Yesterday I bought a product called MAXIMA SPRAY AND SHINE. On the can it says it works well on plastic. So I put some on my fenders and let it dry like the directions said. That was the worst 10 dollars I spent in all my life. First of all it did the exact opposite of shine. I WAS PISSED. My fenders were dull. Looking further into the ingredients I saw it had mineral spirits. Now I have to buy new plastics. Could some one tell me what the problem is and how I can fix it. Hopefully I could fix it. I also was wondering what other kind of plastic shine I could use. Thanks