I am the second owner of this vehicle, but it has been in the family since new. The truck was lightly driven for the first 13 years, and then I've put on more regular miles (approx. 15k a year) since 2004. This truck is a rock and maintenance wise fairly inexpensive to own. The major work I've had done on it since I've owned it is a new drive shaft, new transfer case, and a new power control module.
The AC blows frigid for a 18 year old truck and the reliability of Dodge's bulletproof 318ci (5.2l) V8 has been a blessing. The truck is excellent for towing as well.
The gas mileage is terrible, and I've been averaging 10-12 mpg. If you do all highway driving, you may be able to get 15. At 3.91 gear ratio, it would probably be better suited for a 3.23 ratio to improve mileage.