42k on my 2011. Averaging 12.7mpg (80%city/20%hway). No major problems besides preventative maintenance. Only thing I did replace myself was the ticking canister purge valve. $60 part from the stearlerhip and 10min of my time.
2011 Harley Davidson F150 6.2-5% Tint/CraveSpeed Stubby Antenna/Stock H.D. wheels powder coated satin black/aFe Stage 2 Intake/MPT Custom tunes/Ground Force 2" drop shackles/Plasti dipped accents/The original PD'd tailgate panel/HID's/LED bulb conversion/Peragon bedcover/DeeZee tailgate assist