Ethanol free fuel

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wahoowad

Minister of Fire
Hearth Supporter
Dec 19, 2005
1,685
Virginia
I like to keep a couple 5-gallon containers of gas at home for emergencies and use it to fuel my small generator, riding mower and chainsaws. I use Stabil and try to refill each 5-gallon container every 6 to 8 months. I never gave much credence to ethanol worries but am now onboard with avoiding it for my home power equipment after some recent fuel system repairs.

I can only find 87 octane e-free fuel in my area yet my Stihl and other equipment want 89 octane. Is there an additive that can bump up the octane without significantly increasing the cost?
 
I recommend Klotz Octane Booster, some others use alcohols as the octane ingredient.
 
Yeah, octane boost should be want you need.

You should count yourself blessed that you are even able to get ANY ethanol free gas at all in your area.;)
 
Octane boost will work. Just keep in mind that on the instructions on the back it will say add XXX ounces to XX gallons to raise the octane 2-3 (or whatever) points. Each point is not a full number, it is a decimal. So if a single bottle will treat 20 gallons and will raise the octane of regular 87 octane gas by 5-10 points....it wont raise the octane to 92-97, it will raise it to 87.5 to 88.0.
 
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[Hearth.com] Ethanol free fuel


92 octane, ethanol free. A little bit expensive, but what's $6 when you're running a $600 Stihl?
 
Have you tried to run them on 87? Octane does nothing more than retard ignition. Needing higher octane becomes more of an issue when it really hot out (pinging) ,it should run fine on 87. Less than 4-5 months sit time should not be an issue with ethanol. I usually just run the ethanol fuel and try and burn all my summer fuel up before winter then refill my emergency cans so I'm rotating through fuel all the time. I use seafoam when I put them away for the winter. I have never had any luck with stabil, always hard starting come summer time and I end up dumping all the fuel anyway. .
 
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