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Old 12-15-2003, 07:44 PM
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To begin with, since the system was operating before dismantling, you had lost no oil except for what might have been in the compressor, which in most cases would be a minute quantity. Adding 4 to 5 ounces under such conditions is way too much.

Secondly, PAG oil which is what this stuff is will not circulate properly with R12. It is compatible in the sense that if there is a trace quantity in the system with the Mineral oil it will have little effect.

I know that my recommendations brought a frown to your face to think about all that work, but if you want the system to live, you really need to do it, and replace the filter drier while you're at it.

Best of luck,
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