Maybe, based off of the advice given to Byron, and the fact that you're starting your saws and equipment once a month in Winter and not having any issues, that is the answer. It's worth a try anyway. We're running the E gas in our mowers and weed eaters and I'm sure I've never bothered to run them in the Winter time. I'll try it this year!
<(((>< In tribute to Ben, Duck Hunter extraordinaire, and man's best friend.