Our 2005 Gen 3 Ram 3500 Quad-Cab 4WD pickup with a Cummins 5.9L H.O. turbodiesel has been a great vehicle, and we’re glad we bought this truck. However, a lot has changed since our truck was new. In this video, I share the virtues of diesel power while explaining how changes in fuel costs, emissions requirements, maintenance costs and gasoline engine technology now make the diesel truck option questionable. My work with under-square engines and diesel power began over five decades ago. If you are choosing between a new or used gasoline or diesel powered truck, my aim is to help you make an informed decision.