2013 Dodge Ram 2500 5.7 Hemi

My take is it depends on how often you tow, and how far you tow when you do. When my average towing trip was 200 miles twice a month, my Dodge 2500 with the 5.7 Hemi was the best truck in the world. Towed my 8K load on the flat ground that I covered with ease. Even when I went south twice a year I was a happy camper, and didn't mind the fuel stops every 200 miles. Then things changed. For two years I had a trip every three to four weeks that was 2500 miles round trip, half in very hilly country. All of a sudden the Hemi was getting 7.5 mpg and I was shifting between third and fourth gear (standard trans) about every 5 minutes in some stretches, and I couldn't run the speed limit. I changed to a F250 with the 6.0 PSD, and literally got 33% better fuel mileage (and diesel costs less up here). I could run the speed limit (68 mph) in fifth gear, and have the odd downshift to fourth on only the steepest hills. The fuel mileage difference meant I was saving a full tank of fuel a day - $125 per day in savings, $500 per round trip.

So it depends on what your needs are, mostly.

Brian