Review on ACDelco 1149328 GM Original Equipment: Dex-Cool Leak Detection Tracer Dye - 1 oz by Chris Edgerton

There was a small refrigerant leak, source could not be determined. Bought this and a UV flashlight (black) and made absolutely clear where my leak was. Only used half a bottle. I recommend skipping the glasses and just waiting until it's dark, or turning off the lights if you're in the garage to use the black light. Trust me, you'll see that with good UV light, this thing glows almost white.