Just drove down from Airleys Beach in QLD down to Melbourne (2500km) and it took 3 tanks - 1st fill up was 750km, 2nd was 820km and 3rd was 780km.. This was sitting at 110km/hr most of the way however rain slowed me down to 50km/hr for about 3 hours on friday nite. '96 TE manual magna - no engine mods..