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Thread: Gas options

  1. #1
    Join Date
    May 2020
    Posts
    22

    Default Gas options

    I'm sure it's been talked about plenty, but I have the Raptor 6.2L, which has do I want to run? My options local are 87 no ethanol or 89 or 91 with ethanol.

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  2. #2
    Join Date
    Feb 2017
    Location
    Ontario
    Posts
    97

    Default

    This is from the Moomba Manual:

    Indmar 6.2L Engines
    Use a gasoline with a minimum octane rating of 89. See engine
    owner’s manual for more information.

    Indmar Marine Engines Manual:

    6.2L Indmar Engines 89 Octane

    I believe I read somewhere that the fuel can only have a maximum of 10% ethanol.
    2020 Moomba Kaiyen > Finally on my lift!
    2017 Moomba Mondo > Traded
    2000 Moomba Kamberra > Traded

  3. #3
    Join Date
    May 2018
    Posts
    1,703

    Default Gas options

    89 with up to 10% ethanol.

    Do not run 87.

    If you run 10% ethanol use startron
    Star Tron Enzyme Fuel Treatment - Concentrated Formula 32 oz - Treats 512 Gallons https://www.amazon.com/dp/B0014419UQ..._2Po0EbSM8D16G

    or stabil 360 marine.
    STA-BIL (22240) 360 Marine Ethanol Treatment and Fuel Stabilizer - Prevents Corrosion - Helps Clean Fuel System For Improved In-Season Performance -Treats Up To 320 Gallons, 32 fl. oz. https://www.amazon.com/dp/B001CAW2DK..._.Qo0Eb7MC0E64


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    2018 Supra SA 400
    Michigan

  4. #4
    Join Date
    Oct 2016
    Location
    Wisconsin
    Posts
    268

    Default

    I run 91 octane just because thats the only grade without Ethanol.
    2019 Mondo

  5. #5
    Join Date
    Jun 2008
    Location
    Henderson, NV
    Posts
    5,612

    Default

    ymmv but for us over the last 14 years we use 89 and don't worry about ethanol in the summertime. a tank or 2 before winter we switch to premium non ethanol as that gas will lay up better than ethanol blended fuels over the winter. does not negate the need to run a gas prep like sta-bil for storage tho.
    we don't use treatments during the summer as it's a waste of monies if you are using the boat every couple of weeks. these are just glorified car engines.
    '06 Supra Launch 20SSV-gone but never forgotten

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