Has anyone ever heard of Aspen fuel? It was posted by a prominent member of another forum. I have no idea how much this stuff costs but apparently it is available some places in Canada and all over the place in Europe. I'm sure that it is not cheap but it seems that it would be a great fuel for saws, especially older collectible ones as it doesn't attack soft components such as fuel line, diaphrams, etc. They claim that their fuel doesn't degrade over time and can safely be stored in saws for extended periods without damage to the saw.
Aspen Website
Data Sheet
Aspen Website
Data Sheet
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