I also live in a humid area and have used Stabil for years. Over time I tried other additives, some mentioned previously, but found fuel system corrosion issues and more problems than advantages. I am also running non-ethanol gas which is easy to get at the pump nearby due being near a marina. Stabil. Non-e fuel is preferred by those with fishing boats and other water craft to keep moisture out of the fuel system, especially during long periods of non-use. I find the same advantage.