Diesels are becoming increasingly rare, but they're still an important part of some American automaker lineups, and there are ...

Modern diesel fuels are designed to reduce emissions, but they also introduce some new challenges because the engine is ...

Diesel engines have a bit of a reputation in the United States. While in places like Europe they are abundant in almost every single manufacturer lined up, the United States tends to have a different ...

Diesel Exhaust Fluid systems have been plagued with reliability issues, raising questions about the EPA's approach to ...

If you're a Ford fan, and you need something hauled, moved, or towed right now, you can't get much better than the Ford Super Duty (also called the F-250, F-350, and so on). Like its smaller brother, ...

Dieselgate started back in 2014, but it has never really ended, as more and more allegations roll in of defeat devices across the diesel spectrum. From VW and Daimler to Cummins and Bosch, the EPA, ...

Diesel innovation in Europe produced some genuinely brilliant engines, along with a few that mechanics would rather never see again.

The 2027 Ford Super Duty is dropping its 6.8L gas V8 and standard-output 6.7L diesel, leaving buyers with one gas and one ...

Retailers sound the alarm on engine oil inventories after an Iranian missile strike hit a key refinery, but it looks like ...

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The diesel-powered Nissan Navara delivers 30 MPG, strong towing capability, and the kind of mid-sized truck efficiency ...

Long-haul truckers and diesel engine enthusiasts had to rethink their entire operations in 2010 when the Environmental Protection Agency mandated selective catalytic reduction technology. Selective ...