Need advise to removing oak tree stains
I'm working on a 2012 Buick that has been repainted after hail damage. Paint job was 4 months ago, I clayed the car and still see stains, did a test spot with meguiars MG 9 swirl remover with a ccs yellow cutting foam pad, Polisher is PC. After my test spot still can see the stain. Any suggestions?