Turbine Engine Oils - VPS Lubricants
Turbine Engine Oils - VPS Lubricants
Turbine Engine Oils - VPS Lubricants
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NOTES112<strong>Turbine</strong> <strong>Engine</strong> <strong>Oils</strong>Table continuedPROPERTIES MIL-PRF-23699F TYPICALGrade C/ICorrosion & Oxidation Stability72 hrs @ 175°C Must pass Passes72 hrs @ 204°C Must pass Passes72 hrs @ 218°C Must pass PassesRyder Gear Test, Relative RatingHercolube A % 102 min 113Bearing corrosion Must pass PassesBearing Test RigType 1 1 ⁄2 conditions– Overall deposit demerit rating 80.0 max 35– viscosity change @ 40°C % –5 to +30 +17.3– Total Acid Number changemgKOH/g 2 max 0.57– filter deposits g 3 max 0.3Sonic shear stability– viscosity change @ 40°C % 4 max 0.1Trace metal content Must pass PassesSediment mg/l 10 max 0Ash mg/l 1 max 0<strong>Turbine</strong> <strong>Engine</strong> <strong>Oils</strong>113www.shell.com/aviationThe AeroShell BookEdition 18 2003
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