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

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.