McKee's 37MK37-515 High Performance Glass Restorer, 16 fl. oz.

I tried everything to remove water spots off my Cadillacs rear windows. Nothing worked. I found McKees 37 doing a search online and figured I would give it a try. It went on easy, rubbed it in pretty hard and then used a clean microfiber to shine it after. There was no residue left behind. The water spots are now gone. I thought I had tried everything and that I was going to have to live with them. If you have water spots you are trying to get rid of, your search is over. Try this and don’t look back. You will wish you found it sooner as I do.UPDATE - This also works GREAT on my glass top range/stove. I had some burned on marks on the glass top and decided to give this a try. It is now my go to cleaner for my glass top range. Great Stuff!!

My car windows were badly etched from both my laziness and the crappy water in the local car wash. I buffed out my windows using this stuff on an orange polishing pad worked it into each window. Worked like a charm and now you can barely see the etching spots.

Used Mainly for Auto Glass, Worked well on my Glass Storm Door. Easy on Easy Off Takes out tough Water Spots, hides some very minor scratches

2008 Miata windshield - Didn't remove all water spots. I applied product using hand/I did not use DA machine.

I hardly ever write reviews, but was so happy with this product that I am writing one on this. I purchased a used car that had horrible water stains all over the side windows and surrounding areas. I tried everything over the last 8 months that I have had the car and nothing worked. I even paid for an expensive detailing and they couldn't get it off. My bro-n-law mentioned that he had used a polish type product that had worked, so I searched on Amazon and found this. It worked. Yes, you do have to put some elbow grease into it and may have to go over spots a few times, but it gets the water stains off. It even worked on the surrounding areas such as the chrome and car paint.