Named after Rudolf Diesel, who invented it in 1893, the diesel engine is often associated with a dirty, smoky exhaust — an admittedly nebulous impression in no small part fueled by the black clouds of ...

Port fuel injection and direct injection are similar but distinct systems, so why do some engine designs include both?

Engines are getting smaller and more powerful, but these high-strung engines may not be as reliable in the long run as older ...