4.2 qt. (4 liter) It is recommended that you use 0w-30 synthetic oil, if it is not available then 5w-30 should be used.
5
Manual for 2003 Montero Sport with a 3.5 liter says 10.2 quarts.
about 9.2 quarts of changeable oil
The 2003 Audi S6 has 40 valves.
The 2003 Audi A6 has 30 valves.
The 2003 Audi S8 has 40 valves.
The 2003 Audi A4 has 20 valves.
The 2003 Audi A8 has 40 valves.
The 2003 Audi TT has 20 valves.
20 Billion
8.3
Quarts of what?