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The 2003 Audi A6 has 30 valves.
The 2003 Audi A4 has a drag coefficient of .30 Cd.
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.
The 2002 Audi A6 has 30 valves.
The 2002 Audi S4 has 30 valves.
The 2001 Audi A6 has 30 valves.
The 2004 Audi A6 has 30 valves.
The 2001 Audi S4 has 30 valves.
The 2004 Audi A4 has a drag coefficient of .30 Cd.
The 2005 Audi A4 has a drag coefficient of .30 Cd.
The 2005 Audi S4 has a drag coefficient of .30 Cd.
The 2004 Audi S4 has a drag coefficient of .30 Cd.