Mpg report

Our Taco/Fleet s really sensitive to wind or speed, but we average 18.6. Range is 15 to 22. I drive slowly though. Our Prius averages 51.

F250 6.2 gas. Could squeeze 16 unloaded. Maybe 12 highway, 9-10 city. Still got my "hotel" with me so no complaints

2017 Ram 6.7 Cummins w/Grandby. I get 16-18mpg. I keep it under 65mph and use Tow/Haul mode most of the time.

2006 Chevy 3500 diesel with 50hp tow tune. 17K miles recorded with Puma/Grandby mounted on the back, avg 16 USmpg. I drive speed limit plus a smidge.

2001 F-350 Crew Cab Short Bed 6.8L V10 on 35 AT's = 9.45 mpg average
Adjustment for tires, as I am ungeared still, is 10.6 mpg!

Recently did a 2100 mile trip across Texas. MPG varied greatly depending on speed and conditions. 2016 F150 FX4, supercab with 2.7 L ecoboost engine, with a 2019 FWC Hawk
Worse mileage was 11 mpg, driving into a strong headwind doing 75mph. The truck downshifted into 5th speed often, but I was in a hurry and west texas speed limit is 80 mph and I was paying less than $2 a gallon for unleaded, so what the heck. Bought fuel as low as $1.56 a gallon.

Best was 16 mpg driving 60 mph, on back roads no wind, pretty flat.

I have decided it's worth keeping around 65 mph and then I get around 14.5 to 15 mpg, which is fine.