Not sure how "on topic" this is but I used to drive 70+ miles to work one way when I lived on the Big Island. 700 miles every week.
Gas being so expensive ($4-5 per gallon) I got a motorcycle which got 50-60 MPG as opposed to my truck which got 20. You can buy ethanol free gas there in 89 octane only. 87 and 93 both contain ethanol. As it happened the 89 ethanol free was almost dead on 10% more expensive than 87 with ethanol. Also to be noted the ethanol percentage in the gas was 10%. I ran many tanks filling up at the exact same time and amount of gas over and over. For example, I'd run 10 tanks of 87 and then 10 tanks of 89 ethanol free calculating my MPG on every tank.
This was all at sea level with similar temps. The only true variants were how strong the wind was and the 2% octane difference. (I threw out really windy days as this really cut down the MPG)
What I found with remarkable consistency was that when I ran the ethanol fuel there was an 8-10% lower MPG average. With ethanol free 89 I would get 58-64 MPG and when I used ethanol it would immediately drop to the low 50's.
I repeated these findings over and over and my conclusion was ethanol was worthless crap that negated the fuels value in direct proportion to the percentage it was utilized. Much like a drug dealer stepping on his product to maximize his profits. Ethanol IMO is nothing more than a scam that has also raised the price of food because corn is not in abundance like it once was. From Fritos to corn-fed pork it all went up in price. Suckage. lol
This is what I found as well. I get better MPG running straight gas, but it costs more. The end result is a wash. My per mile cost is the same whether I'm running E10 or ethanol free.
I run E10 in my daily driver, 94 Accord. I run ethanol free in EVERYTHING else.
To answer shadetree's question on his truck, newer fuel injected vehicles were designed to run ethanol gas. Fuel injection handles ethanol gas better as well. My buddy's Rincon fires right off after sitting with E10 in it for months, BUT if you let it sit in an EFI Honda for any length of time there's a good chance your fuel pump will get gummed up and have to be replaced.
Think about small engine jets versus a Jeep of Truck jet. A chainsaw might not start after a month of E10. A four wheeler after 3 months. A truck will probably still start after a year, but run like crap.
Of course, all of this also depends on the amount of gas in the tank, temperature swings, and moisture in the air in any given area.
Safest bet is to run ethanol free AND Stabil in anything that's not going to be used much. I did this for awhile, but I've been going through my gas stores fast enough that I quit using the Stabil and just run ethanol free gas. I neglected to drain my weedeater, two riding mowers, Husky XP saw, and hedge trimmers at the end of last summer. ALL of them fired right up this spring without so much as a hiccup. ALL had ethanol free gas in them with no Stabil. My 06 Foreman has been sitting in the yard since last March (2016). It fired right up, ethanol free gas with no stabil.
Not sure how "on topic" this is but I used to drive 70+ miles to work one way when I lived on the Big Island. 700 miles every week.
Gas being so expensive ($4-5 per gallon) I got a motorcycle which got 50-60 MPG as opposed to my truck which got 20. You can buy ethanol free gas there in 89 octane only. 87 and 93 both contain ethanol. As it happened the 89 ethanol free was almost dead on 10% more expensive than 87 with ethanol. Also to be noted the ethanol percentage in the gas was 10%. I ran many tanks filling up at the exact same time and amount of gas over and over. For example, I'd run 10 tanks of 87 and then 10 tanks of 89 ethanol free calculating my MPG on every tank.
This was all at sea level with similar temps. The only true variants were how strong the wind was and the 2% octane difference. (I threw out really windy days as this really cut down the MPG)
What I found with remarkable consistency was that when I ran the ethanol fuel there was an 8-10% lower MPG average. With ethanol free 89 I would get 58-64 MPG and when I used ethanol it would immediately drop to the low 50's.
I repeated these findings over and over and my conclusion was ethanol was worthless crap that negated the fuels value in direct proportion to the percentage it was utilized. Much like a drug dealer stepping on his product to maximize his profits. Ethanol IMO is nothing more than a scam that has also raised the price of food because corn is not in abundance like it once was. From Fritos to corn-fed pork it all went up in price. Suckage. lol
The ethanol fuel is not a scam! It was designed to free up a non - replenishing resource...oil. It also has a cleaner burning, less emissions property. GM bases there engine horse power ratings on E85 fuel because it is a larger amount of alcohol and produces more horsepower. It also grossly reduces fuel mileage. Well known fact. Ethanol fuels were not designed for our comfort/pleasure. They were designed to cut emissions and oil dependency. Think about it. 10% of the fuel is corn alcohols. Every 10gals of fuel is 1 gallon of alcohol. Each 42 gallon barrel of oil produces 20 gallons of gasoline and about 11 gallons of low sulphur fuel oil. Add 10% to the gasoline , that now makes it 22 gallons of fuel. America, on average, burns 372 MILLION gallons of fuel a day! Thats over 400 million barrels of oil...a day!! If my math is correct, ethanol fuel saves 93 million barrels of oil a day! And also saves the hydrocarbon waste associated with 33,945,000,000 barrels of oil A YEAR! Still think it's a scam?
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It is a scam.
You don't take into consideration the energy required to grow the crops and convert them to ethanol. The equipment working the ground, planting, irrigation, harvesting ALL require energy, and all of that energy combined with the lower BTU's of ethanol does NOT equal a savings of energy. Quite the opposite.
So yes, it's a total scam, funded by our tax dollars in the form of corn subsidies, and meant to buy votes and line the pockets of the political elite.
http://hubbert.mines.edu/news/Pimentel_98-2.pdf
Thanks 
