I used to do vehicles graphics full time back in college but now do a little as a side gig. I debadge all of our trucks at the family business before we get them decaled, even our Peterbilts. What I’ve found to be the best method through the years is pushing a plastic squeegee for vinyl application under the edge of your badge and lightly prying it up. On the door logos they come off pretty easily. For any of the adhesive left I always use a decal easer wheel like the one in the attached picture. They don’t scratch your paint and make a long tedious job a breeze.
Sent from my iPhone using Tapatalk