The story behind BMW's unique quad-turbo diesel engine, its impressive performance, and how it stacked up against its rivals in the X5 M50d.

The above figures were observed while cruising near sea level with ambient temperatures of 75-80 degrees F. Final axle ratio was 2.78:1, with a turbo A/R ratio of. 81:1. With over 180,000 miles on the ...

Here's the story of perhaps the most legendary diesel engine ever made, the Cummins 5.9L.

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 ...

COLUMBUS, Ind.--(BUSINESS WIRE)--Today, alongside their partners at Ram, Cummins Inc. (NYSE: CMI) unveiled the new 2025 6.7-liter Turbo Diesel Pickup engine system for Ram Heavy Duty, their most ...

Mainstream diesel performance hit a home run when Dodge introduced the Cummins-powered Dodge Ram in 1989. In stock trim, the trucks were reliable yet underpowered, but it wasn’t long before ...

Introduced for the 2017 model year, the L5P is the Duramax V8 turbo diesel General Motors utilizes in heavy-duty pickups like the Silverado HD. Manufactured in the United States, the 6.6-liter turbo ...