wifehatescar
It probably does, but when I washed my towels without presoaking in Dawn it left a residue in the washer. I actually presoaked them before in Cheer or something like that. I figure if Dawn is supposed to remove wax from a car, it should break it down and remove it from my towels. All I know is that this way works very well for me and I don't have to wash out the washing machine when I am done. Oh, and yes I have a water softener so hard water isn't an issue for the scummy residue.