CAMCO PAG 42 Series are custom blended polyalkylene glycol (PAG)/ester rotary screw air compressor lubricants. This formulation offers improved lubrication at high and low temperatures, reduced volatility, and high viscosity index, plus excellent corrosion protection. CAMCO PAG 42 Series are long life lubricants formulated with rust and oxidation inhibitors. Other viscosities are available for specific applications. CAMCO PAG 42 Series will not leave behind carbon residue/varnish when it oxidizes as compared to hydrocarbon based products.