The 1998 Audi A8 came equipped in 3.7 and 4.2L V8 engines. Changing the oil in this application will require safely lifting the vehicle in a shop or on jack stands. Their will be a bolt on the engine oil pan, accessible from under the car. Once this bolt is removed the used engine oil will drain out. Once drained the hole and the bolt should be cleaned, reoiled and then screwed back in. The oil filter can be removed by hand, or by a filter wrench. The OE oil filter element for both engines is the AC Delco #PF1711
http://wiki.answers.com/Q/How_do_you_change_the_front_axle_on_a_1998_Audi_A8"
8 quarts synthetic oil
In my manual for 3.0tdi 54 reg it says 9l of oil.
The 2010 Audi A8 has 32 valves.
The 2008 Audi A8 has a V8 engine.
The 2008 Audi A8 has 32 valves.
The 2009 Audi A8 has a V8 engine.
The 2014 Audi A8 has 24 valves.
The 2003 Audi A8 has a V8 engine.
The 2006 Audi A8 has 40 valves.
The 2011 Audi A8 has 32 valves.
The 2012 Audi A8 has 32 valves.