FYI Florida now has a 91 octane 100 Gasoline for RV and boats. It has the road tax paid so it is legal to run in your car or truck. If the price right I found a 22% increase in my truck gas mileage. Big advantage comes with two cycle engines. There is no alcohol to dissolve the added two cycle oil and engine life is back to the old days before ethanol. Plus 100% Gasoline has a 6 month shelve life as compared to about a month and a half with ethanol. I have been purchasing 100% 91 octane gasoline from a local station for about 5 to 8 pennies a gallon higher than 91% ethanol. However that station had storage tank problems and was shut down by the EPA. This has forced me to purchase straight Gasoline from a Marina at super high prices. I no longer use it in my truck because of price. I still feel it is worth the added expense for the life of my air cooled engines.