There is a fix available for that... It's appearantly a problem with getting trapped air out of the tank. The size of the early 2005 vehicles filler opening down near the tank is appearantly too small. Late 2005 models seem to have this resolved already.
It seems that as a test you could take a little piece of wood along, and put it under the tire on the fill-opening side, so it sits a bit higher.
Anyway... there is a fix out from Ford, see
http://www.allfordmustangs.com/forum...86-post29.html or more specifically
http://www.allfordmustangs.com/forum...tml#post552486
They refer you to a change in fueltank. Other then that, I was als pointed to this page by someone:
05 Mustang Tank
I have no clue how someone in the UK could deal with the issue tho...
