For a fallout remover I always thoroughly wash the car first then rinse, then apply Purge, leave to dwell and rinse again. I let the likes of Articulate and snow foam take away most of the traffic film, dust etc first.
I know it’s labelled also as a wheel cleaner but I would very rarely use it on wheels.
I know it’s labelled also as a wheel cleaner but I would very rarely use it on wheels.