More than two-thirds of all commercial diesel trucks and buses are now powered by the latest generation of advanced diesel ...

New data and owner reports shed light on the trade-offs between diesel and gas-powered trucks, from real-world fuel economy and towing performance to long-term costs and maintenance demands. Diesel ...

Volvo says advances in combustion and aftertreatment helped its new EPA 2027 D13 engine avoid the fuel-economy penalties many ...

Dreaming of a 7.2-liter Cummins in the next Ram HD? “It simply won’t fit unless we do, like, a Class 8 size front end.” ...

In the past six months the second Trump administration has launched an unprecedented assault on a whole slate of diesel exhaust emissions regulations. Diesel exhaust regulations, drafted by the ...

Several of the world's largest truck makers are switching away from diesel. The replacement comes in two forms, and the race ...

Environmental Protection Agency Administrator Lee Zeldin on Tuesday announced that his office plans to revoke the Endangerment Finding, which has allowed presidential administrations to regulate ...

Switching to zero-emission trucks should be a win for its fuel cost advantage. However, those savings can vanish quickly as higher insurance premiums push total expenses up. Zero-emission trucks, ...

Diesel-powered trucks date back to 1923 when one of Karl Benz' early companies — Benz & Cie — installed a four-cylinder, 45-horsepower unit in a 5K3 truck chassis. It proved to be a winning ...