I’ve got 40K. Run the coast in TX, pull a double axle trailer up and down the road. We load up and run I-10 from SA to Sonora at 85 and with the cruise. No hesitations or drop on up the steep hills. We had the 4.0 in our 11DC. Bout the same on performance. Not A 4x4. Gas mileage... perhaps...
You can take off the factory bed cover and put on whatever you want. I purchased a Truck Covers UDA. EXPENSIVE but Awesome. The only water I see; after a car wash drive through is from under the truck by the tailgate. A bit of weatherstripping and that is gone as well. The roll up bed fits in a...
I've actually got 20.3 running 345 miles averaging 74 mph with ambient temp of 70°f. That's highway and about 20 stop signs and red lights thrown in.
I also have gotten down to 13.4 driving the same speeds on 295 miles the next day with average Temp of 30° with a cross wind of 20-30 mph...
Went to dealer this am for wind noise. They ordered new weatherstripping for driver side front with no argument. Told them wind and speed would make squalling noise. Push on window at top corner and it would stop