ASTMD5704-17StandardTestMethodforEvaluationoftheThermalandOxidativeStabilityofLubricatingOilsUsedforManualTransmissionsandFinalDriveAxlesisastandardizedproceduredevelopedbyASTMInternational.Thistestmethodisdesignedtoassessthethermalandoxidativestabilityoflubricatingoilsspecificallyusedinmanualtransmissionsandfinaldriveaxles.Thetestevaluatestheoil'sabilitytoresistdegradationunderhigh-temperatureandoxidativeconditions,whicharecommonintheseapplications.Ithelpsdeterminetheoil'sperformanceandlongevitybymeasuringparameterssuchasviscositychange,depositformation,andacidnumberincreaseafterexposuretocontrolledthermalandoxidativestress.Thisstandardprovidesaconsistentandrepeatablemethodforcomparingthestabilityofdifferentlubricatingoils,ensuringtheymeetthenecessaryperformancerequirementsformanualtransmissionandfinaldriveaxleapplications.Itiswidelyusedbylubricantmanufacturers,automotiveengineers,andqualitycontrolprofessionalstovalidateoilformulationsandensurecompliancewithindustryspecifications.
