4 Runner 2WD V6-4.0L (1GR-FE) (2006)
Refrigerant Oil: Capacity Specifications
Toyota gives the following formula for refrigerant oil replacement:
Standard: Oil capacity inside new compressor {120 + 15 cc (4.0 + 0.5 fl. oz.)} - Remaining oil amount in removed compressor assy = Oil amount to be
removed before installation