mike and pat said:There is no easy solution to this problem but I just finished doing this myself. I started 18 months ago and worked on it 2-4 hours at atime and finished it up on tuesday after about 60 actual hours invested. I used plastic razor blades to remove the vinyl and the used plastic razor blades and Vinyl Off to remove the glue. This was the most time consuming part. I then hit it with my Dri wash waterless wash and wax and a terry cloth rag to remove the last remnents. Sometimes the plastic blade can be used after the dri wash to assist in getting last bit off. I tried the steamer and the heat gun and either allowed me to take the vinyl and adhesive off together. Probably because mine had so many crackes in it and I had mold growing under it.
We were at a rally and talked with a fellow who puts 3M film on for a living. He told us the best way to remove it is on a warm day in the sun and use something like a hair dryer to soften it. Then you very slowly and carefully pull it off. He didn't recommend using anything else on it.