thanks, its a F25 2l 8speed auto. diesel. The book said 50 + mpg and jeremy clarksons review on Top Gear said that this newer model x3 had great fuel economy. I have filled it up and reset comp done a trip from Dundee to Aberdeen at 70mph (on cruise control) and I got 34pmg. I filled up again reset ...

hi I am new to forums someone suggested I give this ago! I have just bought a x3, i was told it would give good fuel economy, and was talked into the automatic diesel for even better economy. However I am struggling to get more than 31 mpg on the motorway, on cruise control sitting at 60mph ...