Re: [Shop-talk] oil leak detection dye

[David Scheidt <dmscheidt@gmail.com>]

On Aug 19, 2013, at 10:53, "Karl Vacek" <KVacek@Ameritech.net> wrote:

> I was surprised to learn that engine oils show up nicely under UV light
> without any dye.  A dye may make it glow even brighter, but with a good UV
> light you can see oil leaks just fine as long as there's a little shade.
>
Dyes can also change the color it fluoresces. That is handy for finding a leak
in a dirty engine compartment.
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