I have a 2007 Leon FR TFSI DSG with 57k miles on the clock. Standard apart from Straight through exhaust from Cat back, and Cold air intake. I put £20 of tesco momentum in the other day, a few miles after it hit 0 miles on the dash (same day I dropped the oil and changed filter). I have now done 40 miles and the display is telling me I have 10 miles left!! And I've been driving very conservatively after the last fill up - even if it is urban, most of my journeys take dual carriage ways and ring roads. So, 50 miles to £20 worth of fuel - £134.9 a litre so 14.825 Litres or roughly 3.32 Gallons. 50 miles using 3.32 gallons is 15mpg! So even the dash reading of 17.5mpg is optimistic!! What are the rest of you getting?