ACDelco 1148963 GM Original Equipment 10-5045 Multi-Purpose Fluorescent Leak Detection Dye - 1 oz

This glows very brightly under UV light. A few small drop works well. It will get everywhere so be careful but a good purchase.

The media could not be loaded. Pretty cool product! I wanted to put it to the test just to be sure so check out the video attached if you’re curious. I tested the dye in a small bottle with a uv flashlight to be able to see any leaks as clear as possible (it shows florecent orange so you can really really see). It definitely identifies leaks! I’m a fan. :)

I watched some videos on how to use this and was told you had to use a lot for it to show up well. My results were quite the opposite. This is plenty strong and makes any leaks/cracks very easy to see. Glows a bright orange under a blacklight. I will definalty keep a bottle of this around for finding leaks.

Worked fine but bottle leaks all over now. 😔

I have been fighting transmissions leaks in my 67 Camaro for ages. The dye really lets you see the source of the leak. I cleaned under the car really well and added the dye. Then I drove it a few miles. Using the special glasses and the black light I got with the dye, I could see exactly where the fluid was leaking from. The dye will not hurt anything.

The product is very good. But, don't be stupid like me and add it with the engine running. It splattered all over the engine bay. Lucky for me you can't really see it.

The product arrived on time but lacked the"Safety Data Sheet". There are no instructions. I called GM Voicemail and requested the data sheet, but never received a response.

I put the whole bottle in my 7.3. This truck takes 4 gallons of oil for anyone wondering how much you need, well, it dyed enough for me. I shined in the bottle to see the color, it's bright orange almost. I've already found one leak, and maybe that's it. But I'll have to run it longer to know for sure. Good stuff, worked as intended.