204
Maintenance, Car Care
Oil change The engine oil has to be changed at the intervals
listed in your Maintenance Schedule.
fPlease observe the chapter “CAPACITIES” on
Page 291.
We recommend that you have the engine oil
changed at your Porsche dealer, who has the re-
quired oils and the necessary filling equipment.
If you suspect an oil leak in the engine have your
dealer check it out immediately.
All current engine oils are compatible with each
other, i. e. when making an oil change it is not nec-
essary to flush the engine if you wish to use a dif-
ferent brand or grade of oil.
Since, however, each brand of oil has a special
composition, you should, if possible, use the
same oil brand if it becomes necessary to top up
between oil changes.
Porsche engines have long intervals between oil
changes. You can make best use of these long oil
change intervals by using multigrade oils since
these are largely independent of seasonal fluctua-
tions in temperature. If your vehicle is used frequently in stop-and-go
traffic in cold weather, the engine will not always
be properly warmed up.
Condensation from products of combustion may
accumulate in the oil. In this case, it is advisable
to change the oil more frequently so that your en-
gine once again has 100% efficient engine oil.
Engine oil performance class Engine oil is not only a lubricant, but also serves
to keep the engine clean, to neutralize the dirt
which penetrates into the engine through combus-
tion and to protect the engine against corrosion.
To perform these functions, the oil is provided with
additives which have been specially developed for
these functions.
The efficiency of an oil is expressed, for example,
by the API, ILSAC or ACEA classifications.
Viscosity Like all liquids, engine oil is viscous when cold,
and thin-bodied when warm. The viscosity of an oil
is expressed by its SAE class. For cold viscosity
(measured at temperatures below 32°
F/0°
C) the
SAE class is given as a number and the letter “W”
(as in winter), for hot viscosity (measured at
212°
F/100°
C) the SAE class is given only as a
number.
The viscosity of an oil is, therefore, always the
same if it has the same number of an SAE class.
Oils with two viscosities are called multigrade oils;
oils with only one viscosity are termed single-
grade oils.
Single-grade oils can not be used in your engine.
The viscosity of the engine oil for your Porsche
has to be chosen according to the ambient tem-
perature given in the engine oil recommendation
table.
Technical Data
291
CapacitiesUse only fluids and fuels authorized by Porsche. Your authorized Porsche dealer will gladly advise you.
Your Porsche has been designed so that it is not necessary to mix any additives with oils or fuels.
Engine 911 Carrera, 911 Carrera 4: Oil change quantity without oil filter approx. 8.5 quarts / 8.0 liters
911 Carrera, 911 Carrera 4: Oil change quantity with oil filter approx. 8.7 quarts / 8.25 liters
911 Carrera S, 911 Carrera 4S: Oil change quantity without oil filter approx. 8.7 quarts / 8.25 liters
911 Carrera S, 911 Carrera 4S: Oil change quantity with oil filter approx. 9 quarts / 8.5 liters
Please observe the chapter “ENGINE OIL” on Page 201.
Coolant approx. 8.45 U.S. gallons / 32 liters
Manual transmission
and differential approx. 3.1 quarts / 2.9 liters transmission oil
Tiptronic S approx. 9.5 quarts / 9 liters ATF
Differential for Tiptronic S approx. 1.3 quarts / 1.2 liter
Fuel tank 911 Carrera, 911 Carrera S: approx. 16.9 U.S. gallons / 64 liters
911 Carrera 4, 911 Carrera 4S: approx. 17.7 U.S. gallons / 67 liters
Fuel quality Your engine is designed to provide optimum performance and fuel economy using
unleaded premium fuel with an octane rating of 98 RON (93 CLC or AKI).
Porsche therefore recommends the use of these fuels in your vehicle.
Porsche also recognizes that these fuels may not al ways be available. Be assured that your vehicle
will operate properly on unleaded premium fuels with octane numbers of at least 95 RON (90 CLC or AKI),
since the engine’s “Electronic Oktane™ knock contr ol” will adapt the ignition timing, if necessary.
Power steering approx. 1.35 quarts / 1.27 liter hydraulic fluid Pentosin CHF 11 S
® or Pentosin CHF 202
®
Brake fluid 0.48 quarts / 0.45 liters; use on
ly Original Porsche brake fluid.
Windshield washer approx. 2.6 quarts / 2,5 liters without headlight washer
approx. 6.3 quarts / 6 liters with headlight washer
