Here is a little different view of gas cost. Last year,I ran 380.7 miles on the GPS, and put 54.2 gallons in the boat. That was on 17 trips to the lake. The total year evens the filling. That would put me at 7.02 miles to the gallon, also used a gallon of oil. I launch at Soddy, CFP or RP most of the time, as they are about equidistant from home. I agree with the others, drive to the launch closest to where you want to fish, as my truck gets better mileage than the boat. I am running a Ranger w/ a 115 E-tec, heavy boat compared to some, but I don't normally run more than 20 -25 miles in a day's fishing. Used to run a small Dynatrak, with a 60 HP motor, and didn't do any better than my current rig. Hope this helps.