"Oil Viscosity for 2004 Hyundai Sonata Air Conditioning System"

2004 Hyundai Sonata AC PAG Oil

Does anyone know what is the best oil viscosity for a 2004 Hyundai Sonata air conditioning system?

Answer: According to my sources, PAG 46 oil for the A/C system is recommended. The factory sticker under the hood should tell you the total amount in the system.