Fuel Mixture Fuel oil mixture

Discussion in '2-Stroke Engines' started by Rusty513, Jul 23, 2007.

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  1. Rusty513

    Rusty513 Guest

    I have an 80cc engine. Am I correct in saying that it is 4 oz. of oil per 1 gallon of gas??

  2. gone_fishin

    gone_fishin Guest

    depends on the ratio you're shooting for...your formula would be 32:1

    128 ozs to a gallon divided by desired ratio (32) = 4ozs
  3. Rusty513

    Rusty513 Guest

    Thank you, yeah I forgot to say that I want 32 to 1
  4. gone_fishin

    gone_fishin Guest


    just to repeat the juicy part for anyone searching for "fuel oil mixture" in the future

    128 ozs to a gallon divided by desired ratio = _ozs oil

    1000 ml to a liter divided by desired ratio = _ml oil
  5. Herrmanator8

    Herrmanator8 Guest

    i use one of those "fuel rite" mixing cups shaped like an upside down cone. just pour in the oil to the desired ratio,and voila, you got a spicy one gallon fuel oil mixture. this all might somehow be irrelevant. you should get one of those ratio cups, at your local NAPA or lawn equipment store, etc.

  6. bamabikeguy

    bamabikeguy Active Member

    fyi- if you are in a bind on a "fill up on the road", without pre-mixed, the cap of a small bottle of 2 cycle oil holds approx 4-4.5 mm.

    With my ratio/tank size, 4 capfuls does a tank, 2 caps does a half. Important when traveling long distances.

    When you fillup on the road, you can "get close" to standards if you know beforehand how many mm.s you need per tank, divide by 4 and add that many capfuls of oil.

    Or carry a syringe, 30 cents at a veternarians office.
  7. rcjunkie

    rcjunkie Guest

    Try running her at 5 oz of oil per gallon and no less.
  8. azbill

    azbill Active Member

    that's the ratio me n azvinnie use (25:1)
    with the heat here in the desert, It is good to have the extra lubrication