I was under the impression that Sta-bil was used to keep the ethanol from breaking down. If you expect the gasoline to sit for a long period (more than 30 days) you add it to the gas.I read an article that stated it was good practice to add Sta-bil (the marine kind (blue) ) to every tank of gas. My question is if this is good practice when using gasoline that already contains ethanol at the pump?
I used to have a cabin in the woods. I didn't use the generator very often but if I didn't put stabil at double the normal dosage in thye gas, the gennie would never start when I needed it.Personally I think Sta-bil is "Snake-Oil" and does little to nothing to preserve gasoline. This is just my opinion, but I do own a small engine repair shop and repair 100s of engines a year. Many with gummed carbs, lots where Sta-bil was used.
Easy, actually.There is a newer formula of Stabil that is designed for the ethanol containing gas. By the way the ethanol is the biggest problem so it more the reason to use it, not the excuse to not use it. I don't really have any experience with it. I don't know of any way to prevent air from mixing with gas as most fuel tanks are vented.