Study by The Technical University of Munich

The Technical University of Munich has carried out an impartial scientific comparison test in association with Mercedes-Benz to establish the exact ranking of hand washing versus machine washing of vehicles relative to damage to paintwork .

Study by The University of Texas at Arlington

The International Carwash Association working through a special Carwash Research Foundation Grant to the University of Texas at Arlington, Texas , has conducted extensive car washing tests this past year to determine the effect on car finishes by comparing various car washing techniques ranging …