What is the fuel to oil ratio for a 2 stroke 9.9hp Mercury outboard?


BTW it’s a 2002 model. Also any sugestions for what is the best oil would be appreciated?



4 responses to “What is the fuel to oil ratio for a 2 stroke 9.9hp Mercury outboard?”
  1. biff says:

    Ratio is 50 to1. Any good brand is ok.Make sure it is 2 cycle oil for out boards.!

  2. R P says:

    A pint of oil for 6 gal. gas. 50 : 1

  3. jim1 says:

    use merc oil and use the ratio on container

  4. Jack says:

    50 : 1 no matter what kind of oil or how much gas you mix
    dont use quicksilver, super tech, Penzoil, or Mystik outboard oil they all burn to carbon which tends to stick to your motor use a brand that burns to ash it wont stick to your motor as much. the johnson evinrude oil is a good one to use.

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