394 Tire Pressure and Technical Data
Capacities
Use 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.
Engine 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 liters)
Reference indication is the level on the oil dipstick.
Please observe the chapter “ENGINE OIL LEVEL” on Page 277.
Coolant, depending on equipment level approx. 4.8 – 5.5 U.S. gallons (18 – 21 liters)
Automatic transmission with torque converter approx. 9.51 quarts 9.0 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 U.S. gallons (12 liters) reserve
Fuel quality
The engine is designed to provide optimum performance and fuel consumption if unleaded premium 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 Octane™ knock control“ automatically adapts the ignition timing.
Power steering approx. 1.6 quarts (1.5 liters) Pentosin CHF 11 S
®
or Pentosin CHF 202
®
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)
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