Designation:D5345–98StandardSpecificationforPredilutedAqueousEthyleneGlycolBaseLow-SilicateEngineCoolant(50VolumePercentMinimum)forHeavy-DutyEnginesRequiringanInitialChargeofSupplementalCoolantAdditive(SCA)1ThisstandardisissuedunderthefixeddesignationD5345;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoverstherequirementsforapredi-lutedaqueousethyleneglycolbaselow-silicateenginecoolant(50volumepercentminimum)forcoolingsystemsofheavy-dutyengines.Whenusedwithoutfurtherdilution,thisproductwillfunctioneffectivelyduringbothsummerandwintertoprovideprotectionfromcorrosion,freezingatleastto−36.7°C(−34.0°F),andboilingatleastto108°C(226°F).1.2Predilutedcoolantmeetingthisspecificationrequiresbothaninitialchargeofasupplementalcoolantadditive(SCA)andregularmaintenancedosesofanSCAtocontinuetheprotectionincertainoperatingheavy-dutyenginecoolingsystems,particularlythoseofthewetcylinderliner-in-blockdesign.TheSCAadditionsaredefinedbyandaretheprimaryresponsibilityoftheengineorvehiclemanufacturer.Iftheyprovidenoinstructions,followtheSCAsupplier’srecom-mendedinstructions.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:D512TestMethodsforChlorideIoninWater2D516TestMethodforSulfateIoninWater2D1119TestMethodforAshContentofEngineCoolantsandAntirusts3D1120TestMethodforBoilingPointofEngineCoolants3D1121TestMethodforReserveAlkalinityofEngineCoolantsandAntirusts3D1122TestMethodforDensityorRelativeDensityofEngineCoolants...
