Intended to be used to detect elusive leaks in petroleum- or synthetic-based fluid systems, Oil-Glo 33 is highly concentrated. To use the fluorescent oil dye, add a small amount to the system and allow it to circulate. Wherever there is a leak, the dye escapes with the oil and remains at the leak site. The company’s high-intensity UV or blue light inspection lamp illuminates with fluid with a bright green glow.

Spectronics Corp., (516) 333-4840