ADVANCED SYNTHETIC TURBINE LUBRICANTCORROSION INHIBITED GENERAL INFORMATION:ROYCO 899 is an advanced synthetic turbine engine oil designed for use in aircraft and stationary industrial gas turbine engines operating under severe conditions. This product is a 5 centistoke lubricant using state ofthe art additive technology and hindered polyol ester base oils resulting in a technologically superior gas turbine lubricant that combines excellent thermal - oxidative and hydrolytic stability, anti-wear protection, andabove all, rust and corrosion inhibition.