Designation:D8111−21a´1StandardTestMethodforEvaluationofAutomotiveEngineOilsintheSequenceIIIH,Spark-IgnitionEngine1ThisstandardisissuedunderthefixeddesignationD8111;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—EditoriallyupdatedTMCgovernanceinformationinJune2022.INTRODUCTIONPortionsofthistestmethodarewrittenforusebylaboratoriesthatmakeuseofASTMTestMonitoringCenter(TMC)2services(seeAnnexA1).TheTMCprovidesreferenceoils,andengineeringandstatisticalservicestolaboratoriesthatdesiretoproducetestresultsthatarestatisticallysimilartothoseproducedbylaboratoriespreviouslycalibratedbytheTMC.Ingeneral,thetestpurchaserdecidesifacalibratedteststandistobeused.OrganizationssuchastheAmericanChemistryCouncilrequirethatalaboratoryutilizetheTMCservicesaspartoftheirtestregistrationprocess.Inaddition,theAmericanPetroleumInstituteandtheGearLubricantReviewCommitteeoftheLubricantReviewInstitute(SAEInternational)requirethatalaboratoryusetheTMCservicesinseekingqualificationofoilsagainsttheirspecifications.TheadvantageofusingtheTMCservicestocalibrateteststandsisthatthetestlaboratory(andhencethetestpurchaser)hasanassurancethattheteststandwasoperatingattheproperleveloftestseverity.Itshouldalsobeborneinmindthatresultsobtainedinanon-calibratedteststandmaynotbethesameasthoseobtainedinateststandparticipatingintheASTMTMCservicesprocess.ASTMInternationalpolicyistoencouragethedevelopmentoftestproceduresbasedongenericequipment.Itisrecognizedthatthereareoccasionswherecritical/sole-sourceequipmenthasbeenapprovedbythetechnicalcommittee(surveillancepanel/taskforce)andisrequiredbythetestprocedure.Thetechnicalcommitteethatoverseesthetestprocedureisencouragedtoclearlyidentifyifthepartisconsideredcriticalinthetestprocedure.Ifapartisdeemedtobecritical,ASTMencouragesalternativesupplierstobegi...
