2005 PORSCHE BOXSTER oil capacities

Maintenance, Car Care
179
Refuelling Fuel tank capacity is listed under “Capacities”.
Porsche does not recommend the use of fuel ad-
ditives.
Fuel is highly flammable and harmful to
health.
fPlease observe the chapter “CAPACITIES” on
Page 266.1.Important: Stop the engine and switch off the
ignition.
2. Slowly unscrew the tank cap.
Hang the tank cap on the plastic strap of the
filler flap.
3. Insert fuel-hose nozzle fully into the filler neck
with the handle of the fuel-hose nozzle facing
down.
4. Do not add further fuel once the correctly ope-
rated automatic fuel-hose nozzle has switched
off.
Fuel could spray or could run over in warm
temperatures.
5. Replace the tank cap immediately after
refuelling and turn it until you hear it and feel it
engage.
If you lose the tank cap, you must replace it
only with an original part to reduce the pos-
sibility of a fire in the event of a collision.
Note
The oil level is automatically measured during
refuelling.
fPlease observe the chapter “OIL DISPLAY AND
MEASUREMENT OF THE ENGINE OIL LEVEL”
on Page 97.

190
Maintenance, Car Care
Air Filter The air filter is on the left-hand side of the engine
compartment.
A dirty air filter not only reduces engine perfor-
mance, but can lead to premature engine wear.
Regular filter replacement is part of the routine
maintenance service.
fIn dusty conditions, check the filter element
more frequently and replace if necessary. Combination filterThe fresh air passing through the combination
filter into the passenger compartment is virtually
free of dust, pollen, and unpleasant odours.
fIf the outside air is polluted by exhaust fumes,
press the circulating-air button.
A dirty filter can be the cause of reduced air
throughput:
fHave the filter replaced by an authorized
Porsche dealer.
Regular filter replacement is part of servicing.
Automatic Transmission Fluid The torque converter and the transmission are lu-
bricated with Automatic Transmission Fluid (ATF).
The final drive requires transmission oil.
fPlease observe the chapter “CAPACITIES” on
Page 266.
Do not tow the car or run the engine without ATF
in the transmission. The automatic transmission
may be damaged by even a tiny speck of dirt, only
a clean funnel or spout must be used when adding
AT F.
The ATF and transmission oil has to be checked
and changed at the intervals listed in your Mainte-
nance Schedule.
We recommend that you have the ATF and trans-
mission oil changed at your Porsche dealer, who
has the required lubricants and the necessary fil-
ling equipment.
If you suspect an oil leak in the transmission, have
your authorized Porsche dealer check it out imme-
diately.
Manual Transmission Oil The transmission oil has to be checked and chan-
ged at the intervals listed in your Maintenance
Schedule.
fPlease observe the chapter “CAPACITIES” on
Page 266.
We recommend that you have the transmission oil
changed at your Porsche dealer, who has the re-
quired lubricants and the necessary filling equip-
ment.
If you suspect an oil leak in the transmission, have
your authorized Porsche dealer check it out imme-
diately.

266
Vehicle Identification, Technical Data
Capacities Use 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 without oil filter approx. 1.98 U.S.gallons/7.5liters
Oil change quantity with oil filter approx. 2.05 U.S.gallons/7.75 liters
Please observe the chapter “ENGINE OIL RECOMMENDATION” on Page 174.
Coolant Boxster
Manual transmission: approx. 5.86 U.S. gallons/22.2 liters
Tiptronic S: approx. 6.37 U.S. gallons/24.1 liters
Boxster S
Manual transmission: approx. 5.94 U.S. gallons/22.5 liters
Tiptronic S: approx. 6.42 U.S. gallons/24.3 liters
Manual transmission and differential 5-speed: approx. 2.4 quarts/2.25 liters, 6-speed: approx. 3 quarts/2.8 liters
Tiptronic Sapprox. 2.51 U.S. gallons/9.5 liters
Differential with Tiptronic Sapprox. 0.21 U.S. gallons/0.8 liters
Power steeringapprox. 1.1 quarts/1 liter hydraulic fluid Pentosin CHF 11 S
®
Brake fluidapprox. 0.4 quarts/0.39 liters; use only Original Porsche brake fluid
Windshield washerapprox. 0.66 U.S. gallons/2.5 liters without headlight washer
approx. 1.59 U.S. gallons/6 liters with headlight washer
Fuel tankRefill volume approx. 16.9 U.S. gallons/64 liters, including approx. 2.6 U.S.gallons/10 liters reserve.
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.