Quote:
Originally Posted by RodKnock
I'm pretty sure you could sleuth your way to finding the origin of a leak without the help of colors.
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Maybe.

But that's not nearly as cool as putting a different colored UV dye in to each of your fluids. That way, when you find a drop on your garage floor, you just whip out your UV flashlight and it will glow yellow, white, green, bright blue, yellow/green, blue or red. Now that's cool.
Multi-Colored Fluorescent Dyes Pinpoint Leaks in All Oil-Based Industrial Fluid Systems | Spectroline