Well, the family is growing and Im looking to upgrade to a crew cab, and love the 05 to 07 body style and want the diesel,for power and milage. But all the badmouthing the 6.0s get, gets me scared to puchase one. I just want a reliable tow vehicle to pull the family camper that is 10,000lbs. Would a coolant filter and changing the coolant be enough if left at stock power. I really dont want to have to put head studs and all that into a truck. Thanks for the help.