How can I get windshield wiper fluid stains out of my garage floor?
I know this post is super old but my boyfriend and I had this issue recently. We used a little laundry detergent and comet at first. That helped a little but what really worked was kaboom, the one that's for the rest rooms. This really penetrated the concrete. We let it sit about 15 minutes and pressure washed it. We did that about 3 times and it did the trick.