Test all cleaners or solvents on the paint prior to usage. I like to use the seam underneath the rocker panels. Apply a little cleaner or solvent to a cloth and rub the seam. If you do get color on the rag, then you may wish to consider another solvent. The eraser must be unused and flat on top.
Paint chips come in two flavors.
The worst case has exposed the bare metal, while the less severe has left the original primer intact. Clean the area thoroughly with the or P21S or Wurth citrus cleaner. If there is rust on the exposed metal, clean off with the pencil eraser. Use a toothpick to gently probe the area and make sure that the edges of the chip are secure and not waiting to fall off and destroy your work. This is an optional step .