Having previously enjoyed an Audi A4 2.7TDI (190BHP) Multitronic and returned an average fuel consumption over 25,000 miles of 43.5 MPG, which pretty much matched the manufacturers data, I recently changed to an A6 Avant 2.7TDI (190) Le Mans Edition Multitronic. The manufacturer fuel data indicates 38.8 MPG for Combined Cycle. Over the past 3 months and 8,000 miles (total of 13,000 miles, as I bought it as a demonstrator with 5,000 miles on the clock), I am achieving only 32.5 MPG. My journeys are 90% Motorway and long distance and I do not drive the car hard, typically cruising at 75 -78mph (as I did in the A4). Whilst clearly I expect the consumption to be worse than the A4 due to the A6's larger size and weight, I am still disappointed in what I am achieving. Before I contact my local supplier (Sinclair Audi of Bridgend which is by the way a fantastic dealer and always has looked after me superbly) can you comment, or make any suggestions please, should I expect better?