I've been keeping close records of the ST recently for MPG. Never done this before this accurately but over the last 1120 miles I have averaged 31.43 mpg. My best MPG was 34.66 and worse 28.33. The interesting thing is, although this doesnt seem that bad, it still really eats ££. Day to day driving I get about 29.3 MPG. To put that in perspective, I get 221 miles from 34.2 litres of fuel, at the moment thats about 7 miles per £ of fuel lol.