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Thread: Auto AC

  1. #1
    Join Date
    Feb 2006
    Location
    SouthEastern Virginia
    Posts
    1,075

    Auto AC

    A few years ago I replaced the compressor on my Dodge Dakota and converted to R-134A. It has never cooled very well so I got some R12. Can I leave the POE in the system or do I have to replace it with mineral oil?
    It might get loud!

  2. #2
    Join Date
    Aug 2007
    Location
    Winter Haven, FL
    Posts
    4,367
    It probably didn't cool well because the r-12 condensers were too small to run 134a.
    Myself, I would change the condenser, and drier. Its a lot cheaper than a compressor.

  3. #3
    Join Date
    Feb 2010
    Location
    Ontario Canada
    Posts
    1,341
    You need to replace the POE.
    Mineral oil is best for R12.
    Did you buy the new compressor with POE in it?
    You should try R12a, if you can get it. You do not need to change the oil just evacuate the system. Runs much colder that 134a or 12

  4. #4
    Join Date
    Jan 2010
    Posts
    6,239
    Quote Originally Posted by duke of earl View Post
    A few years ago I replaced the compressor on my Dodge Dakota and converted to R-134A. It has never cooled very well so I got some R12. Can I leave the POE in the system or do I have to replace it with mineral oil?
    Maybe try Hot Shot it will work with both.

  5. #5
    Join Date
    Feb 2006
    Location
    SouthEastern Virginia
    Posts
    1,075
    The compressor is fine. Just wondering if R12 is compatible with poe.
    It might get loud!

  6. #6
    Join Date
    Jul 2008
    Location
    Denver, CO
    Posts
    4,229
    Yep, it sure is.

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