When I get back from a trip if I don't think I will be using the MH for a few months this is what I do. After being home for about 2 of 3 weeks I take ou the MH for a drive and run the gen. then fill the gas tank. If its going to be a while put stable in before the gas. then in about 2 or 3 weeks Take it out for another drive and run gen and fill LP tank. But if it is hurricane season all bets are off. Keep everything full so I can get out of dodge. If I lived up north would keep LP full just in case of snow storm nocking out power. Hope this helps you on weather to fill or not.