Other information:
Inspection
1.
Connect the battery voltage and check the blower motor rotation.
2.
If the blower motor does not operate well, substitute with a known-good
blower motor and check for proper operation.
3. ...
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 ...