Heres what you need to do to make your lens like new or near new !!! You will need to repeat the process about every six months depending on how often your truck sits outside ...but the results are great and only takes around ten minutes per lens , yes only minutes and will clean and smooth out minor scratches ... The product is called ( NU-FINISH CAR POLISH ) .....No need to remove the lights and no worries if you get it on your paint or cladding . you can find it at any store for around $9.00 !!! Let me know how it worked for you or for my method of applying the polish ...