Oil mixing question
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    Oil mixing question

    50:1 gas is 1 gallon of gas and 1.28 ounces of oil 25:1 is 2.56 ounces of oil. If I buy 50:1 premix gas would it be safe to just add another 1.25 ounces of oil to the can and run it in my auger?

    The premix stuff if non-ethanol and had stabilizer already in it.
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    The math seems to work. I'd error on the rich side.
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    That should work fine.
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    Quote Originally Posted by mark38090 View Post
    50:1 gas is 1 gallon of gas and 1.28 ounces of oil 25:1 is 2.56 ounces of oil. If I buy 50:1 premix gas would it be safe to just add another 1.25 ounces of oil to the can and run it in my auger?

    The premix stuff if non-ethanol and had stabilizer already in it.
    I understand the need to avoid ethanol but I can't endorse using any kind of pre-mix, I'm just not that faithful. Aside from that, oil/gas ratios by equipment and oil mfgrs are largely just guidelines. What most never consider from the get-go, is the factory jetting. If it's incorrect for the altitude and can't be altered through adjustment or replacement, the oil/gas ratio can and should be revised for optimum, average rpm plug burn. Reading the spark plug is the only way to determine proper jetting and mixture ratios on a two-stroke. I always start with what's recommended and tweak it from there.
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    Quote Originally Posted by kschilk View Post
    I understand the need to avoid ethanol but I can't endorse using any kind of pre-mix, I'm just not that faithful. Aside from that, oil/gas ratios by equipment and oil mfgrs are largely just guidelines. What most never consider from the get-go, is the factory jetting. If it's incorrect for the altitude and can't be altered through adjustment or replacement, the oil/gas ratio can and should be revised for optimum, average rpm plug burn. Reading the spark plug is the only way to determine proper jetting and mixture ratios on a two-stroke. I always start with what's recommended and tweak it from there.

    I think you're maybe just overthinking this a little bit. He lives in Florida, his altitude is maybe four feet, and he just doesn't want to burn up the engine in his auger. Personally I don't use ethanol in my mowers or other power tools I buy non-ethanol gas for the big mowers and I use the premix oil I buy at the hardware store for the weed eaters and other small pieces. The best way for you to get the information you need is to get on your phone, find the dealer that sells the same brand as what your auger is, and ask him the same question. Then you will know for sure.

    Don
    Last edited by BangBang; 04-13-2019 at 07:52 PM.
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    I know it's 25:1 but there's nowhere within an hour round trip to get non ethanol gas, that's why i was looking at the pre mix stuff. The only thing i can find though is 40:1 and 50:1 so i was trying to just add enough oil make it work.
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    Last edited by mark38090; 04-13-2019 at 08:35 PM.

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    Here, this will save your wrist and forearms.

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    Quote Originally Posted by rollin thunder View Post
    Here, this will save your wrist and forearms.

    But trade off shoulders back and hands.

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    Quote Originally Posted by mark38090 View Post
    50:1 gas is 1 gallon of gas and 1.28 ounces of oil 25:1 is 2.56 ounces of oil. If I buy 50:1 premix gas would it be safe to just add another 1.25 ounces of oil to the can and run it in my auger?

    The premix stuff if non-ethanol and had stabilizer already in it.
    Umm, don’t know where your math came from, but a gallon of gas is 128 ounces, so 50/1 ratio takes 2.56 ounces of oil (128/50).

    25/1 comes out to 5.12 ounces of oil.
    Last edited by 230JHP; 04-14-2019 at 01:00 PM.
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    Personally I would never consider putting ethanol into any of my yard equipment. EVER. That stuff ruins them. Luckily I have one station nearby that carries it. I always put Stabil in it no matter what time of year it is. The smaller engines get premix. As far as your situation you can buy 25:1. I don;t know what stores you have locally but I would hunt it down. Otherwise you can buy it over the internet.
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