I struggled a lot with the dealership badge, but found that WD-40 works wonders on the adhesive. So when I removed the '24 VALVE V6' badges I used WD-40 and an old CD and it worked beautifully! The cd was soft and flexible enough to work fine with the paint. I just soaked a little WD-40 into the badge for a few minutes beforehand, then whiped it with a rag afterwards.