Kestas
Staff member
I think washing a car in the winter does little to prevent it from rusting. All it does is make the car look clean. It helps a little, but I think it's more of a placebo for people to think they're going to significantly stave off corrosion from their vehicle. At most you'll enjoy a few days respite from the salt (assuming dry roads) until the next snowfall. Rarely does rust form on the flat outer panels of a car, yet that is what we wash. Rust forms from the corners, crevices, laps, joints, and seams of a vehicle. Just the act of driving mists up the salty brine from the road and drives it deep into the recesses and cavities of a car (as does the recycled salty wash water at a car wash facility). It is hard to keep these areas clean, dry, and salt-free.