The only issue I could see it being reasonable to have them up is if there was a heavy ice storm, or ice was allowed to build up on the hood. It would limit any strain on the plastic gears. However, in those cases you would just take a few min to let the car warm up and then clear it off. And you shouldn't be driving with any snow or ice build up on your car anyway, its against the law in most, if not all, states.
Last edited by V; 11-22-2015 at 08:07 AM.
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