This product won’t fix a radiator leak but it will almost certainly help you to discover where or indeed if you have any leaks in your system. By adding the Interdynamics Cooling System Water Leaks UV Dye it will help you to locate where the leaks are.
This is a professional grade product that contains just one application of radiator/engine cooling system UV leak detection dye. You’ll need to buy additional products to use it through such as a UV black light. It’s safe to use with all vehicle makes and models except the 1996 and newer GM models that use DEX-COOL coolant. This product is also suitable for use with all types of antifreeze except the DEX-COOL coolant.
The Interdynamics Cooling System Water Leaks UV Dye is a very reasonably priced product that has a lot of positive reviews. Just be mindful that it is a dye and it will stain your skin on contact!