For in-town moves, however, one-way rentals might not be cheaper. How many miles per gallon does a 15-foot U-Haul get? A 15-foot U-Haul truck gets 10 miles to the gallon without cargo. Although U ...

I’m not sure how much a box truck weighed in 1978, but a modern 15-foot U-Haul has an empty weight of 8,115 pounds. So the roof may have required quite a bit of reinforcement to handle that much ...