20/1. Hunter Valley to Canberra running e10 94 octane, cruise control set on 115km/h, air conditioning set at 20c. Best: 8.0, average 8.2l. That includes being stuck on Pennant Hills Road for 40 odd minutes in the heat yesterday. BTW i dont normally run e10 but it was so cheap compared to premium 98 i thought i would give it a try.