I'm about to order a matte white or grey car (paint is called designo Magno Grey/Cashmere), and I'm wondering whether I can use the ONR or UWW+ bottles that I have? Apparently matte paint needs simple car soap and water without any agents to increase shine as used on gloss paint cars.
Also, any general positive/negative experiences with washing matte paint cars?
Also, any general positive/negative experiences with washing matte paint cars?