A wind tunnel at Moffett Field normally used to test airplanes and other things that fly is being used to test the aerodynamics of a big diesel truck — to save up to 3.4 billion gallons of fuel ...

FRESNO, Calif. (KFSN) -- The sale of new diesel trucks in California won't have to hit the brakes any time soon. That's ...

One of the world’s largest commercial truck manufacturers is refusing to sell its diesel big rigs in Oregon, even though its North America headquarters is in Portland. Daimler Truck North ...

Stellantis will offer two engine options, including a turbo diesel, for its 2025 Ram Heavy ... best-in-class torque for the heavy-duty truck segment at 1,200 pound-feet." Need a break?

California’s Advanced Clean Fleet rule, which phases out diesel trucks, was one of the most ... saying electric and hydrogen big rigs are not practical for long-haul uses and that it would ...

Diesel trucks leave the Port of Oakland with cargo. (File photo by Martin do Nascimento/CalMatters) California’s efforts to limit pollution from diesel-powered trains and big rigs were stalled ...

Daimler Truck North America resumed diesel big rig truck sales in Oregon on Monday. The company abruptly halted sales of its internal combustion engine vehicles late last month, after receiving ...