Peterbilt 348 2017 - Page 291

COOLINGSYSTEM
DesiredELC/Waterratio:
10%15%20%25%30%35%40%45%50%55%60%65%70%75%80%85%90%
Freezepoint°F(°C)
+25
(-4)
+20
(-7)
+15
(-9)
+10
(-12)
+5
(-15)
-5
(-21)
-12
(-24)
-23
(-31)
-34
(-37)
-50
(-46)
-65
(-54)
-75
(-59)
-84
(-64)
-70
(-57)
-55
(-48)
-43
(-42)
-30
(-34)
Itemsinboldaretherecommendedlevelsofconcentration.
ELCCondition(Contaminationand
InhibitorConcentration)
Performavisualinspectionofthe
ELC.Itshouldhavenocloudiness
oroatingdebris.Determinethe
chemicalinhibitorconcentrationlevel
byusinganELC-specictestkitor
teststrips.Inhibitorconcentrationlevel
determinescorrosionprotection.Ifyou
areconcernedaboutpossiblecoolant
quality,contamination,ormechanical
problems,submitacoolantsamplefor
analysis.Impropermaintenancemay
causecoolantdegradationandcould
resultindamagetothecoolingsystem
andenginecomponents.Consult
yourdealerortheELCmanufacturer’s
representativeforrecommendedELC
testkits,teststrips,andlaboratory
sampleprocedures.
ELCExtender
AddELCextenderifnecessaryatthe
maintenanceintervalunder"Cooling".
CoolantFilter
Ifyourvehiclecamewitha
non-chemicallter("blanklter"),
replaceitonlywithablanklteratthe
intervalspeciedinthePreventive
MaintenanceScheduleonpage5-12.
NeveruseltersthatcontainSCAsin
anELC-lledsystem.
(03/17)Y53-6060-1C15-81
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