Mastercool 53610 Universal Fluorescent Leak Detection Dye for Oil, Fuel & ATF

The Mastercool 53610 is a versatile fluorescent leak detection dye designed for use in multiple automotive fluid systems. This professional-grade diagnostic dye helps technicians and mechanics quickly locate leaks in engine oil, transmission fluid, and fuel systems using UV light detection.

Key Features:

• Multi-application formula works with engine oil (gas and diesel), automatic transmission fluid, and gasoline/diesel fuel
• Concentrated formula provides sufficient dye for multiple vehicle applications
• Glows brightly under UV/black light for easy leak detection
• Safe for use in vehicle fluid systems without affecting performance
• Professional-grade formulation trusted by automotive technicians

Application Rates:

• Engine Oil (Gas & Diesel): 1 vehicle application per 4-5 quarts of oil
• Gasoline & Diesel Fuel: 1 vehicle application per 2 gallons of fuel
• Automatic Transmission Fluid: 1 vehicle application per 4-5 quarts

This fluorescent dye is an essential diagnostic tool for identifying hard-to-find leaks in automotive fluid systems. Simply add the appropriate amount to the system, run the vehicle, then scan with a UV light to pinpoint the exact source of leaks.