Navistar MaxxForce 7 - Oil Viscosity

SECTION2–REQUIREMENTSFORFUEL,ENGINEOIL,ANDCOOLANT
EngineOil(cont.)
APICJ-4FORHIGHPERFORMANCEDIESELENGINES
(cont.)
NOTE:Mineralandsyntheticoilsareacceptableforuse
providedtheymeettheAPIcategoryrecommendationsand
ambienttemperatureguidelines.Alwaysfollowrecommended
oilchangeguidelinesnomatterwhatoilisused.
APICJ-4oilsprovideprotectionagainstthefollowing:
•Catalystpoisoningandparticulateblockage
•Enginewear
•Pistondeposits
•Sootrelatedviscosityincrease,deposits,andwear
•Viscositylossduetoshear
•Oxidativethickening
•Oilfoamingandaeration
APICJ-4oil,incombinationwithUltraLowSulfurDiesel(ULSD)
fuel(0.0015%[15ppm]maximumsulfurcontent),isrequiredto
maintainperformanceanddurabilityofaftertreatmentsystems
meeting2007andbeyonddieselemissionregulations.
APICI-4oilsareallowedindieselenginesthatmeetthese
regulations.UseoftheCI-4engineoilshortensDiesel
ParticulateFilter(DPF)cleaningserviceintervals.
OILVISCOSITY
Figure11SAEViscosityGradesAndTemperatureRanges
TheSocietyofAutomotiveEngineers(SAE)denesoilviscosity
(thickness)bygrade.Coldertemperaturesrequirelowergrade
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