The 2006 Honda Pilot uses R-134a refrigerant (HFC-134a). It does not use the newer R-1234yf refrigerant.
Understanding the correct refrigerant type and related lubrication is essential for proper cooling performance and to avoid damaging the AC compressor. This model year’s system is designed for R-134a with PAG oil and standard service procedures.
Refrigerant type and lubrication specifics
Before servicing the air conditioning system, keep these key points in mind:
What you should know before refilling
- Use automotive-grade R-134a refrigerant only; do not mix with other refrigerants or blends.
- Use the correct lubrication: PAG oil appropriate for R-134a systems (commonly PAG-46). Do not use mineral oil or ester oils unless specified by Honda.
- Follow the vehicle's service label or owner's manual for the exact charge amount and charging procedure, and have the system evacuated and recovered before opening it.
- Check for leaks and ensure the system is properly vacuumed before charging to avoid moisture contamination.
Following these guidelines helps ensure proper cooling performance and protects the AC compressor and seals from damage.
Where to verify details
For the most precise information, consult the 2006 Honda Pilot service manual or the under-hood refrigerant label. These sources provide the exact charge amount, oil type, and any model-specific notes.
Summary
In short, the 2006 Honda Pilot requires R-134a refrigerant with PAG oil. Use only the correct type, follow official charging procedures, and have any system service performed by a trained technician to ensure safe and effective air conditioning operation.


