I never worked in a paint or detail shop but ya need to know what your trying to clean up I think. With today's finishes things have changed a bit.. Are you trying to bring back the clear coat look? You trying to clean the paint..Wash and wax is no longer the easy answer. Even some dish detergents can ruin a Finish I have been told. Only my thoughts but stay away from the acid and brightener baths if at all possible. Check with a detail shop if what your doing isn't working for you.
Me, I use McGuire products.. Why I don't know, other they seem to work and its fairly fast to wipe on wipe off.
One other thing..Beer is a requirement for this type of job.
