Great Question! Originally I took mine to a regular service station. They claimed to be experts. They gave up soon after. I wound up taking it to a mechanic, several hundred dollars later I had an oil change,(synthetic), filter (eleven quarts), and drove home.
$300.00
911 3.2 1988
A 2001 Porsche 911 2 Carrera requires 9 quarts/8.5 liters of oil without a oil filter change. Including an oil filter change it will require 9.3 quarts/8.7 liters.
Take it to a certified Porsche dealer and let the experts service your precision crafted engine.
Porsche recommends using Mobile 1 oil, specifically 0W-40.
The 2003 911 C4S takes about 9L of Ow40.
Mobil 1
Porsche recommends Mobil 1 Synthetic 0w-40.
A 1979 Porsche 911 SC has an oil capacity of 8 quarts if completely drained. This is about 7.57 liters.
The oil capacity of a 1978 Porsche 911 is approximately 9 quarts (or about 8.5 liters) when including the oil filter. It's important to use the correct oil type and check the owner's manual for specific recommendations to ensure optimal performance.
Porsche recommends the use of Mobil 1 synthetic 0-40 weight.
All variants of 1981 Porche 911's are listed as taking 10 ltrs including the oil filter.