The 2007 Buick Lucerne uses R-134a refrigerant (also known as HFC-134a) for its air conditioning system.
For owners, this means the A/C system is designed for R-134a with PAG oil, and it is not compatible with older R-12 refrigerant or with the newer R-1234yf used in some newer vehicles. Proper charging requires the correct refrigerant, oil type, and equipment, and service should follow GM specifications or be performed by a qualified technician.
Refrigerant type and service guidelines
The Lucerne’s A/C system is engineered specifically for R-134a refrigerant. Using the wrong refrigerant can damage seals, reduce cooling efficiency, and affect system longevity. The lubrication for R-134a systems is typically PAG oil, with GM vehicles commonly using PAG-46, though you should verify the exact specification in the service data for your car.
- Refrigerant: R-134a (HFC-134a)
- Lubricant: PAG oil appropriate for R-134a (commonly PAG-46 on GM vehicles)
- Compatibility: Do not use R-12 or R-1234yf in this system
- Charging notes: Use proper R-134a service equipment and follow the vehicle’s service data for quantities and procedures
- Safety and diagnostics: Check for leaks, use UV dye if needed, and service with appropriate precautions
Before charging, confirm the correct refrigerant and oil specifications for your vehicle.
Always verify the exact charge amount and oil specification from the vehicle’s service manual or GM service data for your model year and configuration, as there can be variations.
Summary
In short, the 2007 Buick Lucerne takes R-134a refrigerant. Use the correct refrigerant and PAG oil, follow proper service procedures, and consult official GM data or a certified technician for precise charging requirements and safety guidelines.