Drop an email to Duragloss themselves. Anyway whatever you use do a test spot first.Sounds great but based on autogeek. It didn't mention about DG Ultimate Orange to be PAINT SAFE! Please correct me if I'm wrong.
Duragloss Ultimate Orange (UO) #461
Optimum Power Clean All Purpose Cleaner 17 oz. New & Improved!
I'm no chemist so if the manufacturer doesn't claim it can do this and that. I don't dare to do it. Better be safe than sorry later.