The 2016 Buick Encore uses R-134a refrigerant. R-1234yf is not used in this model year.
Freon is a term commonly used to refer to automotive air-conditioning refrigerants. In the 2016 Encore, the A/C system relies on a conventional R-134a circuit and typically requires PAG oil during service. Proper service usually involves recovering the existing refrigerant, checking for leaks, evacuating the system, and recharging with the correct amount and type of refrigerant per GM specifications.
Refrigerant Type and Why It Matters
The Encore's cooling system was designed around R-134a, which has been standard in many GM vehicles for years. Some later models adopted the lower-GWP refrigerant R-1234yf, but the 2016 Encore remains an R-134a system. Understanding the correct refrigerant is important for performance, system compatibility, and environmental considerations.
Environmental considerations
R-134a has a higher global warming potential than R-1234yf. Vehicles that still use R-134a require proper recovery and disposal practices to minimize environmental impact. If you’re shopping for a retrofit or replacement, know that converting an older R-134a system to R-1234yf is not a simple swap and requires a comprehensive assessment by a qualified technician.
Service Guidelines for the A/C System
To recap the typical service workflow for the Encore’s A/C system, technicians generally follow a careful sequence that protects API compatibility and avoids cross-contamination of refrigerants and lubricants.
- Recover the existing refrigerant with an approved recovery machine.
- Check the system for leaks and address any found issues.
- Evacuate the system to a deep vacuum to remove moisture and air.
- Recharge with the correct amount of R-134a refrigerant as specified by GM for the 2016 Encore.
- Add the appropriate PAG oil if the system has been opened or if components were replaced (GM often specifies a PAG oil type, commonly PAG-46, for R-134a systems).
- Run the A/C, monitor pressures, and verify cooling performance and temperature drop.
Following these steps helps ensure the system operates as designed and reduces the risk of damage from improper charging or contamination.
Additional Considerations
Several practical notes can help you avoid common pitfalls when servicing or refilling the A/C system in a 2016 Buick Encore.
- Always use the correct refrigerant (R-134a) and avoid attempting to charge with R-1234yf unless the system has been confirmed to require it by GM documentation.
- Do not mix refrigerants or oils. If a mix has occurred, the system may need flushing and component replacement.
- Consult the vehicle’s service label under the hood or the GM service manual for the exact oil type and refrigerant capacity.
- Have a professional perform A/C maintenance if you’re not equipped with the proper recovery and charging equipment.
These practices help protect the integrity of the A/C system and minimize environmental impact.
Summary
The 2016 Buick Encore uses R-134a refrigerant, with PAG oil as needed for servicing. When servicing the system, recover and recharge using the proper refrigerant and oil per GM specifications, and avoid mixing refrigerants. If you’re unsure, consult the owner’s manual or a certified technician to ensure a correct and safe recharge.