I have a 2012 1500 5.7 2wd and ive been happy with it. Pulling rzr on 6x12 trailer it shows 15mpg and pulled 18ft dove tail with lifted Cherokee on it and besides squatting it done fine. If you are gonna pull a fullsize vehicle with one id suggest air bags which you can get on moes performance for $90. Also if you get the 2wd reg cab like I have they are geared high (6spd with 3.55 gear). I have a 4.10 gear for it just haven't put it in yet. As far as unloaded I cant complain a bit. We took a trip to Destin,FL in it from Athens,tn. Filled it up in Athens and drove to destin then rode around some before filling up again. $75 and went 500 miles on that tank.