I was using a mcquires oxidation cleaner on my trunk with a buffer then decided to go over the tail light lense and lightly went over the center with the BUICK letters and it gave me a smooth-reflective shine. I then wiped-on a UV protection from an old left-over headlight cleaning kit. I am quite pleased with the results and the UV protector should help keep the lense in a clean condition from dulling from the sun.
Woody
89 MAUI