I park outside. My car has to endure rain or snow alone. I am sorry to my car for not parking in the basement parking lot of the apartment. One winter when it snowed a lot, I couldn't clean the snow right away from the car, so the snow turned into ice. I had a hard time using tools to remove hardened snow from the car for an hour. If CLEANSHIELD were with me, I wouldn't have had a hard time. I will seriously consider buying this product. Before the next winter comes.