Drive everywhere at 40ks you'll get 1000ks and more.
If Holden can claim they get from Melb to Syd on one tank of fuel in a car that's rated at 9.3 lt/100 and has a 73 lt tank then anything is possible. Bragging rights are just like commercials, never let the entire truth get in the way just incase you can be proven wrong.
You know back in the late 70's when the latest CM valiant was released Chrysler claimed it could go from Melb to Syd on one tank of fuel. That was 30 odd years ago with a 3 speed auto and carby intake, pretty lame by todays standards to make a claim that was made 30years ago, I wouldnt be bragging.