Low mileage from Toyota Tacoma

[MyronL]

I used to always record my towing mpg but that got old and repetitious. Obvious factors are hills, cross winds, and driving speed.
On all long hauls I usually averaged 14.5 to -maybe 15 mpg. Straight and flat at 60 mph once got me a best average on the trip of 17.9 mpg. Absurdly rare and was a short haul. Regular gas, no pedal to the metal, my 2014 Silverado 1500 LT is a 5.3L V-8 4WD. It has a neat automatic valve adjustment down from 8 to 4 valves when it thinks conditions warrant it. Like that.