Specifically formulated for gasoline engine oil applications, this UV fluorescent dye pinpoints leaks in deteriorating gaskets and critical engine components. A single 30 ml bottle treats 4 to 5 qt (4.7 L) (3.8 to 4.7 L) of oil, producing a bright yellow-green glow when exposed to ultraviolet light. The dye is fully compatible with the host lubricant and can safely remain in the engine for long-term monitoring without affecting oil performance.

Specifically formulated for gasoline engine oil applications, this UV fluorescent dye pinpoints leaks in deteriorating gaskets and critical engine components. A single 30 ml bottle treats 4 to 5 qt (4.7 L) (3.8 to 4.7 L) of oil, producing a bright yellow-green glow when exposed to ultraviolet light. The dye is fully compatible with the host lubricant and can safely remain in the engine for long-term monitoring without affecting oil performance.