AdvancedLubricationFreshOilFuelEconomyCapabilitiesofLSPICompliantLubricants

AdvancedLubricationFreshOilFuelEconomyCapabilitiesofLSPICompliantLubricants.pdf
InordertomeetevermorestringentCO2emissionstargets,OEMsaredevelopingnewtechnologyandenginedesigns.Turbocharged,gasolinedirectinjection(TGDI)enginesaremoreefficientandproducesignificantpoweratlowerenginespeedscomparedtonaturallyaspiratedengineswithequivalentdisplacement.Toensurelubricantsmaintaindurabilityandcleanlinessinthisnewhardware,performancetestsdesignedtominimizethefrequencyoflowspeedpre-ignition(LSPI),adestructivetypeofabnormalcombustionobservedinhighlyboostedengines,hasbeenintroducedintotheGMdexos1TM:2015specificationandwillbeacceptedintoILSACGF-6.OverbaseddetergentshavebeenidentifiedaskeylubricantcomponentsthatimpactLSPI.Asaconsequence,detergentsystemsusedinmanycommercialproductswillneedtobemodifiedtoreduceLSPIfornextgenerationoils.Thechoiceofdetergentchemistrydesignedtoensureprotectionagainstlubricant-inducedLSPImayadverselyaffectfueleconomyperformancemeasuredintheSequenceVIenginetest.Thispaperexplorestheeffectofincreasingoverbasedmagnesiumsulfonatedetergentinafinishedfluidonpredictedfreshoilfueleconomyimprovement.WefurtherdemonstratetheimpactofdetergentchangesonfueleconomyperformanceintheSequenceVIEenginetest.Finally,theinfluenceofformulationmodificationsonnormalizedLSPIfrequencyaswellaspredictedfueleconomyperformanceisdiscussed.
作者：KristinA.FletcherMarkT.DevlinWilliamY.LamJeremyP.Styer
作者单位：AftonChemicalCorporation
母体文献：中国汽车工程学会汽车燃料与润滑油分会第十七届年会论文集
会议名称：中国汽车工程学会汽车燃料与润滑油分会第十七届年会  
会议时间：2016年8月1日
会议地点：北京
主办单位：中国汽车工程学会
语种：chi
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在线出版日期：2019年6月26日
基金项目：
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