The engine bay doesn't lie — here's what decades of care actually looks like.

Diesel engines are known for their reliability, but that's only if proper routine maintenance is provided to the drivetrain ...

Westport HPDI system allows trucks to run primarily on natural gas while maintaining familiar diesel maintenance practices.

There are many differences between diesel and gas engines, including some less obvious aspects of engine construction, such ...

It has stopped criminal prosecutions of people who install “defeat devices,” which make diesel trucks faster and more ...

Westport's HPDI system uses a small diesel pilot injection to run primarily on natural gas while keeping familiar diesel ...

The software update changes DEF-related derate parameters to meet updated EPA guidance issued last summer. Also: Community's ...

But the big reveal was the next generation of its more than 40-year-old B-Series power platform with a new 7.2-liter diesel engine for 2027—the same year that the Environmental Protection Agency’s ...

KENNEDY SPACE CENTER — The Artemis II crew performed a special burn of the Orion capsule on Thursday evening. This critical burn is the last step to sending the four astronauts on a flyby of the moon.

Daimler Truck North America is updating emissions software on about 330,000 Detroit-powered trucks, giving fleets more time to address diesel exhaust fluid system faults before severe derates take ...