It's metric down here👍.
Our open road speed limit is mostly 100kph with a few 110 zones in some states. The freeway is 110 in most states. Here in Victoriastan, the highway patrol don't have much of a sense of humour. 80 mph would have your bike impounded and you walking for 3 months. It's not the fun place it used to be. Other states are less jackboot like. Tasmania in particular. The boys in blue realise the importance of motorcycle tourism.🙂
Today sitting on a real 112kph (the Speedo was reading 117. But it's really a playschool clock.) I was putting 13 litres in every 300klms. So a safe 340. I recall at one stop, the countdown trip meter showed about 25klm of range and I drip fed 12.3 litres into the tank to fill it to the brim. So another 35-40 klms real range.
That's PFG in my eyes. That's accurate with a margin of safety.