Emkarate® RL170H is a cSt 170 synthetic polyol ester (POE) lubricant formulated specifcally for use in refrigeration and air-conditioning compressors using HFC refrigerants. This product provides effective wear protection for steel and aluminium surfaces for increased system life and improved effciency and is suitable for both initial fll and service fll. The combination of low temperature characteristics and unparalleled chemical and thermal stability enable the use of Emkarate® RL170H over a wide operating temperature range.