BlueSky Alto Syn VL 46 is a synthetic vacuum pump lubricant formulated with a high performance additive package. Alto refers to a series of BlueSky Lubricants designed for exceptional performance in most compressor, blower and vacuum pump applications. Syn VL refers to synthetic hydrocarbon vacuum lubricants formulated to provide an extremely low vapor pressure in vacuum pump applications. 46 represents the thickness of the oil which is an International Standards Organization Viscosity Grade (ISO VG) 46.
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