NACFE's latest Messy Middle Powertrain Service & Maintenance report says renewable diesel gives fleets an opportunity to ...

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

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 ...

Let's make something clear from the outset. We aren't talking about diesel engines for marine applications or for 18-wheelers. Or wacko diesel engines for trains. We're talking about diesel engines ...

We all know why diesel engines are great for pickup trucks: They pull hard and use less fuel than a gasoline engine doing the same work. Greater fuel efficiency will often offset the greater cost of a ...

A German research team at the Otto von Guericke University Magdeburg has showcased a hydrogen engine that might soon replace traditional diesel power. The study is helmed by Hermann Rottengruber in ...

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Anybody in the market for a new tractor knows they’re expensive—really expensive. And not only are they a high upfront cost, but maintenance tends to be increasingly complex, as manufacturers pack ...

There are significant parallels between today’s emergence of electric vehicles and the emergence of diesels a century ago. George Santayana’s quote sticks in my mind: “Those who cannot remember the ...

Cummins’ EPA 2027 X15 features a larger two-piece SCR system to meet lower NOx limits while keeping overall system weight neutral. The engine is rated up to 605 horsepower and 2,050 pound-feet of ...