I'm glad I found this thread. My guage cluster plastic is horrible. I tried Griot's Plastic Cleaner and Plastic Polish and it didn't work well. Next, I tried Novus 1 and 2 and either it didn't help or it just made things worse. Honestly, the Novus #1 seemed to do more for it than anything. I've stopped messing with it for fear of making it worse. I see other plastic polishes from Meguiars, like their Mirror Finish line, has anyone used these? My next step is Plexus. If it will hide them some, it may be livable. I wonder if anyone has used Lamin-X on it to make it more durable...just an idea.