Bought my Sierra 2 weeks ago. I have just over 2000 miles on it. 1000 miles of that towing a 30' 6,800lb Travel Trailer.
Sold my 2.8L Duramax Canyon and 6.7L Cummins Ram 3500. This truck is the perfect compromise between the two.
Getting 28mpg unloaded and 12MPG towing.