Originally Posted by Play21cw
My car is 10 days old haha
Just because it's new doesn't mean it's clean. I had some kind of nasty oils or something on a new car I once purchased and it made a lot of streaking on the glass. I cleaned it over and over again, but couldn't get it all off.
Then someone gave me a great tip to use a clay bar on the glass. I used them on my paint before, but never even thought to use them on glass. It ended up working great. The glass came out unbelievably clean.