RENISO ACC 68 is a fully synthetic refrigeration oil based on special double end-capped polyalkylene glycols (PAG). Highly effective additive systems ensure optimal wear protection even under unfavourable operating conditions. Due to its unique formula RENISO ACC 68 shows good miscibility properties at low oil concentrations with the refrigerant CO2 (R744). RENISO ACC 68 guarantees excellent wear protection and a very high thermal and chemical stability under CO2 atmosphere. Developed for transcritical CO2 applications like air-conditioning or heat pump systems.RENISO ACC 68 fulfills and exceeds DIN 51503 KB. Approved by BITZER and DORIN.