My 86 420 sel has this nightmare also. Is
that meguiars polish as good as flitz ???
Even when I used flitz for an hour I only got very light improvments. But I still have hope and I will not resort to just replacing the trim. I hope you don't either. I know it is some sort of corrosion and if it went on over time I will take it off over time. If it takes weeks or months, I'm still going to get this stuff off !!! yeah I'm crazy