A popular argument in the heavy-duty pick-up truck segment - where big names like the Ford F-250 Super Duty and Chevrolet Silverado 2500HD do battle - is Cummins versus Duramax, and who reigns supreme ...

Several years ago, Paul Wion, corporate fleet supervisor at Lewis Tree Service in upstate New York, got up during a Shop Talk session at a TMC meeting to describe a fix for diesel particulate filters ...