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Author Topic: Ethanol Free 91 or 87 10% ?  (Read 456 times)

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Offline RGH423

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Ethanol Free 91 or 87 10% ?
« on: May 24, 2017, 07:49:43 AM »
We have a station that carries 91 Octane ethanol free gas. I currently have been using 87 octane with the Lucas Ethanol treatment. I only drive my TJ once a week, or to go play in the woods or local mud bogs.
Would there be any performance gains worth the extra 75 cents a gallon ?
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1997 TJ  2 1/2" RC Suspension 33" Dueler MT
4.0 TB with Spacer -  MBRP Cat Back

Offline Jeffy

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Re: Ethanol Free 91 or 87 10% ?
« Reply #1 on: May 24, 2017, 01:44:02 PM »
Really, I think it's going to be case by case situation.  Try it and see.
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Offline bootguy

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Re: Ethanol Free 91 or 87 10% ?
« Reply #2 on: June 18, 2017, 11:56:43 PM »
I run Ethanol Free 87 octane exclusively in all my vehicles.  I do get better mileage and my engine does run cleaner. I operate my 94 2 days a week as a DD and then weekends for play once a month.  It is a personal choice as believe I have less issues with my fuel system.
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1994 Jeep Wrangler, 2.5L, automatic, 2.5" lift, 4:88 gearing, 33" tires, 2.5" exhaust from manifold back, air restrictor removed.
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