2004 PORSCHE 911 GT3 oil viscosity

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
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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.

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Make ahabit ofchecking engineoilwith every
fuel filling, addifnecessary.

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.

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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.

Engine OilRecommendation

Recommended oilviscosity rangesdependent onambient temperatures
Ambient temperature SAEViscosity Range
seasonal engineoils
generally upto-13°Fj-25°C OW-40
5W-40
5W-50
generally upto-22°F nO°C OW-40

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Use only engine oilsapproved byPorsche.
If in doubt askyour authorized PorschedealerforPorsche testedandapproved all-season oils.

Maintenance,CarCare
117

Oilchange

The engine oilhas tobe changed atthe intervals
listed inyour
Maintenance Schedule.

'" Please observe thechapter "CAPACITIES" on
Page 185.
We recommend thatyouhave theengine oil
changed atyour Porsche dealer,whohasthere-
quired oilsand thenecessary fillingequipment.
If you suspect anoilleak inthe engine haveyour
dealer checkitout immediately.
All current engineoilsarecompatible witheach
other, i.e. when making anoilchange itis not nec-
essary toflush theengine ifyou wish touse adif-
ferent brandorgrade ofoil.
Since, however, eachbrand ofoil has aspecial
composition, youshould, ifpossible, usethe
same oilbrand ifit becomes necessary totop up
between oilchanges.
Porsche engineshavelongintervals betweenoil
changes. Youcanmake bestuseofthese longoil
change intervals byusing multigrade oilssince
these arelargely independent ofseasonal fluctua-
tions intemperature.

1
Maintenance, CarCare If
your vehicle isused frequently instop-and-go
traffic incold weather, theengine willnot always
be properly warmedup.
Condensation fromproducts ofcombustion may
accumulate inthe oil.Inthis case, itis advisable
to change theoilmore frequently sothat your en-
gine once again has100% efficient engineoil.

Engine oilperformance class

Engine oilisnot only alubricant, butalso serves
to keep theengine clean,toneutralize thedirt
which penetrates intotheengine through combus-
tion andtoprotect theengine against corrosion.
To perform thesefunctions, theoilisprovided
with additives whichhavebeen specially devel-
oped forthese functions.
The efficiency ofan oilisexpressed, forexample,
by the API, ILSAC orACEA classifications.
Viscosity

Like allliquids, engineoilisviscous whencold,
and thin-bodied whenwarm. Theviscosity ofan oil
is expressed byitsSAE class. Forcold viscosity
(measured attemperatures below32°F
jO°C)
the
SAE class isgiven asanumber andtheletter "W"
(as inwinter), forhot viscosity (measured at
212°FjlOO°C) theSAE class isgiven onlyasa
number.
The viscosity ofan oilis,therefore, alwaysthe
same ifithas thesame number ofan SAE class.
Oils with twoviscosities arecalled multigrade oils;
oils with onlyoneviscosity aretermed single-
grade oils.
Single-grade oilscan notbeused inyour engine.
The viscosity ofthe engine oilfor your Porsche
has tobe chosen according tothe ambient tem-
perature giveninthe engine oilrecommendation
table.