Sta-bil has a good reputation. I've discovered that I'd rather avoid cleaning carburetors on all of my equipment every year, so switched to gasoline with no alcohol. It's more expensive, but vastly superior with regard to how my engines run, and it does not allow water to develop. Sta-bil is a "lay up" product by the way. If you're running it every day, you dont need it. When you put it away for the winter for example, remove what you can, fuel line or bowl, and hose in some WD 40.