Subaru BRZ 2017 Owner's Manual page 511

Refrigerant for your climate control system
Your air conditioner uses ozone friendly refrigerant HFO-1234yf or
HFC134a.Therefore, the method for adding, changing or checking
the refrigerant is different from the method for CFC12 (freon). Also,
the methods for adding, changing or checking HFO-1234yf and
HFC134a refrigerant are different. Before adding, changing or check-
ing the refrigerant, check the air conditioner label in the location
shown in the illustration to confirm which type of refrigerant is used in
your vehicle. We recommend that you consult your SUBARU dealer
for service. Repairs needed as a result of using the wrong refrigerant
are not covered under the warranty.
Air conditioner label
Name of refrigerant
Name of compressor oil
6-1. Specifications
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