Lowest ive had is 145 miles at the nurburgring. brimmed to empty in 10 laps isnt funny.
Highest i had was on a journey from plymouth to hannover in germany and i managed 485 miles to a tank. Cruise control @ 80mph with no traffic the entire way. was impressed with that as it was with 3 people and a full boot, and the octavia boot is twice the size of the golf.