about £50, but i could put in £90, mainly because if i fill it right up it comes out of the top of the new sender grrrrrr! (grrrrr is me making angry noises by the way, because its a crappy job to have to do, but to have to do it twice is really crappy!)
got £55 in last time and that was full from reserve - mind you I have no way of knowing how much there is left when I go into the red and I'm not about to risk running out
Ginsters pasty and a king size Snickers will usually be enough for me - sometimes I'll have to have a packet of cheese and onion crisps before I'm totally full though. So unless I'm buying at a motorway service station, probably less than three quid. Dunno about the bus - fuel gauge is broken.