I have an 05 Dodge with 5.9 Cummins, over 250K miles and tow my 9K travel trailer all the time. Most trips are from TX to CO. Some to SC. I service and maintain mine. I don't hesitate to take it anywhere. Plan on taking it to Alaska next summer for a 3 month trip. I guess it boils down to how much confidence you have in the truck. Mine has never let me down.