Since last year, all of the gas sold here has ethanol in it. (yes, even premium) So, I put gas treatment in at every fill up; no need to do anything special for Winter.
The truck hasn't been driven for a couple of weeks now and probably won't be driven until February. I will charge the battery at least once a month. It's in a dry, but unheated garage.
Last February, when I started it up, it ran a bit rough for a minute or so but it quickly settled down.
