On the thread "what fuel do you use" I inquired about the avalibility of aspen in the US. Someone said they e-mailed aspen ;and said it was not available here yet. Then There was a link to "50fuel" which is kind of the same idea.I was just wandering if anyone on here had any first hand experience with this stuff. It looks to be about $7 a gallon in quart size containers.If it is actually a good product that would not be a bad idea for occasional users. You could subtract the cost of mixing oil off the top, not alot but still a couple bucks. Thanks for any info on this product. Chub