The following materials may damage the vehicle finishes if left on painted surfaces:
| • | Calcium chloride and other salts | 
| • | Ice melting agents | 
| • | Road oil and tar | 
| • | Tree sap | 
| • | Bird droppings | 
| • | Chemicals from industrial chimneys | 
Use cleaners that are designated safe for painted surfaces for the removal of these materials.