22.5 mpg = 10.45 Liters/100K which is only a little better than what my Forester sucks when pulling a 1 tonne/2,000 lb boat.
Without the boat it averages around 31 (US)mpg. One difference might be that the maximum speed limit in most parts of AU is 110 kph/~68 mph.
If you're not driving at 70-80 mph a lot then check tyre pressures and wheel alignment, and maybe buy a different brand of gasoline. Also configure the centre display to show real time fuel consumption. The 'needle' should be in the low (-) half of the range most of the time, dropping to 0 on declines. If it is mostly in the high part then your right foot may need recalibrating.
Without the boat it averages around 31 (US)mpg. One difference might be that the maximum speed limit in most parts of AU is 110 kph/~68 mph.
If you're not driving at 70-80 mph a lot then check tyre pressures and wheel alignment, and maybe buy a different brand of gasoline. Also configure the centre display to show real time fuel consumption. The 'needle' should be in the low (-) half of the range most of the time, dropping to 0 on declines. If it is mostly in the high part then your right foot may need recalibrating.