The solution I use for telescope mirrors and lenses is 4 oz. of Wood alcohol to a half gallon of distilled water with ONE drop of liquid dishwashing detergent to break the surface tension. This is a great cleaning solution for vinyl and CDs; great for windows to but the thing you have to be careful of is anything made of rubber such as weather stripping around windows, etc. as alcohol disintegrates rubber.

Use an old emptied and cleaned out spray bottle for application. If the grooves are "muddied" use a stream on th grooves. Pat dry with a clean 100% soft cotton cloth to dry (Tee-shirt material).