How to remove car decals that have been on the car for a long time?Here are several practical methods for removing decals that have been adhered to the car body for a long time:1. Using a heat gun: Set to the hot air mode and aim at the decals on the car. The heat softens the adhesive, making it easy to peel off the decals. After removal, use a specialized adhesive remover to clean any leftover residue.2. Applying tar remover: After most of the decals have been removed, some adhesive residue may remain on the car body. At this point, spray tar remover onto a clean cloth and apply it to the residue area, gently wiping to remove it completely.3. Waxing the car body: After cleaning the car, use a special circular sponge with solid car wax, take an appropriate amount of wax, and apply it evenly on the car paint to form a protective layer. This effectively protects the car paint from damage.4. Polishing after drying: Once the car wax is completely dry, use an ultra-fine microfiber cloth to polish the paint, similar to polishing shoes, with the aim of restoring the car body's original gloss.