Quote Originally Posted by kenken123 View Post
How about the glasses sir? If its also treated with coating? Is it safe to use Rain-X?

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Out of curiosity, I got Rain-X from Handyman and tried it out on my M3R last month. It's good. It works like it said it would. Rain drops beaded and ran up the windscreen when I drove along SLEX. Can't remember at what speed though. Haven't re-applied it to date as I don't see the need to.