Otherwise, youcoulddamagetheengine.Ifheavy
knocking isheardwhenusinggasoline ratedat
SeeMalfunction Indicator Lamp on page 4‑55.Ifthis
occurs,returntoyourauthorized dealerfordiagnosis.
Ifitisdetermined thatthecondition iscausedbythe
typeoffuelused,repairsmightnotbecoveredbythe
vehiclewarranty.
87
octaneorhigher,theengineneedsservice.
GasolineSpecifications
Ataminimum,gasoline shouldmeet
Additives
ASTMspecification D4814intheUnitedStatesor
CAN/CGSB‐3.5or3.511inCanada.Somegasolines
containanoctane-enhancing additive called
methylcyclopentadienyl manganese tricarbonyl (MMT).
Werecommend againsttheuseofgasolines containing
MMT.SeeAdditives on page 6‑6 foradditional
information.
Toprovidecleanerair,allgasolines intheUnitedStates
arenowrequired tocontainadditives thathelpprevent
engineandfuelsystemdeposits fromforming, allowing
theemissioncontrolsystemtoworkproperly.Inmost
cases,nothingshouldhavetobeaddedtothefuel.
However,somegasolines containonlytheminimum
amountofadditive required tomeetU.S.Environmental
Protection Agencyregulations. Tohelpkeepfuel
injectors andintakevalvesclean,orifthevehicle
experiences problems duetodirtyinjectors orvalves,
lookforgasoline thatisadvertised asTOPTIER
Detergent Gasoline.
CaliforniaFuel
Ifthevehicleiscertified tomeetCalifornia Emissions
Standards, itisdesigned tooperateonfuelsthatmeet
California specifications. Seetheunderhood emission
controllabel.Ifthisfuelisnotavailable instates
adopting California emissions standards, thevehicle
willoperatesatisfactorily onfuelsmeetingfederal
specifications, butemissioncontrolsystemperformance
mightbeaffected.Themalfunction indicator lampcould
turnonandthevehiclemightfailasmog‐checktest.
Forcustomers whodonotuseTOPTIERDetergent
Gasolineregularly,onebottleofGMFuelSystem
TreatmentPLUS,addedtothefueltankatevery
engineoilchange,canhelpcleandepositsfromfuel
injectors andintakevalves.GMFuelSystemTreatment
PLUSistheonlygasoline additive recommended by
GeneralMotors.
6-6
| Categories | Cadillac DTS Manuals, Cadillac Manuals |
|---|---|
| Tags | Cadillac DTS 4.6 |
| Model Year | 2010 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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