Ron,
Hal had the Turtle Wax Scratch Remover in the garage. We tried it before heading to Walmart. It did clean it somewhat but would take forever to clean all that seaming inch by inch and lots of elbow grease.
Hi Gail,
How I use the scratch remover on such surfaces makes a huge difference in the amount of effort required and desired results. I have found it best to use an old cotton tube-sock with the fluffy inside turned out. I also cut off the elastic part that goes around the leg. If I use an applicator sponge, a paper towel, a t-shirt rag, or anything else on such surfaces, I work much harder and get less desired results. I don't know what it is about old tube-socks, but they work best for me doing such detail work.
Admittedly I have a full body paint job on our PC so there is no raw plastic, therefore I am not experienced with unpainted PC materials. My experience is on other vehicles where once shiny smooth unpainted plastic has faded, stained, and lost it's shine. Plastic headlight lenses are most popular a project for it, but requires time and effort. Tail lights and and other smooth plastic is much easier. Do NOT use on textured plastic or black unpainted bumper covers.
