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.
p
Paint
-Care185-193
-Data242
Parking
-Aids48,49
-Assistant48,49
-Brake52,53
-Light100,228,231
Particlefilter183
Passengerairbag,switchingoff41-45
Passengercompartment
monitoring,infrared24,25
Platformlift205
Plasticparts190
Porschecommunication
management(PCM)123
Porschestabilitymanagement(PSM)58,59
Powermeasurements60
Powersteeringfluidlevel182,250
Powerwindows20,26,27,140
Practicaltips196-239
262Index
R
Radiatorfan67,170
Radioreception124,125
Rainsensor103
Rangeonremainingfuel89
Rearfoglight100,231
Rearlid118,119
Rearlid(Targa)161-165
Rearseatbackrest37
Rearspoiler50,51
Rearviewmirrors28,29,49
Rearwindowdefogger30
RearwiperIII
Relays212
Remotecontrol18,19
Replacingbulbs222-235
Replacingwiperblades184
Replacementkey17
Retractablespoiler,rear50,51
Rollerblind(Targa)162
Rolloverprotectionsystem46,47
Roof
-Liftingjsliding136-139
-Transportsystem166,252-254
Runningin14
s
Safetybelts38-40,192
Safetycompliancesticker243
Seals..190
Seat32-37
-Adjustment32-37
-Heating36
-Memory34,35
Selectorleverpositionindicator130
Shiftlock..129
Sidemarkerlight100,230,231
Sidememberpanels51
Slidingroof136-139
Snowchains203,248
Spacerrings207
Sparekey17,18
Sparewheel120,121,206,207,211,248
Speed
-Control72,104,105
-Gong84
Speedometer74
Spoiler,retractable50,51
Sportsexhaustsystem123
Startingandstoppingtheengine64-67
Steeringwheel
-Adjustment37
-Lock64,65
-Toggleswitches129-134
Storageoptions116,117
Storagetray117
StoringyourPorsche..193
Sunvisors31
