Digging deep into how hydrogen could be produced and used by heavy trucks suggests that our current understanding might be deeply flawed. It’s likely to be...

Thermo King's third-generation TriPac Auxiliary Power Unit includes features such as TracKing telematics, emission reduction technology, and improved...

Cummins Clean Fuel Technologies' new back-of-cab natural-gas fuel systems weigh less and are easier for technicians to inspect and troubleshoot.

Range Energy introduced its 53-foot powered trailer, RA-01. The full-scale electric trailer is designed for fleets seeking ways to reduce emissions.

Battery-electric was not the only clean-transportation option on display at the Advanced Clean Transportation Expo. See what else caught our editors' eyes...

Navistar said its SuperTruck II project truck achieved a 170% improvement in freight efficiency in road tests.

To drivers with less than five years of experience, it probably feels heretical to operate a diesel engine at 2,100 rpm. But if you want great performance...

Fleets running downsped drivelines might be missing out on up to half the potential performance of their engine brakes. Here’s how to get the most from the...

Today, clean diesel engines make up about 57% of the commercial vehicle population. And it’s a 10% jump over this time last year. So, what's going on? Jim...

HDT editors visited Gothenburg, Sweden for a deep dive into Volvo Trucks electrification and decarbonization effort. The visit included an afternoon at the...