Page 345 of 369
Vehicle Identification, Technical Data
345
Safety compliance stickerThe safety compliance sticker is your assurance
that your new Porsche complies with all applicable
Federal Motor Vehicle Safety Standards which
were in effect at the time the vehicle was manufac-
tured.
The sticker also shows the month and year of pro-
duction and the vehicle identification number of
your car (perforations) as well as the Gross Vehi-
cleWeight Rating and the Gross AxleWeightRat-
ing.
Tire pressure plateThe tire pressure plate is fitted to the driver's
door.
Page 346 of 369
346
Vehicle Identification, Technical Data
Engine DataTy p e
Four-cycle spark-ignition
engine
Number of cylinders 8
Bore
3.66 in. (93 mm)
Stroke 3.27 in. (83 mm)
Displacement
275 cu. in. (4511 cm
3)
Compression ratio 9.5 : 1
Net-horsepower, SAE J 1349
450 HP (331 kw)
at engine speed 6000 rpm
Net. torque, SAE J 1349
460 ftlb. (620 NM)
at engine speed 2250 - 4750 rpm
Maximum permitted engine speed
6500 rpm
Page 347 of 369
Vehicle Identification, Technical Data
347
TransmissionTransmission ratio1st gear
4.15 : 1
2nd gear 2.37 : 1
3rd gear
1.56 : 1
4th gear 1.16 : 1
5th gear
0.86 : 1
6th gear 0.69 : 1
Reduction gear
2.70 : 1
Reverse gear 3.39 : 1
Final drive ratio
3.70 : 1
Page 348 of 369

348
Vehicle Identification, Technical Data
Tires, Rims, Tracks
Tires Wheel Rim offset Track
front/rear front/rear front rear
Summer tires
255/55 R 18 109 Y XL
1)
8 J x 18
57 mm
64.8 in. (1647 mm)
65.4 in. (1662 mm)
275/45 R 19 108 Y XL 9 J x 19 60 mm 64.6 in. (1641 mm) 65.2 in. (1656 mm)
275/40 R 20 106 Y XL
9 J x 20
60 mm
64.6 in. (1641 mm)
65.2 in. (1656 mm)
275/40 R 20 106 Y XL 9 J x 19/10 J x 20 60 mm / 55 mm 64.6 in. (1641 mm) 65.6 in. (1666 mm)
Winter tires
235/60 R 18 107 H XL
1)
8 J x 18
57 mm
64.8 in. (1647 mm)
64.8 in. (1662 mm)
255/55 R18 109 V XL
1)
8 J x 18 57 mm 64.8 in. (1647 mm) 65.4 in. (1662 mm)
255/50 R19 107 V XL
1)
9 J x 19
60 mm
64.6 in. (1641 mm)
65.2 in. (1656 mm)
All-Season
255/55 R 18 109 V XL
1)
8 J x 18
57 mm
64.8 in. (1647 mm)
65.4 in. (1662 mm)
All-Terrain
235/60 R 18 107 T XL
1)
8 J x 18
57 mm
64.8 in. (1647 mm)
65.4 in. (1662 mm)
The load capacity coefficient (e.g. “106”) and maximum speed code letter (e.g. “T”) for permitted top speed are
minimum requirements.
When fitting new tires or changing tires: Please observe the chapter “TIRES/WHEELS” on Page 269.
Tire and rim sizes
The authorization of tire and rim sizes is determined on the basis of extensive testing.
Your authorized Porsche dealer will be pleased to advise you about the current authorization status.
Refitting with sizes not authorized by Porsche may have a dangerous effect on driving stability.
Page 349 of 369
Vehicle Identification, Technical Data
349
1)Snow chainsSnow chain clearance can be guaranteed only with the tire + rim combination marked
1).
The best possible handling characteristics are achieved when snow chains are fitted on all four wheels of the
vehicle. However, it is also possible to fit snow chains on only one axle (preferably the rear axle).
For safety reasons, vehicles with snow chains must not be driven faster than 30 mph (50 km/h).
fObserve the respective road traffic regulations.
fUse only Porsche-authorized fine-link cross-type or edge chains.
Collapsible spare wheel
195/75 18
6.5 J x 18
Tires Wheel Rim offset Track
front/rear front/rear front rear
Page 350 of 369
350
Vehicle Identification, Technical Data
Tire Pressures, ColdThese tire filling pressures apply only to the tire makes and types approved by Porsche.
Please observe the chapter “TIRES/WHEELS” on Page 269.Partially loaded
Tire size Front axle Rear axle
235/60 R 18
38 psi (2.6 bar) 43 psi (2.9 bar) 255/55 R 18
275/45 R 19
275/40 R 20
195/75 - 18 collapsible spare wheel 51 psi (3.5 bar) 51 psi (3.5 bar)
Fully loaded
Tire size Front axle Rear axle
235/60 R 18
38 psi (2.6 bar) 50 psi (3.4 bar) 255/55 R 18
275/45 R 19
275/40 R 20
195/75 - 18 collapsible spare wheel 51 psi (3.5 bar) 51 psi (3.5 bar)
Page 351 of 369

Vehicle Identification, Technical Data
351
CapacitiesUse only fluids and fuels authorized by Porsche. Your authorized Porsche dealer will be pleased to advise you.
Your Porsche has been designed so that it is not necessary to mix any additives with oils or fuels.1 Depending on equipment levelEngine oil change quantity without oil filter
approx. 8.5 quarts (8.0 liters)
Engine oil change quantity with oil filter approx. 9.0 quarts (8.5 litres)
Reference indication is the level on the oil dipstick.
Please observe the chapter “ENGINE OIL LEVEL” on Page 236.
Coolant
1)
approx. 4.8 – 5.5 U.S. gallons (18 - 21 liters)
Automatic transmission with torque converter approx. 10.6 quarts (10.1 liters)
Transfer box
approx. 0.9 quarts (0.85 liter)
Front-axle differential approx. 1.1 quarts (1.0 liter)
Rear-axle differential
approx. 1.5 quarts (1.4 liters)
Locking rear differential approx. 1.7 quarts (1.6 liters)
Fuel tank
approx. 26.4 U.S. gallons (100 liters),
including approx. 3.1 U.S. gallons (12 liters) reserve
Fuel quality The engine is designed to provide optimum performance and fuel consumption if unleaded premi-
um fuel with 98 RON/88 MON is used.
If unleaded premium fuels with octane numbers of at least 95 RON/85 MON are used, the engine's
“Electronic Oktane™ knock control“ automatically adapts the ignition timing.
Power steering
approx. 1.6 quarts (1.5 liters) Pentosin CHF 11 S
®
Brake fluid approx. 1.0 quart (0.95 liter)
Use only Original Porsche brake fluid.Window/headlight washer system
approx. 7.9 quarts (7.5 liters)
Page 352 of 369

352
Vehicle Identification, Technical Data
Weights1)Empty weight includes 165 lbs. (75 kg) driver and baggage share.2)The maximum gross weight must not be exceeded.
Note: If additional equipment is installed, the useful load will be correspondingly less.3)Use only Original Porsche Roof Transport System. Empty weightEmpty weight (depending on equipment)per DIN 70020 5192 - 5875 lbs. (2355 - 2665 kg)per 70/156/EWG
1)
5357 - 6040 lbs. (2430 - 2740 kg)
Maximum axle load, front
2)
3285 lbs. (1490 kg)
Maximum axle load, rear
2)
3748 lbs. (1700 kg)
Maximum gross weight 6790 lbs. (3080 kg)
Trailer operation Canada/USAMaximum gross weight 6790 lbs. (3080 kg)Maximum axle load, front/rear axle
3285/3968 lbs. (1490/1800 kg)
Roof load
Maximum roof load
3)
when roof rail is fitted
3)
225 lbs (100 kg)
165lbs. (75kg)
Towing capacity/vehicle + trailer weight
Maximum towing capacity, braked (up to a max. 12% slope)
7716 lbs. (3500 kg)
Maximum towing capacity, unbraked 1654 lbs. (750 kg)
Maximum vehicle + trailer weight
14506 lbs. (6580 kg)
Maximum trailer hich load 617 lbs. (280 kg)