In Canada the gasoline additives are even worst in a stove, to the point that Coleman now recommends that Canadian gasoline not be used in there stoves at all.

We had a good discussion on this topic a couple of years ago located here.

Last summer we met a nice British couple in Jasper AB who had no idea that Canadian gasoline would gum up there MSR multifuel stove. They were planning on taking some remote hikes so a functional/trouble free stove was very important to them.

Mike