🔍 InterDynamics Certified AC Pro Car Air Conditioner Leak Detector Dye: UV Dye for R12, R22, and R134A Refrigerant Systems, 1 Oz - 376CS Review

Works great! But I found the same one at my local auto parts store for the same price. So not the best deal, but a good product. Check your local parts store before buying here. It would be better to receive it same day than 2 days later.

Essential when charging your air conditioner every season. Inject it at the next refill and you will find a leak. It's usually the compressor or one of the bolt gauges if it's an older car. But once you find your leak, keep looking. Look at the whole system. Especially if you find a leak in the o-ring. Very common on new cars. Quality control can be bad sometimes. Human hands assemble the AC system, not a robot.

My wife had a 2007 Odyssey that had a refrigerant leak which I fixed by adding refrigerant when she complained that her air conditioner was not working. That went on for two years. I could tell she would because the leak was getting worse and worse. I thought I could find the leak by finding the refrigerant oil filter but I never found it. I added half a bottle of dye and the next day the leak was easy to find with UV light. The condenser had a hole at the bottom. I highly recommend this dye.