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Two-stroke oil....absolutely necessary?

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  • 02-07-2019 10:09am
    #1
    peking97
    Registered Users Posts: 856 ✭✭✭


    Just wondering is is absolutely necessary to use two-stroke oil in the premix for a two-stroke engine or will any good quality oil suffice?


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    #2
    TheBully
    Registered Users Posts: 876 ✭✭✭TheBully


    peking97 wrote: »
    Just wondering is is absolutely necessary to use two-stroke oil in the premix for a two-stroke engine or will any good quality oil suffice?

    Is this a serious question?


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    #3
    Danzy
    Registered Users Posts: 13,826 ✭✭✭✭Danzy


    There would be a great chance of permanent damage.

    The oils are used differently in the 4 vs 2 engine.


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    #4
    Danzy
    Registered Users Posts: 13,826 ✭✭✭✭Danzy


    Which is not the answer you want when you are waiting for dew to dry off the grass and have a can of the different oil.


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    #5
    peking97
    Registered Users Posts: 856 ✭✭✭peking97


    TheBully wrote: »
    Is this a serious question?

    Of course its a serious question! Isn't lubrication the whole point of using oil? Do you reckon 4-stroke oil loses its lubricating qualities if used in a 2-stroke engine?


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    #6
    4Ad
    Registered Users Posts: 2,718 ✭✭✭4Ad


    You DEF need 2 stroke oil in the mix, otherwise you will seize the piston in the barell of the engine.
    2 Stroke oil Only.


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    #7
    magicbastarder
    Moderators, Category Moderators, Arts Moderators, Sports Moderators Posts: 49,495 CMod ✭✭✭✭magicbastarder


    https://www.youtube.com/watch?v=c4J76MgdyQc

    TLDW; seems to run dirtier but that chap found no damage after running for an hour with 4-stroke oil.


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    #8
    standardg60
    Registered Users Posts: 4,696 ✭✭✭standardg60


    It's probably ok in an emergency but I wouldn't advise it permanently, 4stroke is designed to be used long term so it's thicker viscosity would imo clog a 2stroke engine over time.
    To answer another question it is perfectly ok to use a 2stroke mixed petrol in a 4stroke engine ( obviously with 4stroke oil in the oil tank).


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