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  1. #1
    Member
    Join Date
    Mar 2006
    Location
    NJ
    Posts
    3,058

    USA What octane gas for a 2002 Yamaha. 225 hp 3.1 liter OX66 ?

    Can I run 87 octane or safer with 89-just got boat so figuring out all the little items with it. Thanks Guys!

  2. Member
    Join Date
    Jul 2014
    Location
    KALKASKA MICHIGAN
    Posts
    4,123
    #2
    The OX is not as picky but I always ran the highest non ethanol pump fuel I could find in all my outboards. Your call. CJ
    2002 X19 200HP OX66 HO Vmax,HPDI lower, it lives, thanks Hydro Tec.

  3. Member
    Join Date
    Jan 2013
    Location
    Winterville, GA
    Posts
    1,267
    #3
    I have a 2000 225 OX66, I use both 87 and 89, no issues.