Had a 1/2 bottle(16oz) of Spray and Rinse left so I filled it with water and shook it. Did some unpolished aluminum wheels that I considered real dirty but not filthy/nasty. Sprayed each wheel completely(nook/crannies) before I came back and rinsed them off. After a thorough rinsing of the wheels I was left with very little dirt. I easily removed the dirt with a rag and the wheels looked immaculate. After the wheel bath I checked the remaining contents of the bottle and seen that I had used about half a bottle.Don't know if I used too much or not but it certainly made/makes wheel cleaning easy. Tomorrow when I wax (3rd time) again I'll go over the wheels with just Super Slick and Suds then treat with Poorboy's Wheel Sealant.