[header] How to wash your car in the wintertime [title] Use a professional car wash with handheld pressure wands. [step] While you can wash your car at home, it is best to use a professional car wash. Make sure you choose a car wash that has handheld pressure wands. 
This will help you remove corrosive agents from your car's body and undercarriage. [title] Start at the top and work your way down.