This old Ford diesel took nitrous, coolant, and butter — then started right back up.

Powering thousands of Class 8 trucks with massive amounts of torque, stellar economy and proven reliability, the Detroit DD15 ...

Cummins is a trusted name in diesel engines. Its oil-burner motos run everything from Ram HD trucks to buses, generators, and ...

Obviously diesel fuel should be your first option (and only option, ideally) when fueling your diesel vehicle, but in a pinch ...

CCJ recently got an up-close first look at Cummins' new X15 diesel engine, the powerhouse built on the innovative HELM platform to conquer strict 2027 emissions regulations. Emission innovation ...

The inline-6 engine layout has its fans in the gas world, but it's the de facto standard design among diesel aficionados. Hardly surprising, as these engines are less complex than any V layout and ...

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

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, ...

Any certified gearhead knows that diesel engines do not use spark plugs. But why not? If power in an engine is created by combustion or explosion of flammable liquids, won't a spark plug in a diesel ...

You own a diesel-powered vehicle and are thinking of giving it a tuneup. But does your diesel even have spark plugs to change? The short answer is no, diesel engines do not have spark plugs. Instead, ...

Despite the original diesel fiasco in the 2010s — and the five automakers facing their own Dieselgate trial in the U.K. this year — diesel engines have definite benefits over their gasoline-powered ...

As technical remedies to climate change go, taking carbon emissions out of passenger transportation is easy; we can switch from gasoline engines to electric motors fueled by renewable energy sources.