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 ...

One has raw, lightweight power; the other is built for efficiency and durability. Discover the mechanical pros and cons of ...

When it comes to debating the best diesel engines ever put into pickup trucks, it doesn't take long for Ford Power Stroke models like the 7.3L and 6.7L (not to be confused with the 6.7L Cummins diesel ...

Porsche was issued a patent for its six-stroke combustion engine on October 22, 2024. The company describes the new engine as having a "working cycle" of three complete crankshaft revolutions with two ...