Review on 🔍 Spectronics Corp/Tracer TP39000601 1oz Engine Coolant Dye - Set of 6 by Donald Cox

Nothing to say - added to the cooling system - used half a bottle per system and black light to trace the leak. Used as a preventative product or to track down known issues, this works well. When topping up the system, be sure to bleed the air and heat the system to the correct level before adding, otherwise you'll have glowing marks later that can cause confusion.