Oil Injection Using a Fluorescent Dye Injector/Refrigerant Oil Injector Set

WARNING: This page is about a different car, the 2018 Lincoln MKT. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Fluorescent refrigerant system dye is added to the refrigerant system at the factory to assist in refrigerant system leak diagnosis using a Rotunda-approved UV black light. It is not necessary to add additional dye to the refrigerant system before diagnosing leaks, even if a significant amount of refrigerant has been removed from the system. Replacement suction accumulators, receiver driers and receiver drier elements are shipped with a fluorescent dye wafer included in the desiccant bag which dissolves after approximately 30 minutes of continuous A/C operation. It is not necessary to add dye after flushing the refrigerant system because a new suction accumulator, receiver drier or receiver drier element is installed as part of the flushing procedure.

NOTE: Before using the R-134a Fluorescent Dye Injector/Refrigerant Oil Injector Set for the first time, refer to the equipment manufacturer's instructions.

NOTE: Refrigerant system pressure should be between 413-551 kPa (60-80 psi) at 24 ° C (75 ° F) with the engine off and cool.

Evacuate the refrigerant system. For additional information, refer to Air Conditioning (A/C) System Recovery, Evacuation and Charging .
Assemble the dye/oil injector using the correct adapters to match the amount of refrigerant compressor oil to be injected.
Verify that all the valves on the dye/lubricant injector are closed.

Courtesy of FORD MOTOR COMPANY
Fill the dye/oil injector with the correct amount of clean, new PAG oil.

Courtesy of FORD MOTOR COMPANY
Install the dye/oil injector between the low-side service gauge port valve and the R-134a Air Conditioning Service Unit or R-134a Air Conditioning Manifold Gauge Set.
NOTE: Make sure all tools and hoses are clear of the engine cooling fan and drive belt before starting the engine. Failure to keep tools and hoses clear from the engine cooling fan and drive belt results in damage to the tools and/or vehicle.

Open all valves and charge the refrigerant system. For additional information, refer to Air Conditioning (A/C) System Recovery, Evacuation and Charging .