Finnish manufacturer Wärtsilä introduced an engine back in 2015 that was so good, it snagged a Guinness World Records title for being the most efficient four-stroke diesel engine shortly after its ...

Diesel engines come in small packages for many different applications. Here are some of the smallest diesel engines you can buy and who makes them.

From its humble beginnings to revolutionizing the pickup truck segment, this legendary powerplant has left an indelible mark ...

When it comes to heavy-duty diesels, enthusiasts and truck owners inevitably circle back to the best American diesel engines: Ford's 7.3L PowerStroke, Dodge's 5.9L Cummins, and GM's 6.6L Duramax. If ...

Diesel engines lack the spark of gas engines, both literally and figuratively. They don't need a spark plug since they ignite the fuel using only compression, but also lack the 'je ne sais quoi' that ...

The 12V Cummins diesel engine and its 24V version share numerous traits, including displacement. But their differences make the engines quite distinct.

Detroit Diesel doubled down on engine designs that struggled to keep up with regulations, and it was eventually acquired by ...

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 ...

Caterpillar Launches Cat C32B Diesel Engine Available now worldwide, the new 32.1-liter, 12-cylinder engine features design improvements to boost power density and reliability while extending the time ...