2003 PORSCHE 911 CARRERA octane

FuelQuality
Yourengineisdesignedtoprovideoptimumperformanceandfueleconomyusing
unleadedpremiumfuelwithanoctaneratingof98RON(93CLCorAKI).
Porschethereforerecommendstheuseofthesefuelsinyourvehicle.
Porschealsorecognizesthatthesefuelsmaynotalwaysbeavailable.Beassuredthatyourvehiclewilloperate
properlyonunleadedpremiumfuelswithoctanenumbersofatleast95RON(90CLCorAKI).
sincetheengine's"ElectronicOktaneTMknockcontrol"willadapttheignitiontiming,ifnecessary.
Fuels
containing
alcohol
and
ether
SomeareasoftheU.S.requireoxygenatedfuelsduringcertainportionsoftheyear.
Oxygenatedfuelsarefuelswhichcontainalcohols(suchasmethanolorethanol)orether(suchasMTBE).
Undernormalconditions,theamountofthesecompoundsinthefuelwillnotaffectdriveability.
YoumayuseoxygenatedfuelsinyourPorsche,providedtheoctanerequirementsforyourvehiclearemet.
Werecommend,however,tochangetoadifferentfuelorstationifanyofthefollowingproblemsoccurwithyourvehicle:
-Deteriorationofdriveabilityandperformance.
-Substantiallyreducedfueleconomy.
-Vaporlockandnon-startproblems,especiallyathighaltitudeorathightemperature.
-Enginemalfunctionorstalling.
Fuels
containing
MMT
SomeNorthAmericanfuelscontainanoctaneenhancingadditivecalledmethylcyclopentadienylmanganesetricarbonyl(MMT).
Ifsuchfuelsareused,youremissioncontrolsystemperformancemaybenegativelyaffected.
Thecheckenginewarninglightsonyourinstrumentpanelmayturnon.
Ifthisoccurs,PorscherecommendsyoustopusingfuelscontainingMMT.
4

FuelEconomy
Fueleconomywillvarydependingon
where,whenandhowyoudrive,optional
equipmentinstalled,andthegeneralcondi-
tionofyourcar.
Acartunedtospecificationsandcorrectly
maintained,willhelpyoutoachieveoptimal
fueleconomy.
I>Haveyourvehicletunedtospecifications.
Aircleanershouldbedirtfreetoallowproper
engine"breathing".
Batteryshouldbefullycharged.
Wheelsshouldbeproperlyaligned.
Tiresshouldbeinflatedatcorrectpressure.
I>Alwaysmonitoryourfuelconsumption.
I>Drivesmoothly,avoidabruptchangesin
speedasmuchaspossible.
I>Avoidjackrabbitstartsandsuddenstops.
I>Donotdrivelongerthannecessaryinthe
lowergears.Shiftingintoahighergearearly
withoutluggingtheenginewillhelpsavefuel.
I>Prolonged"warmup"idlingwastesgas.Start
thevehiclejustbeforeyouarereadytodrive.
Accelerateslowlyandsmoothly.
I>Switchofftheengineifstationaryforlonger
periods.
I>Anyadditionalweightcarriedinthevehiclere-
ducesfueleconomy.Alwayskeepcargotoa
minimumandremoveallunnecessaryitems.
I>Organizeyourtripstotakeinseveralerrands
inonetrip.
I>Allelectricalaccessoriescontributetoin-
creasedfuelconsumption.
I>Onlyswitchontheairconditioningwhen
necessary.
I>DonotdrivewiththeRoofTransportSystem
mountedunlessyouneedit.
TheEPAestimatedm.p.g.istobeusedfor
comparisonpurposes,actualmileagemay
bedifferentfromtheestimatedm.p.g.,de-
pendingonyourdrivingspeed,weather
conditionsandtriplength.Youractual
highwaymileagewillprobablybelessthan
theestimatedm.p.g.
I>Pleaseobservealllocalandnationalspeed
limits.
OperatingYourPorscheinother
Countries
GovernmentregulationsintheUnitedStatesand
Canadarequirethatautomobilesmeetspecific
emissionregulationsandsafetystandards.
Therefore,carsbuiltfortheU.S.andCanada
differfromvehiclessoldinothercountries.
IfyouplantotakeyourPorscheoutsidethecon-
tinentallimitsoftheUnitedStatesorCanada,
thereisthepossibilitythat
-unleadedfuelmaynotbeavailable;
-unleadedfuelmayhaveaconsiderablylower
octanerating.Excessiveengineknockand
seriousdamagetobothengineandcatalytic
converterscouldresult;
-servicemaybeinadequateduetolackof
properservicefacilities,toolsordiagnostic
equipment;
-replacementpartsmaynotbeavailableor
verydifficulttoget.
Porsche
cannot
beresponsibleforthe
mechanicaldamagethatcouldresultbe-
causeofinadequatefuel,serviceorparts
availability.
IfyoupurchasedyourPorscheabroadandwant
tobringitbackhome,besuretofindoutabout
shippingandforwardingrequirements,aswell
ascurrentimportandcustomsregulations.
Maintenance,CarCare
175

Refuelling
Fueltankcapacityislistedunder"Capacities".
Porschedoesnotrecommendtheuseoffuel
additives.
1.Important:Stoptheengineandswitchoff
theignition.
2.Slowlyunscrewthetankcap.
Hangthetankcapontheplasticstrapofthe
fillerflap.
3.Insertfuel-hosenozzlefullyintothefillerneck
withthehandleofthefuel-hosenozzlefacing
down.
4.Donotaddfurtherfueloncethecorrectly
operatedautomaticfuel-hosenozzlehas
switchedoff.
Fuelcouldsprayorcouldrunoverinwarm
temperatures.
5.Replacethetankcapimmediatelyafter
refuellingandturnituntilyouhearitandfeel
itengage.

Ifyoulosethetankcap,youmustreplace
itonlywithanoriginalparttoreducethe
possibilityofafireintheeventofacolli-
sion.

Note
Theoillevelisautomaticallymeasuredduring
refuelling.
Themeasuredoillevelisdisplayedforapproxi-
matelyoneminutewhentheignitionisswitched
onortheengineisstarted.
However,thismeasurementisperformedonlyif
thefollowingpreconditionsaremet:
Engineisatoperatingtemperature,ignitionis
off,refuellingiscompletedwithin15minutes.
FuelRecommendations
YourPorscheisequippedwithcatalyticconver-
tersandmustuseUNLEADEDFUELONLY.
Yourengineisdesignedtoprovideoptimumper-
formanceandfueleconomyusingunleadedpre-
miumfuelwithanoctaneratingof98RON
(93CLCorAKI).Porschethereforerecom-
mendstheuseofthesefuelsinyourvehicle.
Porschealsorecognizesthatthesefuelsmay
notalwaysbeavailable.Beassuredthatyour
vehiclewilloperateproperlyonunleadedpre-
miumfuelswithoctanenumbersofatleast
95RON(90CLCorAKI).sincetheengine's
"ElectronicOktaneTMknockcontrol"willadapt
theignitiontiming,ifnecessary.

Theuseof
UNLEADEDFUELONLY
iscriti-
callyimportanttothelifeofthecatalytic
converters.Depositsfromleadedfuelswill
ruintheconvertersandmakeitineffective
asanemissioncontroldevice.

Carswithcatalyticconvertershaveasmaller
fueltankopening,andgasstationpumpshave
smallernozzles.Thiswillpreventaccidental
pumpingofleadedfuelintocarswithcatalytic
converters.
I>I>I>
Maintenance,CarCare
177

Unleadedfuelsmaynotbeavailableoutsidethe
continentalU.S.andCanada.Therefore,werec-
ommendyoudonottakeyourcartoareasor
countrieswhereunleadedfuelmaynotbeavail-
able.

Octaneratings

Octaneratingindicatesafuel'sabilitytoresist
detonation.Therefore,buyingthecorrectoctane
gasisimportanttopreventengine"damage".
TheRONoctaneratingisbasedontheresearch
method.TheCLC(U.S.CostofLivingCouncil
octanerating)orAKI(antiknockindex)octane
ratingusuallydisplayedonU.S.fuelpumpsis
calculatedasresearchoctanenumberplus
motoroctanenumber,dividedby2,thatiswrit-
tenas:
RON+MON
2
orR+M
2
TheCLCorAKIoctaneratingisusuallylower
thantheRONrating:
Forexample:95RONequals90CLCorAKI
178Maintenance,CarCare
Fuels
containing
alcohol
andether

SomeareasoftheU.S.requireoxygenated
fuelsduringcertainportionsoftheyear.Oxyge-
natedfuelsarefuelswhichcontainalcohols
(suchasmethanolorethanol)orether(suchas
MTBE).
Undernormalconditions,theamountofthese
compoundsinthefuelwillnotaffectdriveability.
YoumayuseoxygenatedfuelsinyourPorsche,
providedtheoctanerequirementsforyourve-
hiclearemet.Werecommend,however,to
changetoadifferentfuelorstationifanyofthe
followingproblemsoccurwithyourvehicle:
-Deteriorationofdriveabilityandperformance.
-Substantiallyreducedfueleconomy.
-Vaporlockandnon-startproblems,especially
athighaltitudeorathightemperature.
-Enginemalfunctionorstalling.
Fuels
containing
MMT
SomeNorthAmericanfuelscontainanoctane
enhancingadditivecalledmethylcyclopentadienyl
manganesetricarbonyl(MMT).
Ifsuchfuelsareused,youremissioncontrol
systemperformancemaybenegativelyaffected.
Thecheckenginewarninglightonyourinstru-
mentpanelmayturnon.
Ifthisoccurs,Porscherecommendsyoustop
usingfuelscontainingMMT.
PortableFuelContainers

A
Danger!
Portablefuelcontainers,fullorpartially
empty,mayleakcausinganexplosion,or
resultinfireincaseofanaccident.

t>Nevercarryadditionalfuelinportablecon-
tainersinyourvehicle.

Capacities
UseonlyfluidsandfuelsauthorizedbyPorsche.YourauthorizedPorschedealerwillgladlyadviseyou.
YourPorschehasbeendesignedsothatitisnotnecessarytomixanyadditiveswithoilsorfuels.
EngineOilchangequantitywithoutoilfilterapprox.8.5quarts/8.0liters
Oilchangequantitywithoilfilterapprox.8.7quarts/8.25liters
Referenceindicationisthelevelontheoildipstick.Alsorefertothesection"EngineOils".

Coolant
approx.5.95U.S.gallons/22.5liters
Manualtransmission
anddifferentialapprox.2.85quarts/2.7literstransmissionoil
Tiptronic5approx.9.51quarts/9.0litersATF
DifferentialwithTiptronic5approx.1.32quarts/1.25literstransmissionoil
Fueltank,refillvolume911Carrera:approx.16.9U.S.gallons/64liters,911Carrera4,Carrera45:approx.16.6U.S.gallons/
63liters,includingapprox.2.6U.S.galions/l0litersreserve
FuelqualityYourengineisdesignedtoprovideoptimumperformanceandfueleconomyusing
unleadedpremiumfuelwithanoctaneratingof98RON(93CLCorAKI).
Porschethereforerecommendstheuseofthesefuelsinyourvehicle.
Porschealsorecognizesthatthesefuelsmaynotalwaysbeavailable.Beassuredthatyourvehicle
willoperateproperlyonunleadedpremiumfuelswithoctanenumbersofatleast95RON(90CLCorAKI).
sincetheengine's"ElectronicOktaneTMknockcontrol"willadapttheignitiontiming,ifnecessary.
Powersteeringapprox.1.3quarts/1.27literhydraulicfluidPentosinCHF11
S@
BrakefluidUseonlyOriginalPorschebrakefluid.
Windshieldwasherapprox.3.17quarts/3literswithoutheadlightwasher,approx.6.02quarts/5.7literswithheadlightwasher
250TechnicalData

H
Hardtop154-159
Headlights10O,101,224-229
-Adjusting236,237
-Cleaningsystem102,181,250
Heatedrearwindow30
Heating106-109
Highbeam
-Indicatorlight75
-Lever100
Hoods118,119
Horn15,21,22
Identificationnumber120,242
Ignitionlock64,65,129
Immobilizer17
Indicatorlights68-II
Infraredpassenger
compartmentmonitoring24,25
Instrumentpanel62,63
Instruments68-97
-Lights73,100
Interiormirror28,29
Interiorlight112-114,234
Intermittentoperationswitch102,103
J
Jack120,121,204-211
Jumpercables220,201
K
Kerblight233
Keylock.129
Keys16-19
L
Leather191
Licenseplatelight100,233
Lids118,119
-Emergencyunlocking214
Lifting/slidingroof136-139
Light
-Flasher75,100,101
-Lowbeam100,101
-Switch10O,101
Loadswitch-off212
Locking21-23
-Conditions22
Luggagecompartment120,121,233
Luggagecarrier166,252-254
M
Maintenance168-193
Make-upmirror31
Maximumpermittedenginespeeds14
Mirrors28,29,49
-Anti-glare29
N
Noteson
-Carcare185-193
-Maintenance168
Numberplatelight100,233
0
Octanerating177,178
Odometer73
Oil170-173,250
-Consumption14,170
-Dipstick171
-Levelchecks86,87,III
-Levelgauge86,87
-Pressuregauge80
-Pressurewarninglight80
On-boardcomputer82-97
-Basicsetting83,89
-Languageselection90
On-boardliterature2
Orientationlight112,113
Outside-temperaturedisplay83,89
Index
261