I have a 2005 Dodge Ram 2500, with a Cummins Turbo Diesel. I've pulled boats from 14 ft to 26 ft and had a hard time noticing any difference. I read in Diesel Power Mag that in 2009 Cummins is making a diesel for the Durango and 1500 ram. I bought this truck new in June of 06 and so far have been very pleased with my choice. It gets 23 mpg on the interstate not towing. Depending on what I'm pulling, I think the worst I've noticed was about 17-18mpg. Just stay away from Powerjokes and you'll be fine
