BlueSky Alto Syn BL 320 is a synthetic blower 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 BL refers to synthetic positive displacement blower lubricants formulated with the highest quality synthetic base fluids and additives providing extended lubricant life of up to 8000 hours. 320 represents the thickness of the oil which is an International Standards Organization Viscosity Grade (ISO VG) 320.
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