haha funny this should be mentioned, and I assume the M is the same...
three days ago i ran it down to 1, then to ---, then i drove it for about 3 miles before i managed to fill..
the funny thing was i actually drove past a petrol station with it on --- because i didnt like the brand of the fuel... i'd never have done that 6 months ago =)
so should the new question be... has anyone ran a zed flat ? =D