Review on ACDelco 1148963 GM OEM 10-5045 Multi-Purpose Fluorescent Leak Detection Dye - 1 oz by Adam Boudreau

Works better than expected. The sunlight was enough to find this fountain, but the color saved a lot of time. 0.5 ounce, half bottle, placed in the power steering reservoir and started the car. In just a few minutes all the yellow paint was under my pressure hose. I think I use the other half of the bottle to find oil leaks.