Towing 16,000# Gas 6.9mpg, diesel 10mpg 116,000 miles needed towing to pay off the diesel upgrade Empty Gas 16mpg, diesel 19.9mpg 650,000 miles needed to pay off the diesel Video
LOL! You can’t get an accurate mileage in 66 miles! Too many variables too little fuel used, need to run near a full tank to get a real mileage reading. That and there is the difference in fatigue level!