Hey guys, i recently bought a 2007 is250 lexus and love every bit about the car But today it has been raining and i noticed that there are marks on the windscreen from where the dealership had their stickers? :/ . I have tried using windex and methylated spirits and scrubbing it out but nothing seems to work it is weird because the water like wants to stay in the sticker areas and i think when i used my wipers it smugged it moreover the windscreen! help haha