How many of you guys have had problems with the engine or truck and would buy another GMC or Chevy? I drive a 04 5.4 gas Ford and the fuel milegae sucks.I probably get below 15 on the hwy and less around town.So,obviously,I'd like to get better fuel mileage.

The Dmax seems to getting the best fuel mileage. I've heard of 2 wheel drive Cummins getting over 22 mpg, but not on the newer models. The Pstroke is not getting the same mileage as the Dmax from what I hear.