fuel additives AUDI A4 2019 Owners Manual

8W0012721BG
CheckingandFilling

CheckingandFilling
Fuel
ahemelt)
Thecorrectgasolinegradeisstatedontheinside
ofthefuelfillerdoor.
Thevehicleisequippedwithacatalyticconverter
andmustonlybedrivenwithunleadedgasoline.
AudirecommendsusingTOPTIERDetergentGas-
oline.ForadditionalinformationonTOPTIERDe-
tergentGasoline,visitwww.toptiergas.com.
Theindividualgasolinegradesaredifferentiated
byoctaneratings.Thisvalueisgivenwith(R
+M)/2equatingtoAKIorinRON.
Theheadingsbelowmatchthestickerinthefuel
fillerdoor.
UNLEADEDFUELONLYMIN.(R+M)/287
Regular/MIN.RON91Regular
Useregulargasolinewithminimum87AKI/
91RON>©.
Themaximumenginepowerisonlyreachedif
premiumgasoline91AKI/95RONisused.
UNLEADEDFUELONLYPREMIUMMIN.(R
+M)/291/SUPERMIN.RON95
Usingpremiumgasolinewithminimum91AKI/
95RONisrecommended.
Ifpremiumgasolineisnotavailable,youcanalso
useregulargasoline87AKI/91RON.However
thisdoesreduce theenginepowerslightly.
@)Note
—Fillingthetankjustonetimewithleaded
fuel orothermetallicadditiveswillcause
permanentdeteriorationtothecatalytic
converterfunction.
—Whengasolinewithanoctaneratingthatis
toolowisused,highspeedsorheavyengine
loadcanleadtoenginedamage.
@Tips
Thevehiclemaybefilledwithfuelthathasa
higheroctaneratingthanwhatisrequiredby
theengine.
Gasolinemixture
GasolinewithalcoholorMTBE(Methyl-Tert-
Butyl-Ether)
Youcan useunleadedgasolinemixedwithalco-
holorMTBE(generallylabeledasoxygenated
compounds)aslongasthefuelmeetsthefollow-
ingconditions:
Gasolinewithmethanolcontent(methylalco-
holormethanol)
—Anti-KnockIndexisatleast87AKI
—Nomorethan3%methanol
—Morethan2%solvent
Gasolinewithethanolcontent(ethylalcoholor
ethanol)
—Anti-KnockIndexisatleast87AKI
—Nomorethan15%ethanol
GasolinewithMTBEcontent
—Anti-KnockIndexisatleast87AKI
—Nomorethan15%MTBE
Gasolineadaptedtotheseason
Manygasolinefuelsareadaptedtotheseasons.
Whentheseasonchanges,werecommendrefu-
elingathigh-trafficgasstations.Itismorelikely
thatthegasolinewillbesuitablefortheseason
there.
()Note
—Gasolinewithmethanolcontentthatdoes
notmeetthespecifiedconditionsmaycause
corrosiondamageanddamagetoplasticor
rubbercomponentsinthefuelsystem.
—Donotusegasoline thatdoesnotmeetthe
specifications.
—Ifyouareunabletofindoutifaspecificgas-
olinemixturemeetsthespecifications,ask
the gasstationoperatorortheirfuelsuppli-
er.
305
>

CheckingandFilling

—Donotuseanygasolinemixturewhose
compositioncannotbeidentified.
—Audidoesnotassumeanyresponsibilityfor
damagetothefuelsystemorforperform-
ance
problemscausedbyusinggasoline
mixturesdifferentfromthosespecified.
Thistypeofdamagealsodoesnotfallunder
theNewVehicleLimitedWarrantyorunder
the emissionscontrolsystemwarranty.
—Ifyounoticeahigherfuelconsumptionor
poorhandlingorperformanceproblemsdue
tosuchgasolinemixtures,werecommend
fuelingwithunblendedgasoline.
Gasolineadditives
Animportantissueformanyautomobilemanu-
facturersiscombustionresidueintheengine
thatresultsfromtheuseofcertainfuels.
Althoughtypesofgasolinedifferdependingon
themanufacturer,therearesimilarities.Certain
substancesinthegasolinemaycausedepositsin
theengine.Additivesinthegasolinethatshould
keeptheengineandfuelsystemcleandonotall
functionequally.
AudirecommendsusingTOPTIERDetergentGas-
oline.ForadditionalinformationonTOPTIERDe-
tergentGasoline,visitwww.toptiergas.com.
Ifyouuseincorrectfuelsoveralongperiodof
time,themaximumengineperformancemaybe
impairedby combustionresidue.
@)Note
Damageormalfunctionscausedbytheuseof
incorrecttypesofgasolinearenotcoveredby
theNewVehicleLimitedWarranty.
306
Refueling
Fuelingprocedure


Fig.249Rightrearsideofthevehicle:openingthefuel
fillerdoor

Fig.250Fuelfillerdoorwithattachedfuelcap
Thefuelfillerdoorisunlockedorlockedbythe
central lockingsystem.
>Pressontheleftsideofthefuelfillerdoorto
openit>fig.249.
>Unscrewthetankcapcounterclockwise.
» Placethecapfromaboveontheopenfuelfiller
doorfig.250.
> Insertthefuelpumpnozzleallthewayintothe
fuelfillerneck.
>Beginfueling.Oncethefuelpumpnozzleturns
offthefirsttime,thefueltankisfull.Donot
continuefueling, or elsetheexpansionspacein
thetankwillbefilledwithfuel.
> Afterthefuelpumphasswitchedoff,waitfive
secondsbeforeremovingthenozzletoallow
therestofthefueltofinishdrippingintothe
fueltank.
>Turn thefuelcapclockwiseuntilitclicksinto
place.
>Closethefuelfillerdoorandthenpressonthe
leftsideuntilitlatches.