PAG (Polyalkylene Glycol) refrigeration oil is fully synthetic lubricant with outstanding anti-wear property and superior thermal stability. It features excellent miscibility with R134a and R1234yf. Widely adopted for automotive A/C compressors, EV heat pumps and transcritical CO₂ refrigeration systems. Multiple viscosity grades are available to deliver balanced lubrication and heat transfer, minimizing compressor wear and ensuring reliable long-term operation.