My brotehr owns a 2003 a6 1.9tdi sport (manual -6 speed). Lovely car to look at and drive. Has a slight problem though, around town hes getting around 50-55 miles for Â£10 of diesel. Now I know diesel prices are high and climbing ATM, but that is poor consumption! The car is standard with no mods, it does have high mileage - around 190k mark but surely that shouldnt affect consumtion so bad! Anybody have any ideas as to why this might be?