Diesel engines offer tons of torque allied with impressive fuel economy, but they tend to be noisier and less refined than ...

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 ...

Several of the world's largest truck makers are switching away from diesel. The replacement comes in two forms, and the race ...

Today's diesel fuel lacks much of the natural lubricity that diesel fuels once offered, taking a potential toll on fuel ...

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 ...

Cruise ships make use of a wide array of diesel engines. It might seem like overkill, but their presence is quite important for crew and passengers alike.