winter time is winter mode for me. drive it dirty. my car's exterior is disgusting right now. if anything ill take it to the car wash and use a power washer on it but not squeeze the handle since my paint is already chipping in some spots and dont want to rip it off.. gets most of the salt off. if i cared more id take the time to hand wash it and just not be able to feel my hands for a few minutes..but the car wash does fine in the winter for me.