CITGO Ice Machine Oil 68 is a highly refined, pour depressed, paraffinic oil developed especially to lubricate ammonia compressors in industrial refrigeration systems. Designed primarily for the complete lubrication of industrial type evaporating ice machines and crankcases, cylinders and bearings of refrigeration compressors using ammonia refrigerant. Meets requirements of Frick Co. Refrigeration Oil #3. In addition to its use in refrigeration compressors, it is recommended for general oiling of bearings, open chains and linkages operating under conditions of mild unit loading and mild temperatures and humidity, where an additive type oil is not required.