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Maintenance, Car Care
Engine Oil RecommendationPorsche recommends  .
The right oil for your vehicle.1) Generally, you can find details of the 
manufacturer approvals on the oil containers or as 
a notice displayed by the retailer.
The current approval status is also available from 
your Porsche partner.2) SAE viscosity class - Example: SAE 0W - 40 
Specification 0W = Viscosity specification for 
low temperatures (winter).
Specification 40 = Viscosity specification for 
high temperatures.3) For all temperature ranges.4) For the temperature range over --13 °F (--25 °C).Always observe the following points:
– Use engine oils approved by Porsche only. This 
is a precondition for optimum and problem-free 
operation of your vehicle.
– Regular oil changes are part of servicing.
It is important that the service intervals, 
particularly the oil change intervals, are 
observed in accordance with the specifications 
in the “Maintenance” booklet.
– Oils approved by Porsche can be mixed with 
each other.
– Porsche engines are designed so that no oil 
additives may be used.
– A label is located in the engine compartment, 
which provides you with information on suitable 
oil for your engine.
Your Porsche partner will be pleased to advise 
you.
Oil changeThe engine oil has to be changed regularly at the 
intervals listed in your Maintenance Schedule. 
fPlease see the chapter “CAPACITIES” on 
Page 290.
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.  Complies with 
approval
1)
Viscosity class
2)
Porsche A40 SAE 0W - 40
3)
SAE 5W - 40
4)
SAE 5W - 50
4) 
     
        
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Maintenance, Car Care
211
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. 
     
        
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290
Technical Data
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. 
EngineOil change quantity with oil filter approx. 7.9 quarts / 7.5 liters
Please see the chapter “ENGINE OIL” on Page 208.
Coolantapprox. 7.63 - 8.32 U.S. gallons / 28.9 - 31.5 liters 
Manual transmission 
and differential
approx. 3.17 quarts / 3.0 liters transmission oil Mobilube PTX Formula A (SAE 75W-90) GL 4.5
Porsche Doppelkupplung 
Wheel setapprox. 3.12 quarts / 2.95 liters ATF transmission oil Mobilube PTX Formula A (SAE 75W-90) GL 4.5
Porsche Doppelkupplung 
Clutch/hydraulic fluidapprox. 5.49 quarts / 5.2 liters Pentosin Gear Oil FFL 3
Fuel tank  911 Carrera, 911 Carrera S: approx. 16.9 U.S. gallons / 64 liters
911 Carrera 4, 911 Carrera 4S, 911 Targa 4, 911 Targa 4S: approx. 17.7 U.S. gallons / 67 liters 
Fuel qualityYour 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 always 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 control” will adapt the ignition timing, if necessary.
Power steeringapprox. 1.35 quarts / 1.27 liters hydraulic fluid Pentosin CHF 11 S 
® or Pentosin CHF 202 
® 
Brake fluid0.48 quarts / 0.45 liters; use only Original Porsche brake fluid 
Windshield washerapprox. 6.3 quarts / 6 liters with headlight washer