Although diesel isn't a common fuel type in the United States these days, there are some who still buy diesel trucks because there are some advantages. For starters, new diesel trucks generally pull ...

The Trump administration has issued new guidance on diesel exhaust fluid (DEF) systems aimed at avoiding sudden engine shutdowns that sideline trucks and cost truckers money. U.S. Environmental ...

Here's the story of perhaps the most legendary diesel engine ever made, the Cummins 5.9L.

Diesel engines are known to be reliable and long-lasting, but they can also present unique maintenance issues that you must ...

Ram announced that the TRX pickup truck — a Ram with a Hellcat engine under the hood — is coming back for the 2027 model year ...

The law of unintended consequences applies to much more than just reviving Jurassic-age dinosaurs. It also comes into play with diesel trucks: Relying on a diesel rather than a gasoline-powered engine ...

In a move that could reshape enforcement of the Clean Air Act in the diesel truck world, the United States Department of ...

The U.S. Department of Justice on Wednesday announced it's pausing criminal prosecutions of diesel "delete" procedures under ...

Volvo Group AB’s two North American subsidiaries continue to restrict new diesel truck sales in Oregon despite recent uncertainty over reporting requirements for zero-emission vehicle sales being ...

Across the EU, just over 307,000 new medium and heavy trucks were registered in 2025. Almost all of them were diesel-powered. Despite growing political focus on zero-emission freight, diesel still ...