I have used oil flow 141 in the past. Works great for this. Washes off with soap and water. Wax afterwards. We used it on a corvette that had road tar all over it. It came off within less than an hour. Look under oil flow 141 in search engine. Good Luck.
Chris
I used a water based dressing which is called Sheild n Shine. they are professional products. It did dry completely but the next day it rained and ran down the side of the car. Is this because it is silcone based? It is like spin off from a tire onto the body. Which happens frequently on dressed...
I have a hearse limo that I do for a funeral home that is black with a hard vinyl top. What can I use to protect the top that will not run in the rain?
Chris