[Tilted Irish Kilt]

Lonesome in Massachussets :" The U.S. Gallon is 3.78541 liters, the U.S. dollar is 1.38 AU dollars, you are using a bigger gallon and smaller dollar.
Price is $3.81/GAL is U.S. dollars and gallons."

The article states ; "in Australia".. "in AUSTRALIA
I believe they used the imperial gallon there, the metric system, and pay per liter.
The US dollar is more valuable than the AU dollar.
We seems to have some confusion regarding :
#1- the monetary exchange rate of US to AU
#2 -the size of the Australian imperial gallon in liters

[Lonesome in Massachussets]

I got it right.