The longest-lived diesel still rolling out of factories is not a museum piece or a limited-run curiosity. It is a workhorse straight-six that has powered everything from farm trucks to modern ...

Long-haul truckers and diesel engine enthusiasts had to rethink their entire operations in 2010 when the Environmental Protection Agency mandated selective catalytic reduction technology. Selective ...

When Arctic air settles in, drivers of diesel pickups and highway fleets learn quickly that not all fuels behave the same.