First time filling up locally after using the truck for normal driving. Around town, commuting, camping, etc sort of 'normal use' I got 23.96 MPG. 675 miles until the fuel light came on and she took 29 gallons which means when the fuel light comes on, I have roughly 90 miles left before the truck is bone dry. The fuel gauge read 50 miles remaining so there's a 2 gallon 'reserve' for zero. I'll push it further next time and maybe put a gallon of diesel in the bed just in case but I really want to get my 'real' tank range which appears to have been closer to 800 miles before it was truly empty.
I think MPG will improve but 24 around town in a truck is great.