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FUCHS RENISO PG 68 is an ultra-dried, fully synthetic refrigeration compressor lubricant formulated from high-performance polyalkylene glycols (PAG). With an ISO VG 68 viscosity grade, it is specifically engineered for industrial and commercial refrigerating systems operating with ammonia (NH3, R717) in direct expansion (DX) circuits, as well as systems using hydrocarbon refrigerants. The oil offers exceptional thermal and chemical stability under high operational temperatures and heavy thermal loads. Its extremely high viscosity index ensures optimal viscosity-temperature performance, providing reliable low-temperature fluidity alongside a strong, wear-resistant oil film at elevated temperatures. Additionally, FUCHS RENISO PG 68 provides robust wear and corrosion protection for internal compressor components, helps maintain overall system efficiency, and meets the DIN 51503 KAB specification for ammonia-soluble lubricants.