Here is a question, the manual states that the tank capacity is 55L in the A3 Quattro, however I usually run down to 0-20 miles using the Range readout. However when filling up ive never been able to get more than 50L into the tank. Now I fully understand that the range read out isn't accurate however it seam to me to be way out. So the question is : What's the highest amount of diesel you have squeezed into your tank ? p.s the norm for me is 415-420 miles per tank, running on Shell Ultima.