Octane?

Discussion in 'Bubba's Outboards' started by glenmorebuckman, Mar 16, 2007.

  1. glenmorebuckman

    glenmorebuckman New Member

    Messages:
    153
    State:
    Caneyville, Ken
    What octane gas should be used in older outboards? I have a 1969 Merc 350 35h.p. and run 87. Would premium gas help keep carbon down?
     
  2. Bobpaul

    Bobpaul New Member

    Messages:
    3,039
    State:
    Supply NC
    Run 87 octane and save your money. No gas is designed for 2 stroke outbards, but 87 is the most recommended.
     

  3. jim

    jim New Member

    Messages:
    2,579
    State:
    Jacksonville NC
    Add fuel stabilizer which will help keep the carbon down or occasionally run a can of carbonguard or something similiar through your engine.SEAFOAM also works well I'm told.:smile2:
     
  4. clintonhawg1

    clintonhawg1 New Member

    Messages:
    177
    State:
    indiana
    I have ran 87 and 92 and really there was know difference that i could tell but i do run the seafoam in all my tanks now.
     
  5. Bobpaul

    Bobpaul New Member

    Messages:
    3,039
    State:
    Supply NC
    Your engine can tell the difference between 87 and 92.