Navistar MaxxForce 7

SECTION5–MAINTENANCESCHEDULEANDSERVICEPROCEDURES
ServiceProcedures(cont.)
ENGINEOILANDFILTER(cont.)
ServiceInterval,whichevercomesrst:6monthsorcalculation
fromoneofthefollowingtables.
AveragefuelconsumptionrateinKilometersperliter(Kmpl)vs.
averagespeedinKilometersperhour(Kmph).
<24Kmph>24Kmph
>4.7Kmpl500hrs24,000km
3.0-4.7Kmpl500hrsSeeOilChange
Intervalgraph
(Figure30).
<3.0Kmpl500hrs11,265km
AveragefuelconsumptionMilesPerGallon(MPG)vs.average
speedMilesPerHour(MPH).
<=15MPH>15MPH
>11MPG500hrs15,000miles
7-11MPG500hrsSeeOilChange
Intervalgraph
(Figure30)
<7MPG500hrs7,000miles
CAUTION:Topreventenginedamage,donotextend
recommendedoilchangeintervals.
TheEngineControlModule(ECM)willnotifyyouwhenthe
appropriateintervalisreachedbasedonthemileage,hours,
andfuelconsumptioncalculation.Forfurtherinformationsee
ResettingChangeEngineOilServiceIntervalMessage(page
76).
Alternatively,usetheDailyCareandReporttable(page101)to
recordmileage,enginehours,andfuelconsumption.Calculate
theaveragemilesperhourandtheaveragemilespergallon
sincethelastoilchangeandusewiththespeciedintervalsto
determinetheappropriatechangeinterval.
Engineoilsamplingcanbeutilizedforthefollowing:
EngineOilSampling-Optional
1.Determineifspeciedengineoilchangeintervalsshould
beshortened,baseduponspecicengineapplication.
2.Catchcontaminateswhich,ifleftunattended,mayresult
inenginefailure.
Changeengineoilandoillterprocedure:
1.Parkvehicleonlevelground.Setparkingbrakeandshift
transmissiontoparkorneutral.
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