I don't know the nominal size of the tank - I lost my owner's manual long ago. I _do_ know (from my credit card statements) that I put in 80 litres on 21 November at a cost of GBP56.80 - for you 'Muricans that's 21.13 gallons for $94.29, or $4.46/gallon. -- Phil Payne UK Audi [ur-]quattro Owners Club