Refrigerant Diagnosis-Gauge Hookup, Leak and Oil Level Testing

The oil used to lubricate the compressor circulates in the system while the compressor is operating. Whenever replacing any component of the system or when a large amount of gas leakage occurs, add oil to maintain the original total amount of oil.

Total amount of oil in the system : 154cc (5.13 us fl.oz)

Compressor for R-134a : 170-190cc (104-11.6 cu.in)