I had ran out of the car wash liquid, and started using Dawn dish liquid. The worst thing ever. My car is Super black, and new! The first time I used dawn I noticed the dull haze on the car even after hand drying it with a micro towel. Got the MOTHERS, AND POW! The shine is back, with no dull residue. I did make sure I gave her a double bath, not bubble bath; just to make sure all that other gunk was washed away. The rinse also sheeted again. Using that dish liquid was like I had no wax, nor polish on the car. This stuff is fantastic!!!!