The Peterbilt 579 featured in the video up top is powered by the Cummins X15N natural gas engine. It's the engine maker's latest and greatest natural gas engine and just one of three engines in the ...

As it readies the 12L ISX-G to begin production in mid-2013, Cummins is taking this natural gas-fired heavy truck engine unit on the road to fleets and dealerships to explain the engineering ...

Natural gas engines have the potential to be the least commercially disruptive technology available in the quest to reduce trucking’s carbon footprint, even though they haven’t caught fire in trucking ...

Forbes contributors publish independent expert analyses and insights. I first rode in a self-driving vehicle in 1991. Haven’t looked back. To a trucking user, CNG vehicles operate much like ...

Natural gas has been an option for fleets seeking a green energy alternative for years, but only found its niche in select operations – namely return-to-base fleets that didn't need a lot of power.

Outfitted with the inaugural Cummins X15N™ CNG engine designed for heavy-duty transportation fleets, the first-of-its-kind truck will travel across the country fueling up at Chevron CNG locations to ...