What Connecticut puts on winter roads, how salt and magnesium chloride brine attack the underbody, paint, wheels, glass and carpet, how toWhat Connecticut puts on winter roads, how salt and magnesium chloride brine attack the underbody, paint, wheels, glass and carpet, how to protect a car before winter, how often to wash salt off, warning signs, and a spring cleanup plan. protect a car before winter, how often to wash salt off, warning signs, and a spring cleanup plan.