After the rain, should you wash your car?  Absolutely!  The rain brings pollutants and contaminants that damage your car's finish.  It can leave your car's surface with not only hard to remove water spots, but over time, can create issues from surface defects to rust.  Snow, sleet and salt also beat up the car's surface.  After the rain, we recommend Blue Mist final Wipe.  To help remove the salt we suggest Zip Mist & Wipe.