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

This thing really hangs around! I used a whole bottle to make sure the Subaru Forester's radiator was leaking through the tank's top gasket and it worked great. Also used to check for a head gasket issue on an Infinity G35 - over pressure throughout the cooling system (fogging at EVERY hose connection). I replaced the radiator and thermostat on a Subaru and there was still plenty of punch in the system even after topping off a gallon or two. . Excellent material! BTW, I wouldn't recommend NOT just tossing this into an overflow. it took FOREVER to spread! :)