What makes a diesel engine different to a regular gas engine, and is one better than the other?

For hundreds of years of human history, the invention that has defined our ability to travel, explore, and expand our boundaries has been the combustion engine. This hallmark of mechanical development ...

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 can technically run backwards, though there's very little (if any) practical applications for this, especially for road-going engines.