Dreaming of a 7.2-liter Cummins in the next Ram HD? “It simply won’t fit unless we do, like, a Class 8 size front end.” ...

You're driving a loaded diesel rig down a mountain pass, foot hovering over the brake pedal, heart racing. How do you slow 20,000 pounds safely without cooking your brakes? Cue the exhaust brake -– ...

The engines that power the vehicles we drive are exceptional machines. They're capable of generating insane amounts of power in a relatively confined space, and they can generally be expected to ...

Scientists are exploring a surprisingly simple way to clean up diesel engines: adding tiny droplets of water to the fuel. During combustion, the water rapidly vaporizes, triggering micro-explosions ...

Most modern diesel engines already feature an electric start system. However, older engines often required manual starting methods such as hand cranks, kick-starts, or pull-starts, which could be ...

Discover the engineering marvel behind Mazda's Skyactiv-D 2.2 diesel engine, and what lies ahead for diesel fuel. Mazda unveiled the second-generation CX-5 in 2016 and promised buyers they would soon ...