0000 steel wool, and I made a little paste from, car wash soap, water, bar keepers powder and believe it or not; scrubbing bubbles...I lightly rubbed the paste on the windows with the steel wool and rinsed it off. After I completely dried the windows, I threw some wax on them just to protect from future hard water spots. I tried everything(LITERALLY), Everything from vinegar, baking soda, expensive spot removers etc. And there was no way in hell I was paying a detailer $30 to do just windows. So I kinda just tried mixing several things that would be gentle to the paint as well. DON'T USE ANYTHING OTHER THAN 0000 STEEL WOOL or use too much force because you'll seriously mess up your windows. If it doesn't work the first time, just repeat the process.
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