Originally Posted by
mzdspd
Truck: 2015 Sierra 2500HD, crew cab, 6.5 ft box
Engine: 6.0L Gas
Transmission: 6-Auto
Rear axle ratio: 4.10
Tire size:Stock, 265/70/18
weight of truck (including people and stuff in the bed): Not much in the truck, two people and a dog.
total weight of trailer: 1750 lbs dry slide in truck camper, probably 2000-2200 lbs with stuff in it.
towing speed: usually 95-105 on highway
modifications: Stock
Mileage seems to really vary with the wind..
Edmonton to Jasper, I was averaging 20-22 L/100k but on the drive back it was really windy so mileage was around 30 L/100k.
Overall, I seem to be getting around 22-24 L/100k on most trips.
I am planning a longer trip through BC (Nelson area) in the next few weeks so I will probably monitor mileage to see what I get on this trip.