Just thought i'd add my 2p, 143 TDI 48k, 58 plate, 6k since end of Jan 12, DIS shows average over 6k kmiles of 51.8, fill to fill - same station, same pump - 51.2 to 55.6mpg, don't always drive it like a hire car but do take it easy 60 -65 on A road and motorway commute.