Emblem Adhesive??

CudaChick1968 said
I tried the water and alcohol (no effect), but since aluminum is very porous I'm hesitant to put any chemicals on it. Maybe a dab of Goo B Gone might do it.

From my old tape stripe days, glue gets soft at about 140°-150° F typically. Have you tried heating it and scraping some off with a plastic scraper?