I have tried several different products for this problem and not one of them performed like advertised. I recently decided to try another product recommended by a friend and WOW! this actually worked and better than I expected. I do not work for this comany or make anything for promoting it. I just want to let you folks know what works and not waste your cash on crap that doesnt. I tried it on 3 of our work vehicles and the results were fantastic for all 3. The kit is about $25-$30 and attaches to you power drill. Follow instructions closely and this is the result. And this is the kit. I think Ipaid $26 for it at O'Riley's. It is certainly better than the $3-400 for each new lense.