Stability Characteristics of Turbine Oils

This paper reviews the phenomena of turbine oil oxidation, its effects on turbine lubrication, and the use of inhibitors. Service data on an inhibited turbine oil, free from asphaltene-forming constituents, manufactured by the author’s company and used in 560 turbines, are presented. These data show a retention of essential properties after 14 years of service. The problem of turbine corrosion is briefly dealt with, responsibility for its prevention being placed upon designers and operators as well as upon oil refiners.