Ive done maybe 14 - motorway 55mph bricking it all the way home, only to look inside and see what looks like loads left
10miles, maybe 20 miles. Feeling lucky punk?!
[size=78%]I started to run out on the M6 up a slight hill, got to the top and cut out completely, sign at top of hill said Corley services 1 mile, clicked into neutral, slipped into hard shoulder and cruised the whole way into the services and all the round to the station, got off the bike and a little jig![/size]
I once bungied 5 litres of fuel to my rack and tried it once and managed about 45 miles from the light coming on to actually running out of fuel.
Of course, when the light comes on you subconsciously don't rinse the throttle so much!