Westport is debuting its high-pressure CNG fuel system with Cespira HPDI technology on a Volvo VNL 300 at ACT Expo. Another high-horsepower natural-gas engine system may soon be available from ...

RNG has arrived as a proven, bottom-line fuel strategy for Class 8 fleets. Clean Energy SVP Chad Lindholm says the ...

The keys to running renewable natural gas as a fleet fuel depend on specialized technician training, rigorous inspection ...

The second day of the North American Council for Freight Efficiency’s “Messy Middle” demonstration — Sept. 9 — was World EV Day. But the event features almost as many natural-gas powered tractors as ...