removing brake dust film
Annoyingly my car has gained a scratch down the side, I believe from a bush or tree on a country lane. From past experience it will polish out no problem, but I would like to go over the car thoroughly.
One problem I have is gradualy despite washing and polishing, over time a film has built up over the car probably from the brakes. I have tried Autoglym tar remover and it got some but not all off. Can anyone recommend something? My first thoughts are T-Cut but I am hesitant to use the stuff. The car is Alfa red so not metallic or pearlesant.
Your thoughts appreciated.