| I have used dish soap, at times, for over 13 years. Never noticed any problems. Working at a used car dealership my reasoning is to remove fillers and oils, to see condition of paint, and to have a clean surface if the car needs some paint touchup.
As far as removing wax, it will remove a layer, but definitely not all.
Decon systems are approved for vehicle wash and dwell and are much more aggressive than dawn.
Also listen to some threads on tree sap or tar removal. Everyone has a solvent or product with solvent in it and they say to apply to paint and dwell.
I think Dawn wash has it's place, but a good car wash soap is cheap enough. |