The gas mileage is terrible. Average mpg is 13. 8.
The 2004 Chevy 1500 has a lot of problems when you get around 100, 000 miles. The transmission had to be rebuilt and I have replaced almost everything to do with the drivetrain and suspension. Interior is nice and It's a very ergonomic design however there is limited movement on the seat adjustments. The rear seats are comfortable and I have taken passengers on long rides without complaints. The steering is nice and smooth but the turn radius is not the best and I find myself pulling more "w-turns" than "y-turns". Also make sure you have some weight in the bed when Its raining otherwise you will find yourself spinning around every turn just like snow covered roads.