I just got back from an Outback trip covering 7817 Kms from Geelong to Darwin, including lots of gravel roads, Innaminca, Birdsville, Simpson Desert, Hay River Road as well as a lot of blacktop, so a good mix of road type and average speed.
We used a total of 1155 litres at a cost of $2274.56 which gives an average cost of $1.97 per litre. The most we paid was $2.25 at Innaminca, the least was Berry Springs near Darwin at $1.83. ($1.64 in Geelong when we got home)
Average consumption worked out to 14.8 L/100km, but this is the heaviest I've ever loaded the County for a trip and we also had a rooftop tent and roof rack which wouldn't help with aerodynamics.
All well worth it though.......it was a great trip. To make the most of the time we had, we drove the trip one way, then flew home. The County was trucked home at a cost of $1250 from Darwin to Melbourne.
https://www.aulro.com/afvb/images/im...2008/08/18.jpg

