new rules yesterday curbing harmful emissions from diesel locomotive and marine engines. Over the next quarter-century the regulations -- which ...

This winter, we blew our Diesel Power expense budget by chasing bikinis and checking out the latest diesel engines in sunny Miami. Going into the show, we knew very little about the engines that find ...

OAK RIDGE, Tenn. — Oak Ridge National Laboratory and Caterpillar announced a partnership on Wednesday to develop engines using methanol to power large container ships. ORNL researchers said they're ...

With labels stating "diesel fuel only" and the existence of separate gasoline and diesel pumps, most people know there are distinct differences between gasoline and diesel vehicles that go beyond the ...