A/C Pro Certified A/C Pro Car Air Conditioner Leak Detector Dye, Detection UV Dye Detects Leaks in R-12 and R-134A Condition Systems, 1 Oz

This stuff works! I was able to quickly identify the source of the leak. It shines very brightly under a UV light.

used in truck because i though I had a leak. turns out go be a break problem. No leeks found in the radiator system

Great way to find leaks! I dumped it into the bottle of clear oil I was using, versus adding it on it's own to the AC system. I was changing the dryer, so I'd need a few ounces of oil anyway. Now I've got a big bottle of oil with dye ready for any future work. It lights up bright green under a blacklight. You can't miss it.

The dye works but not so easy to inject. I don't see being able to use this more than 2-3 times as it is all plastic. 1st time for me but it takes a lot of strength to push it into the system. My compressor glows. Thank goodness I don't see any other leaks 2004 Suburban with +-200' of tubing and hoses in a dual system. Why can't dye come in a can like freon.

You will see things like certain bugs, corrosion, spilled oil all illuminate, If its your first time with a UV light under the hood and make you think how will you tell the differences between all that and a dye. But this dye glows multiples brighter than anything else under the hood. Place a drop in a tissue, shop rag, etc. and shine your UV light and you will clearly see what your looking for under the hood. Small leaks will look like sputter across the area that is leaking itself. E.g. from line which uses a o-ring seal to condenser. The condenser will have bright sputter droplets at the area where the line with bad seal is leaking.

Big fan. I have used this product for a while and easy to use. My only critisism is the included directions. To be honest, they suck. A 1oz. bottle contains four treatments. I can tell you there are basically three ways to use it. If you are working on an A/C system that has no dye then inject 0.25 oz. into the system. If you are working on a vehicle that does not have UV dye added and are replacing a component (such as the compressor or condensor). Either add 0.25oz of dye directly into the new part, before installing it or mix 0.25oz. of dye to 8oz. of PAG 46 and inject the recommended amount of oil to the system, after the repairs are completed. If the manufacturer has already added dye to the A/C system and you are performing a repair or refill service, mix 0.25oz of dye to 12oz. of PAG 46.

The UV dye seems like a good product. However, the packaging is not tamper evident. The first bottle was leaking out of the package when it arrive. I ordered a replacement and it was opened already. Leaking UV dye is never a great surprise.

Worked perfectly. Helped find my leak in my trucks ac. Didn't cause any issues with the function of my system.

Works good

El producto cumple su función. Completamente recomendado.

super

does the job.

This product when used with a uv light, ac leakage will appear as a white spot. Great maintenance support for ac leakages. Add to any ac system, will no damage pump or hoses.