Tracer Products Dye-Lite TP-3400 (TP-3400-0008) All-In-One Fluorescent Leak Detection Dye For Oil and Oil-Based Fluids. 8 Fl. Oz. Bottle. New in Open Box. Dye-Lite All-In-One multipurpose fluorescent leak detection dye is used in conjunction with Tracerline ultraviolet or UV/blue light lamps to pinpoint leaks in oil and oil-based fluid systems.
