ethonal free 87 vs. 89 with 10% ethanol

Discussion in 'Alternative Fuel Forum' started by Geo2199, Apr 23, 2014.

  1. Geo2199

    Geo2199 LawnSite Member
    Posts: 151

    A new gas station opened up by my house that offers ethanol free 87 gas for 15 cents more than 89 with ethanol. I know how bad ethanol is for lawn mowers and 2 stroke motors in my handhelds. I also know mowers and handhelds need 89 octane to prevent pre detonation on hot summer Ga days that I cut in.

    So what should I use and which is better? Lower octane 87 without ethanol or stick with the higher octane 89 with 10% ethanol for my mowers and handhelds?
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  2. Twinlakes

    Twinlakes LawnSite Member
    Posts: 129

    Lower octane without ethanol for sure. You can check AG commissioner sticker to validate.
    I have a station in-town that sells ETHANOL-free across the board. 87,89,93 are all ethanol-free.
    Costs more but worth it vs. having to use Premium for everything.

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