[JRMichler]

Drove 2139.1 miles, and burned 42.93 gallons, for the last four tanks, for average 49.8 MPG. SOO close to 50 MPG.

Almost all of my highway driving is on rural roads with 55 MPH speed limits. On those roads, I normally drive 55 to 60 MPH, and struggle to get 50 MPG on the dash display that reads slight over 2 MPG high. On shorter trips at 25 to 40 MPH, 60 MPG is easy, and I've seen 70 MPG once or twice under ideal conditions.

I'm currently trying to figure out how to build an aero topper that will not leak water into the box. Other trucks have a gap between the box and cab for water to run down. This truck does not. Water that runs off the rear of the cab needs to be forced to drain to the sides.

EDIT: I have no plans to make any changes underneath. There is already a recall for this vehicle to increase airflow through the grille (and thus drag) by removing some of the grille shutters and drilling holes in one of the pans. Apparently, Ford believes that underhood temperatures can get too high under certain conditions.