CUMMINS ISB Series - Cooling System Maintenance; Cooling Routine Maintenance; Heavy-Duty Coolant Definition; Lubricating Oil Management

Cooling
Routine Maintenance Recommendations
 •Checkcoolantlevelbeforeeverytrip.
 •Checkcoolantconcentrationevery15,000miles/6months
  orwhenevercoolantisaddedtothesystem.TheISBdoes
  notrequiresupplementalcoolantadditives(SCA).
 •Drain/ushcoolingsystemevery60,000miles/2years
  andrellwithheavy-dutycoolant(asdescribedbelow).
*Extendedcoolantdrain/ush/llintervalsmaybefollowed
   whencertainrequirementsaremet.Formoreinformation
   ontheserequirements,refertotheCumminsCoolant
   RequirementsandMaintenanceService,Bulletin3666132.
Denition of Heavy-Duty Coolant
 Acombinationof50/50waterandlowsilicateantifreeze
 (ethyleneglycolorpropyleneglycolareacceptable)that 
 meetsASTM4985(GM6038M)specsprovidesprotectionto
 -34°F.Inadditiontofreezeprotection,antifreezeisessential
 foroverheatandcorrosionprotection.Avoidover-concentration,
 asfreezeprotectiondecreasesabove68%.
 Foraccuracy,useofaRefractometer(example:Fleetguard
 No.C2806)totestantifreezeisrecommendedvs.oating
 balldevice.
ConsultOwnersManualforwaterqualityrequirements. 
 FleetguardWater-Checkteststrips(CC2609)canbeusedto
 checkwaterquality.Useofdistilledwaterisacceptable.
Cumminsrecommendstheuseofafullyformulated
 coolant,suchasFleetguardCompleat,thatmeetsASTM 
 D6210(EG)orASTMD6211(PG)specications.Consult
 chassismanufacturerforcompatibilitywithOEM
 coolingsystem.
Diesel Exhaust Fluid (DEF)
 DEFisreactantusedintheSCRsystemofanengine
 meetingtheEPA2010emissionregulations.Itisanon-toxic,
 non-polluting,non-ammableliquidthatrequiresnospecial
 handling.
 •EPA2010enginesarerequiredtouseDEFthatmeets
  ISO22241-1.
 •CumminsstronglyrecommendsuseofDEFthatis
  APIcertied.
 •Formaximumshelflife,storeDEFinsealedcontainerto
  avoidcontamination,attemperaturesbelow78°F(26°C),
  andavoidexposuretodirectsunlight.
 •DEFwillfreezearound11°F(-12°C)butDEFwillnot
  degradewhenfrozen.
Contact Number
Cummins 1-800-DIESELS
™
(1-800-343-7357)
 CustomerAssistanceCenter
Lubricating Oil
Routine Maintenance Recommendations
 Checkoilleveldaily.ReplaceoillteratEVERYoildraininterval.
OilDrainInterval  15,000miles/12months 
 FleetguardFilter  LF3970
Lubricating Oil Recommendations
 TheprimaryCumminsrecommendationistouseSAE15W40
 oilfornormaloperationatambienttemperaturesabove5°F
 (-15°C).ConsulttheOwnersManualoraCumminsdistributor
 forrecommendationconcerningcolderoperatingtemperatures.
*Anon-lowashoilmeetingCES20078(APICI-4/SL)canbe
 usedwithnochangetotheoilchangeinterval,butwill
 reducetheserviceintervaloftheCumminsParticulateFilter.
Synthetic Oil
 MaybeusedinISBengineprovidedtheymeetperformance
 andchemicalrequirements.Shouldnotbeusedinanew 
 engineuntiltherstoilchangeintervalmileageisreached.
 UseofsyntheticoildoesNOTjustifyextendedoildrainintervals.
Recommendedforuseinambienttemperaturesconsistently
 below-13°F(-25°C)forimprovedenginecrankingandowability.
Engine Break-in Oil
 Specialbreak-inoilshouldnotbeused.
Supplemental Oil Additives
 Supplementaloiladditivessuchasfriction-reducersand 
 graphitizersshouldnotbeusedunlesstheoilsuppliercan 
 provideevidenceofsatisfactoryperformance.Ifthereisany
 doubtaboutsuitabilityofanoil,consulttheoilmanufacturer
 foradenitiverecommendation,ordatatoestablishthatthe
 oilhasperformedsatisfactorilyinCumminsengines.
Oil Analysis
 Oilanalysis,asamethodtoextenddrainintervals,isNOT 
 recommended.Differentmethodsofmeasuringsoot,lackof
 correlationamongtestinglabs,anddifferingdrivingpatterns
 andidletimearethebasisoftherecommendation.
Exhaust Brakes
 ExhaustBrakescannotbeusedonISBengineswith
 CommonRailFuelsystems.TheVariableGeometry
 Turbochargertakestheplaceoftheexhaustbrakeand
 requiresnomaintenance.
Recreational Vehicle Maintenance and Operation
ISB Series Diesel
Quick Reference Guide
Engineswithouta
DieselParticulate
Filter(DPF)
EngineswithDPF
orSCR*
MustmeetCummins
Engineering
Specication(CES)
CES20078 CES20081
APISpecication APICI-4/SL APICJ-4/SL
Always refer to your Owners Manual, for complete
information.
Includesinformationon6.7-and5.9-literISBelectronicengines,fromEPA‘98tocurrent.