Nitromethane is mostly a USA only kind of thing anyway. Everyone outside of the USA is running zero nitro or model diesel fuel or gasoline (petrol) of course.
Here in Australia most of the guys run 5 to 10% nitro in their glow fuel. At least at the club where I fly that is the case. We've got some New Zealand guys over here and they said the same thing about nitro use there.
Model diesel fuel (1/3rd kerosene, 1/3rd ether, 1/3rd castor oil) is quite rare here, and prohibitively expensive. That wasn't the case in the 80s and before but now ether is very difficult to purchase. Petrol (gasoline) models are quite popular but most guys run either 2 stroke or 4 stroke models with nitro quite common.