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  1. 23-06-2004, 08:02 PM #1
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    neil sailes
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    Drop in replacements

    Hey All
    It is a known fact that you cannot place a HFC refrigerant into a cfc hermetic compressor system without Crystalising the mineral oil.
    So why is it that the chemical composition for the R12 drop in replacement R413a is composed of 88% of R134a.
    Wouldn't this cause the original mineral oil to crystalise?
    Neil
    Last edited by neil sailes; 23-06-2004 at 08:06 PM.
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