How much r 134a oil do you use in your a c system?

The amount of R-134a oil required for an AC system typically ranges from 4 to 8 ounces, depending on the vehicle make and model. It's essential to consult the manufacturer's specifications for the exact amount, as overfilling or underfilling can affect system performance. Additionally, if the system has been fully evacuated and serviced, the oil amount may need to be adjusted accordingly. Always ensure the correct type of oil is used, as specified for R-134a refrigerant systems.