Of course, some consumers prefer the power characteristics of a traditional gasoline V8, so Ram will also continue to offer its 5.7-liter V8 engine as an optional upgrade over the base gasoline V6 engine. The torque ratings are very similar between the diesel engine and the gas V8, but the V8 has slightly higher towing capacities (depending on the cab/bed configuration you choose), and it's actually a less expensive upgrade than the diesel. However, given that Ram expects the diesel V6 to top the base gasoline six-cylinder's EPA fuel economy ratings, the extra up-front cost for the diesel is likely to pay for itself within a couple years.. Learn more about the 2014 Dodge Ram 1500 .