Operation CHARM: Car repair manuals for everyone.

Refrigerant Oil






R134a Refrigerant Oil

Depending on the type of A/C compressor, different refrigerant oil capacities are intended for the refrigerant circuit.

Refrigerant circuit may only be filled with approved refrigerant oils.

Zexel / Valeo, Sanden and Denso A/C compressors require different refrigerant oils.