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Oil Specification: Notes

WARNING: This page is about a different car, the 2017 Kia Soul EV. However, it is still accessible from the selected car via links, so may be relevant.
  1. The HFC-134a system requires synthetic compressor oil (POE) whereas the R-12 system requires mineral compressor oil. The two oils must never be mixed.
  2. Compressor oil (POE) varies according to compressor model. Be sure to use oil specified for the model of compressor.
    • Since the electric compressor uses high-voltage, POE oil with high volumetric resistivity should be used.
    • Do not use the same A/C recovery/charging station as conventional belt-driven compressors.
    WARNING:
    • If the POE oil of the system gets mixed with PAG oil, then dielectric breakdown due to decreased volumetric resistivity can occur and inoperative A/C compressor may result, A/C compressor may not work.
    • If the POE oil gets mixed with PAG oil, replace the compressor with new one and clean inside the A/C system (condenser, refrigerant line, evaporator and etc.)
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