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FUCHS RENISO PAG 1234 is a fully synthetic refrigeration compressor oil formulated from advanced double-end-capped polyalkylene glycols (PAG). With an ISO VG 46 viscosity grade, it is specifically designed for mobile air conditioning (MAC) systems in passenger cars and commercial vehicles using R1234yf (HFO-1234yf) as well as conventional R134a refrigerants. The fluid features exceptional thermo-chemical stability and enhanced refrigerant miscibility to guarantee safe oil transport and reliable lubrication throughout the entire cooling circuit. Its high-performance anti-wear additive system delivers robust protection for all common compressor types, including axial piston compressors, even under demanding operational conditions. Additionally, FUCHS RENISO PAG 1234 displays excellent viscosity-temperature behavior, ultra-low moisture content, and outstanding flow properties at low ambient temperatures.