I was wondering if anyone has a good way to clean the lens that covers the speedo, temp, feul gauge etc. I have always used a soft damp terry cloth in the past but over time it seems to leave hairline scatches which you really only see when the sun shines directly on it. I presume it is made out of Polycarbonate or maybe Acrylic. I don't know if you use a microfiber cloth that it would be any better. Anyways I am always open to a better way if you have one.