Originally Posted by VAhuntr

I'm looking for some real world experiences(good or bad) and observations/opinions with any of these trucks. and the GM's would be the 5.3 liter.


I have the 5.3 in a GMC Sierra extended cab 1500. 4:10 gears, tow package, and an automatic. It averages 14.5 mpg all around. Will get 16 to 18 on the highway but around the farm and driving into town on the gravel its usually around 13 to 14. Mileage drops in the winter. Its been reliable and at 52K has given me no major trouble.