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Refrigerant Oil Adding

WARNING: This page is about a different car, the 2017 Lincoln Navigator and 2017 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: During normal A/C operation, oil is circulated through the system with the refrigerant, and a small amount is retained in each component. If certain components of the system are removed, some of the refrigerant oil will go with the component. To maintain the original total oil charge, it is necessary to compensate for the oil lost by adding oil to the system with the new part.

  1. 1.

    Refer to the chart below for refrigerant oil adding amounts when new components are installed.
    Component PAG (polyalkylene glycol) Refrigerant Compressor Oil (YN-12-D) Oil Amount (fl oz (ml)) Method of Adding
    After installing the A/C Compressor. Service compressor contains full system charge of oil. Oil matching required plus amount collected during recovery. Add directly to A/C compressor before installation
    After installing the receiver/drier. 2 fl oz (60 ml) plus the amount collected during refrigerant recovery. Inject to low-side service port during system charging.
    After installing the receiver/drier element. 1 fl oz (30 ml) plus the amount collected during refrigerant recovery. Inject to low-side service port during system charging.
    After installing the condenser core. 1.5 fl oz (45 ml) plus the amount collected during refrigerant recovery. Add directly to inlet port or inject to low-side service port during system charging.
    After installing the condenser core, and the receiver/drier element 2 fl oz (60 ml) plus the amount collected during refrigerant recovery. Add directly to inlet port or inject to low-side service port during system charging.
    After installing the evaporator core. 1.5 fl oz (45 ml) plus the amount collected during refrigerant recovery. Add directly to inlet port or inject to low-side service port during system charging.
    After installing/reassembling the thermostatic expansion valve. Amount collected during refrigerant recovery. Inject to low-side service port during system charging.
    After installing a refrigerant Hose/Line. 2 fl oz (60 ml) plus the amount collected during refrigerant recovery (1) Inject to low-side service port during system charging.
    After an O-ring Leak Repair. 1 fl oz (30 ml) plus the amount collected during refrigerant recovery (2) Inject to low-side service port during system charging.
    After a service port leak repair. Amount collected during refrigerant recovery. Inject to low-side service port during system charging.
    (1) If an excessive amount of PAG (polyalkylene glycol) Refrigerant Compressor Oil YN-12-D is lost due to a hose rupture/separation or other damage, the total system PAG (polyalkylene glycol) Refrigerant Compressor Oil YN-12-D capacity must be added. Also, it is necessary to replace the receiver/drier.
    (2) The amount specified may be used for one or multiple O-ring leak repairs. Do not multiply the PAG (polyalkylene glycol) Refrigerant Compressor Oil YN-12-D amount by the number of O-ring leaks being repaired.
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