The famous ram hood ornament appeared on Dodge trucks in 1933, and by the late '40s, four-wheel drive and diesel engines had been added to the list of functional features. Dodge began using the ...

For 2025, a new 6.7-liter Cummins turbo-diesel six-cylinder makes a little more horsepower than its predecessor in the Ram 2500 and 3500 Heavy Duty trucks. Ford’s latest recall affects more than ...

Heavy-duty truck manufacturers and dealers are caught in a swirl of shifting and conflicting rules over zero-emissions big ...

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 ...

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 ...

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 ...

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 ...