As we get towards the city the highway becomes a limited access freeway and everyone once again starts obeying the speed limits. Maybe it is those speed cameras. We stop for fuel at a station in the city. Super is a leaded gasoline. They use Propane in all the taxi cabs as well as many civilian vehicles.
Propane is almost one third the cost of petrol.
Prices are in AU Dollars per liter. They seem to work very well in medium to light traffic. It is so nice to not have to stop at intersections. You can drive for a long time and never see a traffic light. Makes me wonder why we don't use them more.