it depends on when you fill up as well fuel is denser when its cooler
you lot who get low reading must drive like complete tw*ts!!
im getting about 52ish at the minute, but im driving to get more mpg at the minute, normally get about 46mpg easy, and thats 10ish mile journeys some stop and start.
how you manage to average below 30 on a run is beyond me, ive had my car in single figures nailing it from 0-80ish, but thats just instant then it climbs back up, do you drive everywhere in 1st sam?!