Today we drove from Toowoomba to Dubbo. This was the longest section (over 700km), but it took a comfortable nine and a half hours including breaks every two hours, and a decent pause for lunch (at Narrabri).
The rig performed well, although fuel consumption was a bit high (17lit/100km). Having said this, running on lpg meant that virtual fuel consumption was half that, as unleaded was consistently twice the price. The most expensive lpg was 87.9 (Narrabri) and the cheapest 78.9 (Goondiwindi). A consumption of 8.5lit/100km whilst towing over a tonne is not to be sneezed at. We used no unleaded at all, with gas available all along the route.