Automakers have spent the past decade shrinking engines and bolting on turbochargers in the name of better fuel economy, and twin turbos are the most aggressive expression of that strategy. The ...

The Environmental Protection Agency is asking diesel engine makers to provide information about diesel exhaust fluid system failures as it considers changes to emissions regulations.

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 ...