2004 PORSCHE 911 GT3 capacity

1.
Important:
Stoptheengine andswitch offthe
FuelRecommendations

ignition.

Refuelling
Fuel tank capacity islisted under "Capacities".
Porsche doesnotrecommend theuse offuel ad-
ditives.

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Please observe thechapter "CAPACITIES" on
Page 185.
Maintenance, CarCare 2.
Slowly unscrew thetank cap.
Hang thetank caponthe plastic strapofthe
filler flap.
3. Insert fuel-hose nozzlefullyintothefiller neck
with thehandle ofthe fuel-hose nozzlefacing
down.
4. Donot add further fuelonce thecorrectly op-
erated automatic fuel-hosenozzlehas
switched off.
Fuel could sprayorcould runover inwarm
temperatures.
5. Replace thetank capimmediately after
refuelling andturn ituntil youhear itand feel it
engage.

If you lose thetank cap,youmust replace it
only with anoriginal parttoreduce the
possibility ofafire inthe event ofacollision.
Your
Porsche isequipped withcatalytic convert-
ers and must use
UNLEADED FUELONLY.

Your engine isdesigned toprovide optimum per-
formance andfuel economy usingunleaded premi-
um fuel with anoctane ratingof
98 RON
(93 CLC orAKI).
Porsche therefore recom-
mends theuse ofthese fuelsinyour vehicle.
Porsche alsorecognizes thatthese fuelsmaynot
always beavailable. Beassured thatyour vehicle
will operate properly onunleaded premiumfuels
with octane numbers ofatleast
95RON
(90 CLC orAKI),
sincetheengine's "Electronic
Oktane
™
knock control" willadapt theignition tim-
ing, ifnecessary.

The useofUNLEADED FUELONLY is
critically important tothe lifeofthe catalytic
converters. Depositsfromleaded fuelswill
ruin theconverters andmake itineffective as
an emission controldevice.

Cars withcatalytic converters haveasmaller fuel
tank opening, andgas station pumps havesmaller
nozzles. Thiswillprevent accidental pumpingof
leaded fuelintocars withcatalytic converters.

FuelEvaporation Control

Fuel tank venting
The evaporation chamberandthecarbon canister
prevent fuelfrom escaping tothe atmosphere at
extreme highoutside temperatures, whendriving
abruptly aroundcurvesandwhen thecar isparked
at an incline orinany other nonlevel position.
Vapor control systemandstorage
When thefuel tank isfilled, vapors arecollected in
the evaporation chamberbyavent lineleading the
vapors tothe carbon canister wheretheyare
stored aslong asthe engine doesnotrun.
Purge system
When theengine isrunning, thefuel vapors from
the canister willbemixed withfresh airfrom the
ambient airofthe canister. Thismixture willbe
directed tothe intake airhousing bythe tank vent
line, mixed withtheintake airand burned during
normal combustion.
Maintenance, CarCare
Washer
Fluid

The reservoir, withablue screw cap,isinthe lug-
gage compartment, tothe rear left.
Capacity
- Without headlight cleaningsystem:
approximately 3.2quarts (3liters).
- With headlight cleaningsystem:
approximately 6.1quarts (5.7liters). Clean
water isgenerally notenough toclean the
windshield andheadlights.
It is advantageous toadd awinter cleaner giving
antifreeze protection orasuitable summer clean-
er, depending onthe season. Followtheinstruc-
tions forthe mixing ratio.

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Donot use engine coolant anti-freeze orany
other solution thatcandamage thecar's paint,
in the washer reservoir.

\>
Please noteallthe information onthe container
of the cleaning agent.

e
Warning light
The warning lightsinthe instrument panelandon-
board computer lightwhen approximately 0.5liter
(0.52 quarts) isleft inthe reservoir.

Beforemounting snowtires, consult with
your Porsche dealer.Hehas thetechnical
information necessarytoadvise youon
wheel andtirecompatibility.

Snow tiresshould havethesame loadcapacity as
original equipment tiresandshould bemounted
on allfour wheels.
Snow tireswithstuds should berun atmoderate
speeds whennewinorder togive thestuds time
to settle.

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Warning!
Tires withbadly worntreads andstuds are
very dangerous andcould cause accidents
resulting insevere personal injuries.

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Make surethey arereplaced immediately.
Do not drive avehicle equipped withsnow tiresat
prolonged highspeed.
Snow tiresdonot have thesame degree oftrac-
tion ondry, wet orsnowfree roadsasanormal
tire. Furthermore, snowtireswear rapidly underthese
conditions.
Snow tiresdonot fulfill their purpose ifthe tread
depth isless than 5/32 in.(4mm).

Comply withallstate andlocal laws
governing snowtireand tread depth
requirements.
Snow
chains

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Caution!
Risk ofdamage tobody, axleorbrake com-
ponents.

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Fitsnow chains onlytothe rear wheels, and
only withthetire/rim combination listedinthe
Technical Data.
To ensure adequate clearance betweenchain
and body, Porsche recommends onlytheuse
of fine-link chainssuchasthose approved by
Porsche.

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Follow instructions issuedbythe supplier of
the chains.
Different statesandcountries havevarying statu-
tory requirements regardingmaximum speed.
Check withlocal authorities forpossible restric-
tions.

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Remove chainsassoon asthe roads arefree
of ice and snow.
Tire
designations

Due tonew speed andload ratings forradial tires,
new designations havecome intoforce forsnow
tires foryour Porsche.
The designation tobe used forZRtires ise.g.,
255/40 ZR17(Z
=
code letterforradial tiresfor
speeds above150mph (240 kmjhl.
Practical Tips,Emergency Service

j!\
Warning!
Hydrogen gasgenerated bythe battery
could cause anexplosion, resultinginsevere
personal injuries.

c> Charge battery inawell ventilated area.
c> Never charge afrozen battery. Itmay explode
because ofgas trapped inthe ice. Allow afro-
zen battery tothaw outfirst.
c> Ifyou getelectrolyte, whichisan acid, inyour
eyes oron your skin, immediately rinsewith
cold water forseveral minutes andcalladoc-
tor.
Slow
battery charging

1. Pay attention toallwarnings andfollow instruc-
tions thatcome withyour battery charger.
2. When charging, ensureadequate ventilation.
3. Remove battery.
Please observe thechapter "REMOVING THE
BATTERY" onPage 158.
4. Allvent caps should beopen.
The fluid level should meettheindicator mark
in each cell.
5. Ensure thatcharger isswitched off-danger of
short circuit!
6. Connect chargercables.

Charger cablesmustbeconnected
POSITIVE
(+1
toPOSITIVE
(+)
and
NEGATIVE (-)toNEGATIVE
(-I.

7. Switch oncharger.
Normally, abattery shouldbecharged atno
more than10percent ofits rated capacity.
Rated capacity ofthe battery inyour vehicle is
listed onthe battery housing.
8. After charging, turnoffcharger anddiscon-
nect charger cables.
9. Tighten thevent caps andreinstall battery
Please observe thechapter "INSTALLING THE
BATTERY" onPage 158. Winter
operation
During thewinter months, batterycapacity tends
to decrease astemperatures drop.
Additionally, morepower isconsumed whilestart-
ing, andtheheadlights, heater,rearwindow de-
fogger, etc.,areused more frequently.
c> let your Porsche dealertestthebattery's
capacity beforewintersetsin.
Replacing battery
The service lifeofthe battery issubject tonormal
wear; itdepends graetlyoncare, climatic condi-
tions, anddriving conditions (distances, loads).
c> Only useanoriginal Porsche battery,withthe
correct partnumber, asareplacement.
c> Please observe thedisposal instructions for
batteries.

c>c>c>

Practical Tips,Emergency Service

Emergency StartingwithJumper
Cables

If the battery isdischarged, e.g.inwinter orafter
the car has been parked foralong time, thebat-
tery ofanother carcan beused forstarting with
the help ofjumper cables.
Make surethevoltage ofboth batteries isthe
same.
The capacity (Ampere hours,Ah)ofthe booster
battery mustnotbesubstantially lessthan thatof
the discharged battery.
The discharged batterymustbecorrectly con-
nected tothe vehicle's electrical system.

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Please observe thechapter "BATTERY" on
Page 155.

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Please observe thechapter "EMERGENCY UN-
LOCKING OFTHE LUGGAGE COMPARTMENT
LID AND ENGINE COMPARTMENT LID"on
Page 154.

Note

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Donot trytostart thecarbypushing ortow-
ing. Damage tothe catalytic converters and
other components ofthe car may result.

160
PracticalTips,Emergency Service
A

Warning!
Risk ofdamage andserious personal injury
due toshort circuit.

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Use only jumper cablesofadequate diameter
cross-section andfitted withcompletely insu-
lated alligator clips.

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Follow allwarnings andinstructions ofthe
jumper cablemanufacturer.

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When connecting jumpercables, makesure
that they cannot getcaught inany moving
parts inthe engine compartment.
The jumper cablesmustbelong enough so
that neither vehicles norcables touchanother.

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The vehicles mustnotbeincontact, otherwise
current mightflowassoon asthe positive ter-
minals areconnected.

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The cable clamps mustnotbeallowed tocon-
tact each other whenoneendofthe jumper ca-
bles areconnected toabattery.

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Ensure thattools orconductive jewellery
(rings, chains, watchstraps) donot come into
contact withliveparts ofthe vehicle.

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Improper hook-upofjumper cablescanruin
the alternator.
Danger
ofcaustic burns.

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Donot lean over thebattery.

Danger ofgas explosion.

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Improper useofbooster batterytostart a
vehicle maycause anexplosion, resultingin
severe personal injuries.

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Keep sources ofignition awayfromthebat-
tery, e.g.open flame, burning cigarettes or
sparking duetocable contact orwelding work.

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Adischarged batterycanfreeze evenat

WFj-lOoC.

Before connecting Jumpercables, afrozen bat-
tery must bethawed out.

Technical Data

Engine data

Type

Number ofcylinders
Bore
Stroke
Cubic capacity
Compression ratio
Net-horsepower, SAE
J
1349
at crankshaft speed
Net torque, SAE
J
1349
at crankshaft speed
Alternator Engine control

Driving Performance*

Maximum speed
Acceleration 0- 100 km;1l (62mph)
M
96/79

Horizontally opposedengine,liquidcooled

6
3.94 in./lOO mm
3.0 in./76.4 mm
219.7 cu.in./3600 cm
3

11.7:1
380 hp/280 kW
7400 rpm
285 ft.Ib./385 Nm
5000 rpm
1680 W/120 A
Stationar yhigh-voltage distribution,sequentialinjection,
cylinder-selective knock-control,stereooxygen sensorclosed-loop control,diagnostic system,
4 overhead camshafts, PorscheVarioCam, hydraulicvalveclearance compensation
190 mph/306 km;1l
4.5 seconds

*
At DIN empty weight andhalfload, without performance-inhibiting extraequipment
Technical Data

Tires,Rims,Tracks

Tire RimRimoffset
Track
Summer tires
front
235/40ZR18(91 Y)
8.5Jx 18 H2 40mm
58.6in/1488 mm
rear 295/30ZR18(98Y)
11Jx 18 H2
63mm 58.6in/1488 mm

Snow tires
front
225/40R18 92V M+S XL 8Jx 18 H2
50mm 57.8in/1468 mm
rear 265/35R18 97V M+S XL
*

10Jx18H2 65mm 58.4in/1484 mm
The load capacity coefficient (e.g."92") andmaximum speedcodeletter (e.g."V")areminimum requirements.

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Warning!
Installation ofsizes notauthorized by
Porsche mayhave adangerous effecton
the driving stability andcould result in
severe personal injuryordeath.
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Before mounting newtires, check withyour
Porsche dealeraboutthecurrent release
status.

Tire andrimsizes
Extensive testsareperformed beforespecific tiresandwheels areapproved byPorsche. YourPorsche dealerhasinfor-
mation aboutapproved tiresandwheels andishappy toassist you.
If aftermarket tiresand/or wheels areinstalled whicharenotapproved byPorsche, thevehicle's roadability andhandling
characteristics mightbeimpaired. SincePorsche hasnodata onsuch combinations, Porschecannotstandbehind the
safety ordurability ofthese aftermarket combinations.

Snow chains
Canbemounted onlyonthe rear wheels;
maximum speed30mph/50 km/h.

Use only Porsche authorized fine-linkcross-type oredge chains.

Snow chain clearance canbeguaranteed onlyonthe tire
+
rim combination marked*.

Technical Data