I got no clue how much my car gets on a tank.. But brand new it got 23 mpg... with the DASC and the age I'm gessing 20?
2000 Audi A8 SWB Silver/Black
1992 BMW 525iT/5 White/Blue [MPars, HIDs, cargo net]
1989 525i [scrapped]
1995 BMW 318i DASC [sold]