Durham to Louth,Lincs. 147 miles. Most of it motorway,never exceeding speed limits. Best I achieved was 51 mpg! According to Audi,diesels don't like cold weather ?? And as the turbo cuts in about 1800 revs,suggested I do my motorway driving at 60mph!! Can you believe that? Nothing wrong with the car in their eyes,pleasure to drive but very false and misleading gov figures for the mpg!!