My v8 generally gets around 300-320km out of 70litres of LPG (21.5-23l/100km) city running. I rarely run it on on petrol as I only have the small sub-tank and I can see the needle move as I drive.
I recently took a 2100km trip to SA and averaged 18.1l/100km.
The last trip to SA in our Td5 Disco we got 9.6l/100km, around 900km per tank.
But around town we are lucky to get 750km per tank.
Ian
