How long will this product be visible after it is added to machine oil?

It stayed visible in engine oil (Mobil -1-), for at least 1500 miles. I believe that it remains visible until oil change. This is desirable if you are looking for a slow leak.

Can this dye be used in coolant/antifreeze also?

This product is only meant to work with oil. I would not recommend using this in your cooling system.

What quantity of dye per quart of oil do I need for transmission fluid

The manufacturer's instructions state that the dilution ratio is 1 oz. of Dye-Lite TP-3400 (fluorescent leak detection dye) for every 12 quarts of automatic transmission fluid. The ratio for engine oil is 0.5 oz. per 4-6 quarts. For additional information about the product you can contact, Tracer Products, at 800-641-1133 or www.tracerline.com.

Oil already glows under a black light how does this help

We use black light to find leaks in big diesel engines. Engine oil (at least the ones we use), diesel fuel and coolant do not glow under black light.

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Tracer Products TP34000601 UV Fluorescent Leak Detection Dye - Set of 6, 0.20 Pounds, Regular

Product ID: 3596780

Details

Brand
TRACER
Color
Regular
Item Form
Oil
Item Weight
3.2 ounces
Unit Count
6 Count

⛽Compatible with gasoline & diesel fluids

🔦UV fluorescent for pinpoint leak detection

⚙️Multi-fluid system versatility

Description

🔦 Illuminate leaks before they illuminate your expenses!

GLOW TO KNOW - Instantly reveals leaks with vibrant UV fluorescence for fast diagnostics.
TIME IS MONEY - Detect leaks in just 10-15 minutes, saving costly mechanic hours.
MADE IN THE USA - Quality you can trust, supporting domestic manufacturing.
PRO GRADE EFFICIENCY - Trusted by professionals for precise, hassle-free leak detection.
UNIVERSAL FLUID COMPATIBILITY - Works seamlessly with gasoline, diesel, engine oils, and transmission fluids.

Tracer Products TP34000601 is a set of 6 UV fluorescent leak detection dyes designed for oil-based fluid systems including gasoline and diesel engine oils, fuels, and transmission fluids. It enables quick, precise leak identification under UV light, saving time and costly repairs. Highly rated and made in the USA, it’s a must-have for efficient vehicle maintenance.

Specifications

ASIN	B000JFHNTM
Best Sellers Rank	#334,032 in Automotive ( See Top 100 in Automotive ) #11 in Automotive Trim Dye
Brand Name	TRACER
Color	Regular
Customer Reviews	4.6 4.6 out of 5 stars (336)
Global Trade Identification Number	00672052165046
Item Form	Oil
Item Weight	3.2 ounces
Manufacturer	Tracer Products
Manufacturer Part Number	TP34000601
Model Number	TP34000601
Number of Items	1
UPC	672052165046 522536784945
Unit Count	6 Count

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