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  1. #14
    Join Date
    Apr 2001
    Location
    Camel City, NC
    Posts
    6,233
    Since g man understands subcooling and superheat, let's not go there PS Good help R12.
    Be safe not fast. body parts don't grow back

  2. #15
    Join Date
    Dec 2004
    Location
    Winnipeg,Canada
    Posts
    5
    I've changed many 502 racks to 507. You must change the oil several times until you only 5% of your old oil left. We used 32 CF poe. 507 has worked excellent for us in low temp applications.

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