Navistar MaxxForce 10

SECTION2–REQUIREMENTSFORFUEL,ENGINEOIL,ANDCOOLANT
Coolant
COOLANTMIXTURES
Enginecoolantmixturesincludewater,glycol(ethyleneor
propylene),andinhibitors.Conventionalandfullyformulated
coolantsrequireregulartestingofinhibitorlevelstomaintain
safelevelsofprotection.Testingofconventionalcoolant
determineslevelsofnitrite,nitrite/molybdate,andfreeze
pointprotection.Ifnecessary,SupplementalCoolantAdditives
(SCAs)areaddedtoreplenishinhibitors.
Extendedlifecoolantmixtures(waterandethyleneglycol)donot
requireregulartestingofinhibitorlevelsoradditionofSCAs.
EXTENDEDLIFECOOLANT(ELC)–RED
HeavyDutyREDExtendedLifeCoolant(ELC)50/50Premix
meetingCEMSB-1TypeIIIisthestandardfactoryllforthe
coolingsystem.ThecoolantshouldminimallymeetASTM
D6210,StandardSpecicationforfully-FormulatedGlycol
BaseEngineCoolantforHeavyDutyEngines.
ELC50/50Extenderisaddedatthedesignatedserviceinterval.
ForfurtherinformationseeExtendedLifeCoolant(ELC)
Extender(page82).
FreezePointProtectionLevelsConcentrate(ethylene
glycol)andWaterMixtures
ConcentrateandWater
Mixtures
FreezePointProtection
40%Concentrateand60%
water
-24.4°C(-12°F)
50%Concentrateand50%
water
-36.7°C(-34°F)
60%Concentrateand40%
water
-52.0°C(-62°F)
67%Concentrateand33%
water
-70.6°C(-95°F)
Forvehiclesoperatinginextremelycoldclimates,acoolant
mixtureof60%Concentrateand40%wateror67%Concentrate
and33%waterprovidefreezeprotectionasshowninprevious
table.Mixtureshavingmorethan67%Concentratearenot
recommended.
Forcoolingsystemservice,see
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