Gargoyle Arctic Oil 68 NH is a fully synthetic lubricant that is specifically designed for use in refrigeration compressors that use ammonia as the refrigerant. It is formulated with wax-free, synthesized hydrocarbons of polyalphaolefin (PAO) and synthetic Alkylbenzene base oils, which provide outstanding resistance to thermal/oxidative degradation. This makes it ideal for use in harsh environments where the compressor is subjected to high temperatures and pressures. Gargoyle Arctic Oil 68 NH also offers a number of other benefits, including: Excellent low temperature fluidity, even down to -40F (-40C) Reduced sludge and deposit formation Improved evaporator efficiency Long oil life Good compatibility with seals Limited risk of oil leakage Low volatility Gargoyle Arctic Oil 68 NH is recommended for use in screw or reciprocating refrigeration compressors in plants using ammonia as the refrigerant. It is compatible with mineral lubricants, but in case of switch over, performances or be