Made a early morning run to College Station and back. Propped up the hatch and activated the Gurney flap to kick the air up over the 6'x12' trailer. Trailer was loaded this time (lots of heavy boxes) with a little more weight (estimated) than before (furniture).
Indicated mileage was 17.0mpg going up and 13.2mpg coming back. I think there was a little bit of a headwind on the return trip in the afternoon.
I was thinking that I should've measured the height of the hatch when the trailer/truck was loaded and unloaded. Not sure if the increased angle of the hatch (truck/trailer unloaded) should've been matched to when the truck/trailer was loaded. Looks like the mileage is gonna be a wash.
