How to Deal with Black Marks on a White Car?

[KadenRose]

Soap solution. For minor scratches, gently wipe or lightly sand the marks, then apply wax. You can first gently wipe or lightly sand the scratched area, then spray or apply white paint. Visit an auto repair shop for detailing.

[NovaMarie]

There are some black marks on the body of my white car, which are obviously stains caused by brake dust or tree sap. When cleaning it myself, I first rinse the surface to ensure there are no sand particles that could scratch the paint. Then, I gently rub the black marks with a clay bar, using a neutral car shampoo to avoid scratches. If the stains are stubborn, try a professional iron remover or clay bar—it usually takes just a few minutes to work. After washing, apply a layer of car wax for protection to prevent future stain buildup. I make it a habit to wash my car regularly and avoid parking under trees or near pollution sources, as these black marks can penetrate the paint and even cause rust if left untreated for too long. Doing it myself is quite convenient—a set of tools bought online costs just a few dozen bucks, and spending a little time can make the car look brand new again.