Just did 700 Miles this weekend for the 4th July Holiday, 350 each way all highway running 80mph temp was 80 degrees out orginial EP20 tires 5/32" lft ------ 50.2 A/C off going to Eagle River Wi. and 53.3 coming back A/C on.
Easy: miles gallons MPG 1 500 12 41.7 2 600 12 50 3 700 12 58.4 4 800 12 66.7 5 900 12 75 6 1000 12 83.3 To use all 12 gallons, carry a spare can in case it runs out Our 2010 has 12.1-12.2 usable gallons Bob Wilson