Just put 31.53 L of BP Ultimate 100 at $1.77/L into the G/S, after a 603 km round trip.
Must find a closer coffee shop.
Oz regular is crap - I need this stuff in the bikes and the car if they are to run properly. They go around 10% further on it, which reduces the extra cost a bit.
I was carrying 1L with me in a Primus bottle, and must have been pretty close to using it, but there is only one servo I trust to actually have the proper stuff.