I want to remove a dealer's sticker from my car. The sticker is on a painted surface. What is the best way to do it?
Could I remove pinstripe decals in the same way?
I usually just use a Steam Jenny basically a hot water pressure washer, starting at one edge working my way across the sticker. If you don't have access to that you can use a heat gun or hair drier to heat up the sticker and peal off the sticker starting at one edge keeping it at a 90 degree angle while doing so. You can also use a plastic putty knife or plastic razor blade. Take you time and pull with a steady even pressure.
Another thing that works very well is a pinstripe eraser wheel. We use these when we are removing graphics from our emergency vehicles as part of the decommissioning process.