I live in Ohio and I just use sta-bill. The main thing is to fill the tank as full as you can get it. Keeps the air out of it. Here in Ohio they sell ethanol free gasoline at marinas. We also have Marathon gas stations in Ohio and you can find pure gas at some of those.Wow. I ride Oklahoma year round never stored a bike. Good Info anyhow. Do have a bad habit of tearing one of the two down during winter months.