I have an alpine white car and yun mga blackheads (Blemishes) yun nakakainis. What i do is clay it first and then if that doesn't work, i use bug and tar remover that i use very carefully with a soft sponge applicator, and just enough to get rid of the blackheads na di natangal ng clay. After that, I glaze the paint, wipe dry, then top it with wax.