But I think the point is that there is no difference between plane, boat or car nitro - it's all the same stuff really.

OK, so it might have different nitro / oil contents, but what the hell? If it makes your engine go putterputterputter so you can rag the thing around the nearest road/carpark, who cares?

I'd say the type of fuel you use only really makes a diffference at race level.

If you're not sure, just buy the smallest bottle of a fuel that you can and give it a try - if you don't like it, don't buy a gallon. Simple.