Refrigerant Oils: Notes

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NOTE: PAG oils absorb moisture very rapidly, 2.3-5.6 percent by weight, as compared to a mineral oil absorption rate of 0.005 percent by weight.

Use ONLY the specified oil for the appropriate system or A/C compressor. Always check vehicle underhood A/C specification label or A/C compressor label before adding refrigerant oil to A/C compressor/system. See Figure and Figure . Most of the common refrigerant oils are listed below. Always use refrigerant oil specified in underhood A/C specification label or A/C compressor label.