I use this method to find my mileage - fill up at the gas station till the pump auto-click stops, and then mileage from last fill up/gallons.
It has 3.90 gear+LSD opposed to stock 3.42 gear+open diff. Probably have some other mods that hurt fuel efficiency. Truck carries 100-150 lbs of gear nearly all the time.
Has a 26 gallon tank, but I usually refill around 4-6 gallons left.
Build Thread:
Current Mods:
None
Planned Mods:
Tuning, small aero mods. An aero style canvas top to go with the current setup that's over part of the bed.
