When I worked for the village DPW we used seafoam to treat the gas in all our small engines. We had two parks and two cemeteries to mow May - Oct., Our mowers and weed eaters were stored away for winter after that and not used again until the following May. Never a problem with them starting right up again come spring. Just charge the batteries, fire them up and away they'd go. It has worked just as well for me at home in my lawn tractors, snow blowers, weed eaters and chain saws ever since.
