I'll stick to Seafoam*, un-limited shelf life after opening the can. & can keep fuel stabilized for 2 years, not to mention the benefits for fuel systems..
Good choice exotion. These companies that manufacture and sell fuel treatment products are using deceptive marketing tactics to convince you that they have a product which will prevent and fix all ethanol-related fuel problems No such miracle product exists! Gas contains hundreds of chemicals and compounds - All added by the fuel companies to provide the best quality of gas possible. Gasoline sold to the public contains stabilizers, preservatives, dyes, oxygenators, octane enhancers and much more, just like the 2 cycle oil you buy already contain stabilizers so why add more.