Is it possible its not paint, but rusting brake dust stuck to the paint. I had a white civic that I thought was rusting behind the wheels , but it turned out it was hot metallic brake dust sticking to the paint and then starting to rustGot some road centerline paint on a 2014 Honda CRV. I removed what I could using the "thumb-nail" method. What is the best way to remove the rest of it? Thanks in advance,
Tim