2010 PORSCHE 911 GT3 fuel consumption

Before driving off...
13
Break in hints for the first
2,000 miles/3,000 kilometers The following tips will be helpful in obtaining
optimum performance from your new Porsche.
Despite the most modern, high-precision manufac-
turing methods, the moving parts must still wear
in with each other. This wearing-in occurs mainly in
the first 2,000 miles/3,000 kilometers.Therefore: fPreferably take longer trips.
fAvoid frequent cold starts with short-distance
driving whenever possible.
fAvoid full throttle starts and abrupt stops.
fDo not exceed maximum engine speed of
4,200 rpm (revolutions per minute).
fDo not run a cold engine at high rpm either in
Neutral or in gear.
fDo not let the engine labor, especially when
driving uphill. Shift to the next lower gear in
time (use the most favorable rpm range).
fNever lug the engine in high gear at low
speeds. This rule applies at all times, not just
during the break-in period.fDo not participate in motor racing events,
sports driving schools, etc. during the first
2,000 miles/3,000 kilometers.
There may be a slight stiffness in the steering,
gear-shifting or other controls during the break-in
period which will gradually disappear.
Break in brake pads and brake discsNew brake pads and discs have to be “broken in”,
and therefore only attain optimal friction when the
car has covered several hundred miles or km.
The slightly reduced braking ability must be
compensated for by pressing the brake pedal
harder. This also applies whenever the brake pads
and brake discs are replaced.
A significant amount of brake noise may be heard
during the break-in period.New tires New tires do not have maximum traction. They
tend to be slippery.
fBreak in new tires by driving at moderate
speeds during the first 60 to 120 miles/100 to
200 km. Longer braking distances must be
anticipated.
Engine oil and fuel consumption During the break-in period oil and fuel consump-
tion may be higher than normal.
fPlease see the chapter “TECHNICAL DATA” on
Page 236.
As always, the rate of oil consumption depends on
the quality and viscosity of oil, the speed at which
the engine is operated, the climate and road
conditions, as well as the amount of dilution and
oxidation of the lubricant.
fMake a habit of checking engine oil with every
refueling, add if necessary.
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118
Instruments, On-Board Computer
A- Digital speedometer
B-Central display
C- Bottom displayFunctions and display possibilitiesNote
The available items and displays in the on-board
computer depend on the equipment of your
vehicle. For this reason it is possible that some
of the items and displays shown here are not
available in your on-board computer.Basic setting
– Central display: .... Radio station
The central line B of the on-board computer can
be selected in the SET menu.
Calling on-board computer functions in
display “C”
fPush operating lever up or down
(selection field D must be switched off).
The following displays can be called step by step:
– Average speed (ø mph),
– Average consumption (ø mpg),
– Range on remaining fuel (mls ),
– Tire pressure
– Navigation information
(if activated in the SET menu).
Note
The values “Average speed”, “Average consump-
tion” and “Daily trip mileage” can be reset to zero
in the SET menu.10_GT3_21.book Seite 118 Donnerstag, 4. Juni 2009 12:48 12

Instruments, On-Board Computer
147
General information regarding the
on-board computer functionsRange on remaining fuel
The range on remaining fuel is continuously recal-
culated during the journey based on the fuel level,
current consumption and average consumption.
The more the fuel level falls, the more spontan-
eously the display reacts. For this reason, the
range on remaining fuel is not displayed if less
than 9 miles (15 kilometers).
If the vehicle's inclination changes while driving or
refueling, incorrect range information may
temporarily be given.
Note
If the tank is nearly empty and you top up with only
a small quantity of fuel, an accurate range on
remaining fuel is impossible.Average consumption and average speed
The values displayed are based on the distance
travelled since the last reset to “zero”.
You can set the starting time for a measurement
before or during the trip.
Switching the ignition off does not reset the
measurements. It is therefore possible to collect
values over long periods.
Disconnecting the car battery will cause these
memories to be erased.
Tire pressure
The Tire pressure function of the on-board
computer displays the tire pressures dependent
on temperature in the four wheels. You can watch
the tire pressure rise and fall while driving.
The display is only for information.
fTo correct the tire pressures, always use the
displayed values from the “Info pressure”
display in the tire pressure menu.
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Maintenance, Car Care
159
Engine-compartment blower, radiator fan The radiator and radiator fan are in the front of the
car.
The engine-compartment blower is mounted on
the engine compartment lid.
Warning!
Risk of injury.
After the engine is switched off, the engine-
compartment temperature is monitored for
approx. 30 minutes.
During this period, and depending on tempe-
rature, the engine-compartment blower may
continue to run or start to run.
fCarry out work in these areas only with the
engine off, the ignition off, and exercise
extreme caution.
Risk of injury. The radiator fan in the front
end of the car may be operating or unexpec-
tedly start operating when the engine is
switched on.
fCarry out work in these areas only with the engine switched off.
Engine Oil It is important to perform oil changes regularly in
accordance with the intervals specified in the
“Maintenance” booklet.Engine oil consumption It is normal for your engine to consume oil.
The rate of oil consumption depends on the quality
and viscosity of oil, the speed at which the engine
is operated, the climate, road conditions as well
as the amount of dilution and oxidation of the
lubricant.
If the vehicle is used for repeated short trips, and
consumes a normal amount of oil, the engine oil
measurement may not show any drop in the oil
level at all, even after 600 miles (1,000 km) or
more. This is because the oil is gradually
becoming diluted with fuel or moisture, making it
appear that the oil level has not changed.
The diluting ingredients evaporate out when the
vehicle is driven at high speeds, as on an
expressway, making it then appear that oil is
excessively consumed after driving at high
speeds.
If the conditions you drive your vehicle in are
dusty, humid, or hot, the frequency of the oil
change intervals should be greater. If the vehicle is driven at a high rate of speed,
climatic conditions are warm, and the load is high,
the oil should be checked more frequently, as
driving conditions will determine the rate of oil
consumption.
– The engine in your vehicle depends on oil to
lubricate and cool all of its moving parts.
Therefore, the engine oil should be checked
regularly and kept at the required level.
– Make it a habit to have the engine oil level
checked at every refueling.
– The oil pressure warning light is not an oil level
indicator.
The oil pressure warning light indicates serious
engine damage may be occuring when lit, if
engine rpm is above idle speed.
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164
Maintenance, Car Care
Fuel Economy Fuel economy will vary depending on where,
when and how you drive, optional equipment
installed, and the general condition of your
car.
A car tuned to specifications and correctly
maintained, will help you to achieve optimal
fuel economy.
fHave your vehicle tuned to specifications.
Air cleaner should be dirt free to allow proper
engine “breathing”.
Battery should be fully charged.
Wheels should be properly aligned.
Tires should be inflated at correct pressure.
fAlways monitor your fuel consumption.
fDrive smoothly, avoid abrupt changes in speed
as much as possible.
fAvoid jack rabbit starts and sudden stops.
fDo not drive longer than necessary in the lower
gears. Shifting into a higher gear early without
lugging the engine will help save fuel.
fProlonged “warm up” idling wastes gas. Start
the vehicle just before you are ready to drive.
Accelerate slowly and smoothly.
fSwitch off the engine if stationary for longer
periods. fAny additional weight carried in the vehicle
reduces fuel economy. Always keep cargo to a
minimum and remove all unnecessary items.
fOrganize your trips to take in several errands
in one trip.
fAll electrical accessories contribute to incre-
ased fuel consumption.
fOnly switch on the air conditioning when neces-
sary.
The EPA estimated miles per gallon (mpg) is
to be used for comparison purposes, actual
mileage may be different from the estimated
mpg, depending on your driving speed,
weather conditions and trip length. Your
actual highway mileage will probably be less
than the estimated mpg.
fPlease observe all local and national speed
limits.
Operating your Porsche in other
Countries Government regulations in the United States and
Canada require that automobiles meet specific
emission regulations and safety standards. There-
fore, cars built for the U.S. and Canada differ from
vehicles sold in other countries.
If you plan to take your Porsche outside the conti-
nental limits of the United States or Canada, there
is the possibility that
– unleaded fuel may not be available;
– unleaded fuel may have a considerably lower
octane rating. Excessive engine knock and
serious damage to both engine and catalytic
converters could result;
– service may be inadequate due to lack of
proper service facilities, tools or diagnostic
equipment;
– replacement parts may not be available or very
difficult to get.
Porsche cannot be responsible for the
mechanical damage that could result
because of inadequate fuel, service or parts
availability.
If you purchased your Porsche abroad and want to
bring it back home, be sure to find out about
shipping and forwarding requirements, as well as
current import and customs regulations.
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Index
245
Driving
Hints .................................................... 11
Driving performance ................................... 240
Drop-center rim .......................................... 194
Dynamic cornering light
Functional description............................ 74
Dynamic engine mounting.............................. 63EElectrical system ........................................ 207
Emergency flasher switch.............................. 72
Emergency operation
Central locking...................................... 23
Ignition key ........................................... 69
Lids ................................................... 210
Tank flap ............................................ 165
Emergency service ..................................... 183
Emergency starting with jumper cables 217, 218
Emission control system ............. 116, 168, 169
Engine
Checking the oil level........................... 143
Exhaust .................................................. 8
Number .............................................. 235
Oil consumption ............................ 13, 159
Oil level .............................................. 160
Oil level indicator................................ 143
Oil pressure ........................................ 115
Oil temperature................................... 108
Oils ............................................ 159, 239
Speeds ........................................ 13, 240
Starting ................................................ 70
Stopping .............................................. 71Engine compartment
Blower .........................................71, 112
Blower fan ..........................................112
Care...................................................177
Lid .................................................85, 86
Lid warning light ....................................85
Engine oil
Choosing the right oil ..........................160
Consumption ........................................13
Topping off .........................................160
Viscosity.............................................160
Exhaust
Pipes .....................................................8
Tailpipes, stainless steel ......................178
External antenna ...........................................91
External audio source, AUX ............................93
FFiller flap ....................................................165
Filling pressure, tire.....................................237
Fire extinguisher ...........................................94
Flat tire ......................................................203
Floor mats ..................................................180
Fluids and fuels ...........................................239
FM reception ................................................89
Fog light, rear ...............................................73
Footbrake.....................................................54
Fresh air intake ...........................................101
Front axle lift system
Functional description ............................64
Lowering front axle................................65
Raise front axle .....................................64
Front lid .................................................85, 86Fuel................................................... 113, 165
Containers ..................................... 7, 167
Economy ........................................... 164
Evaporation control ............................ 167
Fuels containing ethanol ...................... 167
Level gauge ....................................... 113
Level warning light.............................. 113
Recommendation ....................... 166, 167
Recommendations.............................. 166
Tank.................................................. 166
Fuses, replacing......................................... 209
GGarage
Door ................................................... 71
Door opener ........................................ 95
Lift .................................................... 206
Glove compartment ...................................... 84
Gong ....................................... 17, 68, 73, 120
Ground clearance ........................................... 8HHalogen headlights
Changing bulb for low beam ................ 222
Handbrake ................................................... 53
Head restraints ............................................ 33
Headlights ................................................. 220
Adjusting ................................... 228, 229
Beam adjustment ................................. 74
Cleaning system ................... 76, 170, 239
Flasher ................................................ 75
Heated rear window..................................... 32
Heated rear window/Door mirror heating ..... 102
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Index
247
OOctane rating ..................................... 166, 167
Odometer .................................................. 109
Off delay ...................................................... 74
Oil ............................................................. 159
Checking level .................................... 143
Choosing the right oil .......................... 160
Consumption ........................................ 13
Level checks ...................................... 160
Level indicator .................................... 143
Pressure ............................................ 115
Temperature....................................... 108
Topping off engine oil .......................... 160
OIL Display and measurement of the
engine oil level ............................................ 143
On-board computer ..................................... 117
Basic settings ............................. 118, 145
Calling on-board computer functions ..... 118
Functions and display possibilities ........ 118
General information ..................... 146, 147
Language versions .............................. 145
Operation, controls ............................. 117
Selecting a radio station ...................... 133
Setting the clock ................................. 146
Switching daytime running lights on/off. 146
Switching on navigation ....................... 133
Tire pressure warnings ........................ 139
Warnings and messages...................... 148
On-board literature .......................................... 2
Operating voice control ............................... 117
Operating your Porsche in other Countries .... 164
Orientation light ............................................ 66
Outside temperatur indicator ....................... 114
Oxygen sensor ........................................... 169
PPaint
Care...........................................174, 176
Data ...................................................235
Parking brake ...............................................53
Warning light.........................................54
Parking light ...........................................73, 75
Particle filter ...............................................172
Passenger compartment monitoring ...............26
Pen holder ....................................................84
Plastic parts ...............................................179
Care...................................................179
Platform lift.................................................206
Porsche Active Suspension Management
(PASM) .........................................................63
Sport mode ..........................................63
Switching off Sport mode ......................63
Porsche Ceramic Composite Brake (PCCB) .......6
Porsche Communication Management (PCM)...89
Porsche Stability Management (PSM) ..............59
Information light ....................................61
Power steering fluid level .....................171, 239
Power windows .............................................21
Practical tips ..............................................183
Putting vehicle into operation .......................213RRadiator fan..........................................71, 159
Radio reception ............................................89
Rain sensor ............................................76, 77
Range on remaining fuel ......................118, 147
Reading light ................................................66
Rear lid ..................................................85, 86
Rear view mirrors..........................................31Rear window defogger.......................... 32, 102
Rear window heating.................................. 102
Recirculating-air button ................................. 99
Refueling ................................................... 166
Relays ....................................................... 207
Remote control ............................................ 19
Readiness ............................................ 20
Replacing battery ............................... 216
Standby funktion .................................. 20
Synchronization.................................... 20
Replacement key.......................................... 18
Replacing bulbs.......................................... 219
Replacing wiper blades............................... 173
Rims
Diameter ........................................... 194
Rim width........................................... 194
TPM sensors...................................... 190
Running in.................................................... 13
SSafety belts ................................................. 38
Cleaning ............................................ 180
Height adjustment................................ 40
Tensioner ............................................ 38
Warning light ........................................ 39
Safety compliance sticker ........................... 234
SC OFF button ............................................. 60
SC+TC OFF button ....................................... 61
Sealing set ................................................ 204
Seals ........................................................ 179
Care .................................................. 179
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