Every day, we see an increasing number of diesel engine swaps. Why? Simple: The automakers have never built enough diesel-powered vehicles. So each day, more and more enthusiasts are converting their ...

Shawn Smalley and his family were 900 miles from home, pulling a 36-foot toy hauler, when the 7.3L Power Stroke engine in Shawn’s ’01 Ford F-250 let go. What had been a wonderful family vacation ...

Navistar’s new approach to meeting 2010 EPA emissions standards, which partly involves Cummins engines and after-treatment, raises that very question about Caterpillar’s CT vocational trucks and its ...