How big does a diesel engine have to be to spin an airplane's propeller? Would you believe an engine smaller than a quarter ...

It's not hard to find very small mass-produced gasoline engines, but diesel is another story. Diesel engines are more expensive to manufacture, so a small-capacity diesel in a cheap car can push up ...

The diesel engine may have fallen out of favor, but some manufacturers aren't letting go of it. We're about to see some ...

From cylinder deactivation to active grille shutters, carmakers go to significant lengths to increase fuel economy. What if the answer is simple? YouTuber Robot Cantina dropped a tiny diesel engine in ...

While the list of car brands that still use diesel engines is increasingly small, diesel still dominates when it comes to heavy-duty trucks. There are a number of reasons why diesels are the obvious ...

GM to offer improved diesel engine in its redesigned pickup trucks GM's diesel strategy diverges from hybrid route taken by Ford, Stellantis Federal estimates show higher diesel prices can raise ...