Automotive Oil-Based Leak Detection Dye 6-Pack - Bright UV Trace

In this review of the LF2001 Automotive Oil-Based Fluid Leak Detection Dye, the bottom line is clear: this six-bottle kit is built for DIY mechanics and small shops that need a simple, cost-effective way to find oil, fuel, ATF, and power steering leaks. The reviewer found the product particularly useful because the UV fluorescent yellow/green dye mixes with host fluids and highlights even tiny or intermittent leaks when scanned with a leak detection lamp, making it a practical tool for pinpointing otherwise hidden problems.

Key Features

• Multi-fluid compatibility: The dye works in oil, fuel, ATF, and power steering systems so you can test several vehicle systems with a single product.
• Bright fluorescence: When used with a blue, violet, or ultraviolet lamp the dye fluoresces yellow/green, making leak locations visible against grime and dark engine bays.
• Single-vehicle dosing: Each 1 oz bottle is formulated to service one vehicle, which helps control costs and dosing for individual repairs.
• Pinpoint accuracy: The UV dye reliably accumulates at leak sites, helping to identify micro leaks and intermittent seepage that can be missed by visual inspection alone.
• Made in the USA: Manufactured domestically by a company with decades of experience, providing consistency in product quality and supply.

Who It's For

This kit is ideal for DIYers who perform basic automotive maintenance and need an affordable diagnostic aid to find oil-based fluid leaks without dismantling systems. It is also well suited to small to mid-sized repair shops that require an economical, versatile dye for routine leak diagnosis across multiple fluid systems.

Professionals who need high-volume diagnostic throughput or integrated refrigerant system solutions may prefer commercial-grade quantities or specialty dyes; likewise, anyone without a compatible leak detection lamp should plan to purchase a blue, violet, or UV light to get the best results.

Pros & Cons

Pros

• Compatible with multiple oil-based systems, reducing the need for separate products.
• Yellow/green fluorescence is easy to see with the appropriate leak detection lamp.
• Single-vehicle bottles make dosing simple and cost-effective for small jobs.

Cons

• Some users report mixed brightness results, so a high-quality leak detection lamp is required to reliably see the dye.

Specifications

Our Verdict

The LF2001 six-pack delivers strong value for DIY mechanics and small shops that need an economical, flexible dye to locate oil-based leaks. It excels at pinpointing micro and intermittent leaks when paired with a proper UV or violet lamp, and the single-vehicle bottles keep waste to a minimum. This is a practical, well-made diagnostic tool for routine leak detection needs.

Frequently Asked Questions

Will this dye work in my vehicle's transmission?
Yes, the dye is compatible with ATF and will circulate with transmission fluid to reveal leaks when scanned with a UV-compatible lamp.

Do I need a special flashlight to see the dye?
A blue, violet, or ultraviolet leak detection lamp is required for best visibility; results vary with lamp quality and brightness.

How many vehicles can I service with the kit?
Each 1 oz bottle is intended to service one vehicle, so the six-bottle kit can service up to six vehicles.