On plastic on my van. Minimal spirits? Wd-40? Anything I should stay away from? It is on my wife's minivan Both plastic and metal. Thoughts?
Goof Off definitely removes adhesive, but it also removes paint. I wouldn't suggest it for this particular application.
Rapid Remover http://www.rapidtac.com/rapid-remover.html This is what we use at the Sign Shop when working on vehicles.