Spectroline High-Performance Fluorescent Dye, OIL-GLO Ultra, Yellow/Green, 1 Pint (16 oz)


Ideal for use as part of a diagnostic/preventive maintenance program for industrial systems. Work effectively in any enclosed circulatory system where fluids are used.

Available in multiple colors, the new ULTRA formula is independently tested for system compatibility and is filtered down to 2 microns. The result is a fully miscible, high-quality, and non-particulate dye formulation that never compromises the integrity of the system. These quality dyes will not change the viscosity or lubricity of any host fluid. They perform better under difficult conditions and have greater stability, making them the perfect tool for long-term preventive maintenance and leak detection.

  • Fluoresces yellow/green under ultraviolet or violet light
  • A 16 oz. bottle treats up to 128 gallons of hydraulic oil

For use in synthetic or petroleum-based fluid systems:

  • Light-colored hydraulic fluid
  • Dark/intensely blue hydraulic & lubrication fluids
  • Compressor oil
  • Engine oil
  • Gearbox oil
  • Fuel (gasoline or diesel)


  • User Friendly — Just add a small amount of dye to the system and let it circulate. All leaks will glow brightly when scanned with a high-intensity Spectroline leak detection lamp.
  • Versatile — Allows inspection of an entire system under virtually all operating conditions. Pinpoint the exact source of the smallest, most elusive leaks – even multiple and intermittent leaks.
  • Cost-Effective — Highly concentrated. Contains more active ingredients per dose than competitive dyes.
  • Improved Shelf Life – Up to 5 years.
  • Improved Stability – More tolerant to extreme temperature range & moisture.
  • Size: 16 oz. (473 ml) bottle.
  • NSF Certified — OIL-GLO® fluorescent dyes are registered to meet food-grade processing requirements. OIL-GLO® dyes meet category codes HTX-2 and HX-2.
SKU: HC-OIL-GLO-YG-16 Category:
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Additional information

Weight 1.2 lbs
Dimensions 8.625 × 4.625 × 2.875 in



16 oz (473 ml)

Use with

UV or Violet Light Lamp