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  1. 12-31-2018, 12:08 PM #1
    basscat22
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    Question Ok to run higher octane fuel.

    So I final got non ethanol fuel in my area. But its 93 octane. Will it be ok to run in a 09 200 optimax.
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  2. 06 SB
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    #2 12-31-2018, 05:13 PM
    No way I would. 89 would be the highest IMO. Just use the right additives and don’t sweat it.

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  3. EuropeanAM
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    #3 01-10-2019, 03:11 PM
    See FAQ in the 3L Mercury Section, specifically:

    Oil, Battery, Spark Plugs, Fuel and Fuel Additive Recommendations


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