Porsche 911 CARRERA - 2003 Manual page 250

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.
Engine
Oil change quantity without oil filter approx. 8.5 quarts/8.0 liters
Oil change quantity with oil filter approx. 8.7 quarts/8.25 liters
Reference indication is the level on the oil dipstick. Also refer to the section "Engine Oils".
Coolant
approx. 5.95 U.S. gallons/22.5 liters
Manual transmission
and differential
approx. 2.85 quarts/2.7 liters transmission oil
Tiptronic 5 approx. 9.51 quarts/9.0 liters ATF
Differential with Tiptronic 5
approx. 1.32 quarts/1.25 liters transmission oil
Fuel tank, refill volume 911 Carrera: approx. 16.9 U.S. gallons/64 liters, 911 Carrera 4, Carrera 45: approx. 16.6 U.S. gallons/
63 liters, including approx. 2.6 U.S. galions/l0 liters reserve
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 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 OktaneTM knock control" will adapt the ignition timing, if necessary.
Power steering
approx. 1.3 quarts/1.27
liter hydraulic fluid Pentosin CHF 11 S@
Brake fluid Use only Original Porsche brake fluid.
Windshield washer
approx. 3.17 quarts/3 liters without headlight washer, approx. 6.02 quarts/5.7 liters with headlight washer
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Technical Data