In the latest Boat US magazine I see a add for Valvtect ethanol treatment. I have used Stabil for years, and it helps with ethanol, but it is not the fix all they want you to believe. The Valvtect stuff claims are much better than Stabil, and they give the test methods used in their claims. Has anyone tried this stuff, and if so does it work? Also, any one have any knowledge of the test methods listed? I can get non ethanol gas when I'm home, but out and about it can be very hard to find.