Just done a 750 mile trip to the lake district over last 4 days. Used the brim method. Returned 36 mpg. Mostly M25/M1/M6 and some local stuff with motorway actually being kind so maybe a little above 70 mph in places but 70 most of the way and most of the way back so fuel getting a little better.

Engine feels a little looser now so as mileage goes on mpg goes up a little.

Bump. As no-one noticed i'd linked to it in the other thread.