i managed 360+ miles on a tank when i drove down to woolacombe, averaged 40.1 on the way there over 107 odd miles being sensible, enjoying the same drive home, 36.9 but to be fair i got home 35ish minutes earlier so it was worth it to me.
sucks round town, usually low 20's on short journeys on longer but still under 10 miles its mid to high twenties.
if we just drive round town, 230 -260 miles per tank mixed driving
thats just with air filter, and tip