Sooner or later (if it hasn't already happened) someone is going to lose their life due to ethanol related fuel problems. If at all possible, don't use it. Here in Oregon it can be legally sold at Marina's and airports and a few specialty fuel suppliers. It costs about 50¢ to 75¢ more per gallon but it's lots cheaper than fixing ethanol related problems at $75/hr plus parts! I know lots of guys who are having major problems with their dirt bikes and other small engines that may not get run regularly. Most are getting wise and finding non-ethanol fuel supplies. It's even worse in a marine environment. My local boat mechanic has had a huge increase in business all because of fuel problems. From what I have been able to glean from him and his customers it looks like anything more than 30 days will really be pushing your luck with ethanol. If you have more than 5% water in your fuel tank, the ethanol will phase separate within a matter of days and that is the source of the gelatinous substance that people are finding in their fuel systems. Some of the additives appear to help a bit but nothing will put phase separated fuel back together and they won't help if you already have much water in your tank. Running the tank dry at the end of each outing may help as well, but you still don't get all the fuel out of the float bowl. The best thing is to avoid using it if you possibly can. You never know when your life (or at least your boat) may depend on your motor running when you really need it. I'll keep clear of the discussion of the politics behind this mess, it sickens me. Well that's my 2¢ worth. Mark Dvorscak M23 Faith