Turbine Engine Oils - VPS Lubricants
Turbine Engine Oils - VPS Lubricants
Turbine Engine Oils - VPS Lubricants
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NOTES108<strong>Turbine</strong> <strong>Engine</strong> <strong>Oils</strong>Table continuedPROPERTIES MIL-PRF-23699F TYPICALGrade STDCorrosion & 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 % 102 123.7Bearing Test RigType 1 1 ⁄2 conditions– Overall deposit demerit rating 80.0 max 32.2– viscosity change @ 40°C % –5 to +30 +13.3– Total Acid Number changemgKOH/g 2 max 1.04– filter deposits g 3 max 0.235Sonic shear stability– viscosity change @ 40°C % 4 max 0.6Trace metal content Must pass PassSediment mg/l 10 max 0Ash mg/l 1 max 0<strong>Turbine</strong> <strong>Engine</strong> <strong>Oils</strong>109www.shell.com/aviationThe AeroShell BookEdition 18 2003
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