Certified A/C Pro R-1234yf PAG 46 Low Viscosity AC Refrigerant Oil. This product contains approximately 8 fluid ounces of PAG 46 refrigerant oil for R-1234yf systems. This oil features a low viscosity PAG oil lubricant for R-1234yf auto A/C systems; ISO 46 viscosity. The PAG Low Viscosity AC Oil Lubricant for R-1234yf Auto A/C Systems helps quiet noisy compressors. Meets OEM specifications. Product Features:Certified A/C Pro R-1234yf Refrigerant Oil (8 fluid ounces)Low viscosity PAG oil for R-1234yf auto A/C systemsMeets OEM specifications