If you have a car with oil based paint, it is important to remove any overspray. Overspray can cause the paint to become brittle and crack. It can also cause the paint to peel off in large areas. To remove overspray from a car, you will need to use a variety of methods. Some people use a vacuum cleaner and bucket, while others use a spray bottle and a cloth. The most effective way to remove overspray is to use multiple methods and wait for the best results.