BlueSky Alto Syn SB 46 is a synthetic blended lubricant providing outstanding performance in compressor applications. Alto refers to a series of BlueSky Lubricants designed for exceptional performance in most compressor, blower and vacuum pump applications. SB is a series of lubricating oils designed with a blend of synthetic and petroleum base fluids. 46 represents the thickness of the oil which is an International Standards Organization Viscosity Grade (ISO VG) 46.
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