" The CPI-1507 Series compressor lubricants are formulated using a premium polyalkylene glycol (PAG) base fluid combined with a high performance additive package. They are specifically formulated to give negligible dilution with hydrocarbon gases. These compressor lubricants feature excellent oxidative and thermal stability enabling the use of these lubricants over a wide range of temperatures without varnish or deposit formation. The high viscosity index (VI) and negligible hydrocarbon dilution enables the CPI-1507 Series lubricants to operate over wide ranges of temperature and gas composition with small changes in viscosity compared to other types of lubricants. The CPI-1507 Series fluids are especially advantageous in high temperature and heavy gas stream applications due to their excellent thermal and oxidative stability and negligible hydrocarbon dilution. Applications and Compressor Type Flooded rotary screw compressors Heavy hydrocarbon gas stream applications Centrifugal compressors Liquid ring vacuum pumps Features and Benefits Hydrocarbon insoluble Negligible dilution due to hydrocarbons in operation Excellent lubricity Increased efficiency and reduced cost of operation Oxidatively stable Longer system life High viscosity index Small viscosity changes over wide temperature ranges