Just got back from a 3 week vacation in my new Ram. Put 8,500 miles on during the vacation. I found the truck to be extremely comfortable and a joy to drive - - love that power. Started with 1,000 miles on it and now have 9,500. Fuel economy averaged out to 16mpg (loaded with enough gear for 3 wks on the road and driving the Rockies, the Cascades, etc. ). Pulled some 10+ % grades in OD @ 55mph - no downshifting, no bogging, no problem. Did some 4 wheeling and the truck preformed well in every respect with one exception. Injector pump started leaking, 5 days spent at Glacier instead of 2. Only a 4 hour repair but it was a "star part" (a flagged part they've aparently been having problems with) so had to wait for an inspected part to come in because they wouldn't let the dealer stock it (not too happy about this Chrysler policy). Fixed under warranty. Pushed it up to 110mph, pulling hard when the limiter shut it down - no vibration - solid as a rock. Love this truck!!:--)