What do you drive again?If I did the math right the fuel economy is only slightly worse than my 2500 gasser does unloaded. Not bad.
That's like 11.5-12.5 Miles per US gallon roughly.
I've seen gasser 6.2 (2017+)super duties haul bigger trailers and get more or less same economy so it isn't stellar.
Keep in mind this is Southern Manitoba. There isn't any elevation change .
Literally if there are any hills on the trip we just took higher than 20 meters I'd be surprised.