IF you live in an area where they use salt on the roads, make sure the roads are dry before you take it out. In fact, it's best to wait for a mild spell, after it's rained (to wash away a lot of the salt), then go out when the roads are dry. Otherwise the salt on the undercarriage will quickly start turning all of the steel to a nice rust color.
I sometimes take our Class A out during the winter for a drive, but ONLY if I can find a day which meets the above conditions....AND I'm not working! LOL And yes, WITH the generator running & the heat strips on too!
~Rick