BlueSky Cirrus Syn PG 680 is a synthetic lubricant providing the ultimate performance in industrial gear box and bearing applications. Cirrus Syn PG refers to a series of BlueSky Lubricants that are made of synthetic polyglycol-based base fluid that provides better wear protection, thermal and oxidation stability, and reduced sludge and deposit formation compared to petroleum and other synthetic based lubricants. While synthetic polyglycol based oils provide the ultimate protection for gear boxes and bearings that see extreme pressure and extreme temperature, they are incompatible with petroleum oils. Care should be taken to make sure the two types of fluids are not mixed. 680 represents the thickness of the oil which is an International Standards Organization Viscosity Grade (ISO VG) 680.
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