well then all you can do is haggle with him. Things do take time, and again i assert that if it was your own house, no-one would be giving you compensation for the awkwardness of it all.
Out of interest, how far away did you friends live? £15 extra per day for petrol seems loads (for example in my smart car that would be about 200 miles PER DAY!) However, as i also said before, you need to add up all these extra expenses you had and work out how much they are and expect that amount. Make sure you are accurate. For example, if you really did spend £15 extra a day on petrol, provide reciepts. As for extra for the hassle, a certain amount of inconvenience comes with life i'm afraid :)
Regards to council tax, you pay it wherever you live, so unless your friends charged you for part of the council tax while you were there and you can prove it by having a reciept from them, i don't think you can ask the landlord to pay