We have 127k miles on our 2011 when we bought it new in Oct 2011. It has taken our family from Michigan to Florida twice and many other places east of the Mississippi River. It has been the cheapest vehicle to own/operate excepting fuel. Almost no non-wear items replaced unless I "upgraded" by choice. Search for how many HD trucks are out there with 200, 300k miles. The engine/trans are very robust.
12mpg in mixed daily driving Summer
11mpg in mixed daily driving Winter
15-17mpg non-towing highway
7-8mpg towing the TT at 70mph
I'd love to replace it with a 2021 Suburban Duramax, but our needs for 3 rows of seats and towing are getting less frequent as our children age and start driving themselves. We have also been very happy with a 2018 Chevrolet Traverse that we leased for non-towing travel and now have a 2020 Buick Enclave. They ride so much better and use about 40% less fuel.
