i can get over 600 miles on a tank of straight highway.

in the city, meh, i'd be lucky to see 450! these trucks dont like city or fast highways

 

I get 12-13 city 16-18 highway. This is driving not how I want to be.

My gauge is also never correct; as in the instant read out is lying and my trip A, which I reset at each fill-up, never matches my hand calculation. I use an app to hand calculate my mileage.

Looking at my statistics

Average fuel economy: 13.88 mpg (I mostly city drive)
Worst fuel economy: 11.41 mpg (heavy on the pedal-couldn't help myself)
Best Fuel economy: 18.64 mpg (highway heading south wind at my back)
Average Fill-up: 17.52 gallons (I always fill up at half tank)

Stock 2013 FX4 3.55 gears, 20" wheels- ecoboost