Just sold an '02 X5 4.4i Sport - that would do 22mpg+ on motorway. Best to decide on speed, either 60, 65 or 70mph and then use cruise control. Have done this a lot on trips to west country. If go above 70 then you'll strat eating into milage, at 60 to 70 I can get close to 500miles on tank, if add ...

If you are in the Basingstoke area, please try Hartley Wintney Garages, they have been looking after my X5 which has a problem with the self-levelling suspension.

They are a capable independent outfit.

Peter