Antoniusz Wiacek
Antoniusz Wiacek voted up Didge Doo's answer

In Sydney today it's selling for $A1.44/litre and, at 3.78541 litres per US gallon, that works out at $A5.45/gallon. But it's not pure gasoline. That's the price after it's been watered down by 10% ethanol, which makes it substantially cheaper.

That's about $US3.75/gallon.