Other information:
Specification
Item
Specification
Coil Resistance (Ω)
6.9 - 7.9 [20°C(68°F)]
...
Oil Specification
1.
The HFC-134a system requires synthetic (PAG) compressor oil whereas
the R-12 system requires mineral compressor oil. The two oils must never
be mixed.
2.
Compressor (PAG) oil varies according to compressor ...