VOLVOEngines67
Themainpurposeofcoolantistotransportheatfromthehotpartsoftheenginetothe
radiatorandtoprotectthecoolingsystemfromcorrosion.
Inadditiontothis,thecoolantmust:
•Protectagainstpittingandcavitationerosiondamageofthewaterpumpandcylinder
liners.
•Protectagainstfreezingandboiling.
•Preventformationofscale,sludgedepositsandclogging.
•Beharmlesstopolymermaterialsandsealsinthecoolingsystem.
•Maintainitsliquidpropertiesincoldclimates.
Manyenginefailurescanbetracedbacktoaprobleminthecoolingsystem.Ifthecoolant
levelisallowedtogobelowthebottomofthetank,thereistheriskoftheengineshutting
down.Seetheoperatorsmanualformoreinformationonthewarningfunctions.
Note:AlwaysdisposeofcoolantaccordingtoFederalorlocalregulations.Takeallused
coolanttoarecyclingorwastecollectioncenter.
Coolantmixtureconsistingofanantifreezesolutioninwatershouldbeusedyear-roundto
providefreezeandboil-overprotectionaswellasprovidingastableenvironmentforseals
andhoses.
Note:DONOTuseantifreezeformulatedforautomobilegasolineengines.Thesehavea
veryhighsilicatecontentthatwillclogtheradiatorandleaveunwanteddepositsinthe
engine.
FreezeProtectionDownTo:PercentageofAntifreezeinMixture
–25°C(–13°F)
40%
–30°C(–22°F)
46%
–38°C(–36°F)
54%
–46°C(–51°F)
60%
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