2004 PORSCHE 911 GT3 fuel consumption

Break inhints forthe first
1,000 miles/l,600 kilometers
The following tipswillbehelpful inobtaining opti-
mum performance fromyournewPorsche.
Despite themost modern, high-precision manufac-
turing methods, itcannot becompletely avoided
that themoving partshavetowear inwith each
other. Thiswearing-in occursmainlyinthe first
1,000 milesj1,600 km.

Therefore:
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Preferably takelonger trips.

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Avoid frequent coldstarts withshort-distance
driving whenever possible.

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Avoid fullthrottle startsandabrupt stops.

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Donot exceed maximum enginespeedof
4,200 rpm(revolutions perminute).

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Donot run acold engine athigh rpmeither in
Neutral oringear.

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Donot letthe engine labor,especially when
driving uphill.Shifttothe next lower gearin
time (usethemost favorable rpmrange).

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Never lugthe engine inhigh gear atlow
speeds. Thisruleapplies atall times, notjust
during thebreak-in period.
Controls, Instruments
I>

Donot participate inmotor racing events,
sports driving schools, etc.during thefirst
1,000 milesj1,600 kilometers.
There maybeaslight stiffness inthe steering,
gear-shifting orother controls duringthebreak-in
period whichwillgradually disappear.

Break inbrake padsanddiscs

New brake padsanddiscs havetobe "broken in",
and therefore onlyattain optimal frictionwhenthe
car has covered severalhundred milesorkm.
The slightly reduced brakingabilitymustbecom-
pensated forbypressing thebrake pedalharder.
This alsoapplies whenever thebrake padsand
brake discsarereplaced.

New tires

New tires donot have maximum traction.They
tend tobe slippery.

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Break innew tires bydriving atmoderate
speeds duringthefirst 60to120 milesj1 00to
200 km.Longer braking distances mustbean-
ticipated.
Engine
oilconsumption

During thebreak-in periodoilconsumption maybe
higher thannormal.
As always, therate ofoil consumption dependson
the quality andviscosity ofoil, the speed atwhich
the engine isoperated, theclimate androad con-
ditions, aswell asthe amount ofdilution andoxi-
dation ofthe lubricant.

I>
Make ahabit ofchecking engineoilwith every
fuel filling, addifnecessary.

Functionsanddisplay possibilities

A .Selection
field

B .
Continuation arrowsymbol

C .
Top display

D·
Central display

E .
On·board computer display

Basic setting

- Top display: Odometer
- Central display: Tripodometer
You canchange bothdisplays tosuit your
requirements byusing the"SET" menu.
Controls, Instruments
Calling
on-board computer functionsin
display "E"

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Push operating leverupordown
(selection fieldAmust beswitched off).
The following displayscanbecalled stepbystep:
- Outside temperature
(OF),

- Average speed(0mph),
- Average consumption (0mpg),
- Range onremaining fuel(miles
-:>.il'),

Canada vehicles

The units inthe on·board computer aredisplayed
in kilometers, litersandDC.
The values "Tripodometer", "Averagespeed"and
"Average consumption" canbereset tozero using
the "BC" menu.

Note

Pulling theoperating levertothe rear 4takes you
directly fromavalue which canbereset tothe
"BC" menu.
Switching
selectionfield"A"onoroff

I>
Push operating leverforward orback.

Arrow symbol "B"forcontinuation

Arrow symbol
"V

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Push operating leverdown inorder tocontinue
the menu.
Arrow symbol..:::..

I>
Push operating leverupinorder tocontinue
the menu.

"SET"

Basic setting ofon-board computer

Switching onselection field"A"

!>
Push operating leverforward.

Changing thebasic setting ofthe on-board
computer

!>
Select "SET"withtheoperating lever.
!>

Push operating leverforward.

Reset

- Reset all,
Reset tripcounter,
Reset average consumption,
Reset average speed

Speedometer: kmjmls

- Change overbetween kilometers andmiles

Display (Individual combination ofupper andcentral
lines ofthe on-board computer)
- Changing topdisplay

Total mileage
Trip counter
Audio information (setradio station)
Outside temperature
Range onremaining fuel
Average speed
Average consumption

Changing centraldisplay

Total mileage
Trip counter
Outside temperature
Range onremaining fuel
Average speed
Average consumption
Basic
setting

- Restore thebasic setting ofthe on-board
computer

Language

- Select language version

Consumption

- Select unitforfuel consumption:
1/100 km,mis/gal (USA),mpg(UK), km/l

Temperature

- Select unitfortemperature:

°C,
of

12j24h
mode

- Select timemode:
12h (small squares onthe leftside ofthe time
display forAMjPM),
24h
Controls,Instruments
73

"OFF"

On-board computer display

Switching onselection field"A"

c>
Push operating leverforward.

Switching on-boardcomputer displayoff

c>
Select "OFF"withtheoperating lever.

c>
Push operating leverforward.
Display isswitched off.

Switching on-boardcomputer displayon
again

c>
Push operating leverinany direction.
Controls, Instruments
General
information regardingtheon-
board computer functions

Range onremaining fuel

The range onremaining fueliscontinuously re-
computed whiledriving basedonfuel level, cur-
rent consumption andaverage consumption.
The more thefuel level falls, themore spontane-
ously thedisplay reacts.Forthis reason, rangeon
remaining fuelisnot displayed ifless than 15kilo-
meters (9miles).

If
the vehicle's inclination changeswhiledriving or
refuelling, incorrectrangeinformation maytempo-
rarily begiven.

Note

If the tank isnearly empty andyou add only asmall
quantity offuel, thiscannot beused tocalculate
the range onremaining fuel.
Average
consumption andaverage speed

The displayed valuesarebased onthe distance
travelled sincethelast reset to"zero".
You can setthe starting timeforameasurement
before orduring thetrip.
Switching theignition offdoes notreset themea-
surements. Valuescanthus becollected overlong
periods.
Disconnecting thecarbattery clearsthesememo-
ries.

Outside temperature

The outside temperature displaydoesnotindi-
cate, ifice ison the road.
Even ifatemperature above32°F
(GoC)
isdis-
played, icemay stillform onthe road, forinstance
on bridges orwhen theroad passes through a
heavily shaded area.

RoofTransport System

Follow theseparate instructions forfitting
the Roof Transport System.

Fitting commercially availableluggageracksis

not
possible.
The
Porsche RoofTransport System
allowsthe
transport ofvarious sportsandhobby equipment.
Your authorized Porschedealerwillbepleased to
inform youabout themany usesofthe Roof Trans-
port System.
Controls, Instruments
A

Warning!
Risk ofan accident, lossofcontrol anddam-
age tothe vehicle.

c>
Completely removetheRoof Transport Sys-
tem before usinganautomatic carwash.

c>
Fitthe side support elements ofthe basic car-
rier only inconjunction withthetransverse sup-
porting pipes.

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The permissible useableloadof165 Ibs
(75 kg), thepermissible totalvehicle weight
and thepermissible axleloads mustnotbe
exceeded. Please observe thechapter "WEIGHTS" on
Page 186.
Items ofluggage mustnotproject substantially
beyond theside ofthe load area.
Distribute loadevenly, withheavy itemsaslow
as possible.
Every itemmust befixed andsecured tothe
basic carrier witharope orlashing strap(do
not use elastic rubbertensioners).

c>
Before everyjourney, andatregular intervals
during longtrips, check thatRoof Transport
System andload aresecure.
Retighten ifnecessary andsecure additionally
by locking.
c>

Inthe loaded state,adjust maximum speedto
the nature, sizeandweight ofthe load being
carried.
In no case, however, shouldyoudrive atmore
than 90mph (140 km/h).

c>
With thebasic carrier installed andnoload, do
not exceed amaximum speedof110 mph
(180 km/h) sincedriving stability willbead-
versely affected.
Adapt yourdriving styleandspeed tothe
changed conditions.
Nevertheless, Porscherecommends thatyou
do not exceed theposted speedlimit.

c>
Driving, brakingandsteering behavior ofthe
vehicle change duetothe higher center of
gravity andthegreater wind-resistant area.
You should adaptyourdriving styleappropri-
ately.

Note

Since fuelconsumption andnoise areincreased
with theRoof Transport Systeminstalled, itshould
not remain onthe car ifit is not inuse.

Engine-compartment blower,
radiator fan

The radiator andradiator fansareinthe front of
the car.
The engine-compartment blowerismounted on
the engine compartment lid.

A
Warning!
Risk ofinjury.
After theengine isswitched off,theengine-
compartment andcoolant temperatures are
monitored forapprox. 20minutes.
During thisperiod, anddepending ontem-
perature, theengine-compartment blower
and radiator fansmaycontinue torun or
start torun.

t>
Carry outwork inthese areasonlywiththeen-
gine off,the ignition switched off,and exercise
extreme caution.

1
Maintenance, CarCare
Engine
Oil

Engine oilconsumption

It is normal foryour engine toconsume oil.
The rate ofoil consumption dependsonthe quality
and viscosity ofoil, the speed atwhich theengine
is operated, theclimate, roadconditions aswell
as the amount ofdilution andoxidation ofthe
lubricant.
If the vehicle isused forrepeated shorttrips, and
consumes anormal amount ofoil, the engine oil
measurement maynotshow anydrop inthe oil
level atall, even after600miles (1000 km)or
more. Thisisbecause theoilisgradually becom-
ing diluted withfuelormoisture, makingitappear
that theoillevel hasnotchanged.
The diluting ingredients evaporateoutwhen the
vehicle isdriven athigh speeds, ason anexpress-
way, making itthen appear thatoilisexcessively
consumed afterdriving athigh speeds.
If the conditions youdrive yourvehicle inare
dusty, humid, orhot, thefrequency ofthe oil
change intervals shouldbegreater. If
the vehicle isdriven atahigh rateofspeed,
climatic conditions arewarm, andtheload ishigh,
the oilshould bechecked morefrequently, as
driving conditions willdetermine therate ofoil
consumption.
- The engine inyour vehicle depends onoilto
lubricate andcool allofits moving parts.
Therefore, theengine oilshould bechecked
regularly andkept atthe required level.
- Make ita habit tohave theengine oillevel
checked withevery fuelfilling.
- The oilpressure warninglightisnot anoillevel
indicator.
The oilpressure warninglightindicates serious
engine damage maybeoccuring whenlit,ifen-
gine rpmisabove idlespeed.

FuelEconomy

Fuel economy willvary depending onwhere,
when andhow youdrive, optional equipment
installed, andthegeneral condition ofyour
car.
A car tuned tospecifications andcorrectly
maintained, willhelp youtoachieve optimal
fuel economy.

~ Have yourvehicle tunedtospecifications.
Air cleaner shouldbedirt free toallow proper
engine "breathing".
Battery shouldbefully charged.
Wheels shouldbeproperly aligned.
Tires should beinflated atcorrect pressure.
~ Always monitor yourfuelconsumption.
~ Drive smoothly, avoidabrupt changes inspeed
as much aspossible.
~ Avoid jackrabbit startsandsudden stops.
~ Donot drive longer thannecessary inthe lower
gears. Shifting intoahigher gearearly without
lugging theengine willhelp save fuel.
~ Prolonged "warmup"idling wastes gas.Start
the vehicle justbefore youareready todrive.
Accelerate slowlyandsmoothly.
~ Switch offthe engine ifstationary forlonger
periods.
Maintenance, CarCare ~
Any additional weightcarried inthe vehicle re-
duces fueleconomy. Alwayskeepcargo toa
minimum andremove allunnecessary items.
~ Organize yourtripstotake inseveral errands
in one trip.
~ Allelectrical accessories contributetoin-
creased fuelconsumption.
~ Only switch onthe airconditioning whenneces-
sary.
~ Donot drive withtheRoof Transport System
mounted unlessyouneed it.

The EPA estimated m.p.g.isto be used for
comparison purposes,actualmileage may
be different fromtheestimated m.p.g.,
depending onyour driving speed,weather
conditions andtriplength. Youractual
highway mileagewillprobably beless than
the estimated m.p.g.

~ Please observe alllocal andnational speed
limits.
Operating
YourPorsche inother
Countries

Government regulationsinthe United States and
Canada requirethatautomobiles meetspecific
emission regulations andsafety standards. There-
fore, carsbuiltforthe U.S. andCanada differfrom
vehicles soldinother countries.
If you plan totake your Porsche outsidetheconti-
nentallimits ofthe United States orCanada, there
is the possibility that
- unleaded fuelmay notbeavailable;
- unleaded fuelmay have aconsiderably lower
octane rating.Excessive engineknockandse-
rious damage toboth engine andcatalytic con-
verters couldresult;
- service maybeinadequate duetolack ofprop-
er service facilities, toolsordiagnostic equip-
ment;
- replacement partsmaynotbeavailable orvery
difficult toget.

Porsche cannotberesponsible forthe
mechanical damagethatcould result
because ofinadequate fuel,service orparts
availability.

If you purchased yourPorsche abroadandwant to
bring itback home, besure tofind outabout ship-
ping andforwarding requirements, aswell ascur-
rent import andcustoms regulations.

Temperaturgauge 54,56
Warning light 54,56
Cruise contro!. 58,86,87
Curb light 172
D
Dashboard 48
Defrosting windows 29,90, 91
Diagnostic socket 17,153
Diagrams 187
Dimensions 186
Door 21
Guard 172
Handles 21
Locks 21,132
Windows 21,26,27,133
Door mirror 28
Heating 29
Driving hints 14
Driving performance 182
E
Electrical system 152
Emergency flasher 81
Emergency operation
Central locking 23
Lids 154
Tank flap 121
Emergency service 140
Emergency startingwithjumper cables160,161
Emission controlsystem 7,66, 124, 125
Engine Checking oillevel 71,115 Dipstick
116
Exhaust 10
Number 180
Oil consumption 16,114
Oillevel 116
Oil level gauge 71
Oil pressure gauge 54,56,65
Oil pressure warninglight.. 54,56,65
Oils 114,185
Speeds 16,182
Starting 52
Stopping 53
Engine compartment
Blower 53,62
Lid 98,99
Lid warning light.. 54,56,98
Light 172

F

Fog lights 82,169, 171
F ootbrake 41
Footweillights 47
Fresh airintake 93
Front hood 99
Fuel 4,63, 121
Containers 10
Economy 120
Evaporation control 126
Level gauge 54,56,63
Level warning light 63
Recommendation 122,123
Tank 122
Warning light... 54,56
Fuses 153
G

Garage lift 148
Gearshifting 109
Glove compartment. 96
Gong 18,51, 69, 79
Ground clearance 9,186
H
Headlights 82,83,164
Adjusting 175,176
Cleaning system 84,126, 185
Heated rearwindow 29
Heating 88
High beam
Indicator light... 54,56,61
Lever 82
Hoods 98,99
Horn 17,22, 23

I

Identification number 100,180
Ignition lock 50
Immobilizer 19
Indicator lights 54
Infrared passenger compartment monitoring..24
Instrument panel 48
Instruments 54
Lights 59,82
Interior light 46,173
Interior mirror 28
Intermittent operationswitch 84
Index