Twice with non ethanol gas my jeep got an extra 50 miles on a tankful of gas.
Much to my surprise I actually saved money by paying a bit more for non ethanol gas, here's what I wound up with-
At a local BP I put in 18gals @10% Ethanol and went 290 miles.
290 ÷ 18 = 16.1mpg
The next time I filled up at Volco 18gals Non Ethanol and went 340 miles.
340 ÷ 18 = 18.8mpg
The non ethanol gas cost me about 20 cents a gallon more than ethanol gas or about $3.50 more a tankful.
$3.50 is about 1.1 gallons of gas at the current ethanol price of $3.20/gal.
At 16.1mpg I would have to buy an additional 3.1 gallons of ethanol gas to go that extra 50 miles costing $9.60
$9.60 -$3.50 =$6.10 savings on a tank of gas using non ethanol. That's almost $290/year savings.
Convinced me to start using non ethanol gas in all my vehicles.