LOL.. This always baffles me... when my mum borrows my lupo...she manages to get 60mpg.. When i however try to recreate this... Get nowhere close.... Hahaha..... Heavy footage.... But the lupo loves it... still get about 40mpg. So its still economical. About the clicking off, Mine does that, but i no that if i have a nearly empty tank and it clicks at £5... no where near, So.... Give it a little giggle and hey presto, the it lets me put a tank in... However the clicking can b very annoying when it happens more then once and even stops me from puttin more in. I found a little trick to gettin the most out of the pump... Due to the lupos smallness... You can stretch the hose to the other side.... and the fuel that rests in the pipe.... come out to give u an extra £1 worth. Heckers