Hi everyone,
We work for Gold Eagle Co (makers of STA-BIL®) and wanted to help clear up some confusion. The comments about keeping the fuel system full are correct. The best practice when storing equipment is to fill the tank about 95% full, add a high quality fuel stabilizer, and run the engine for a few minutes to ensure the entire fuel system is treated. It is almost impossible to completely drain the tank. Even the smallest amounts of gas will gum up and can clog parts of the fuel system. Also, the more open space you leave in the tank the more susceptible the metal components of the fuel system are to rust & corrosion from condensation.
Please feel free to reach out if you have any questions.
Have a great day!