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InterDynamics Certified Auto Pro Oil and Fuel System UV Dye Leak Detection for Cars & Trucks & More, 1 Oz, 374CS, Universal

4.5 4.5 out of 5 stars 1,656 ratings

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Brand InterDynamics
Material Plastic
Item Weight 0.1 Pounds
Style Oil and Fuel Systems UV Dye

About this item

  • Contains one application of oil and fuel system UV leak detection dye
  • For use in engine oil transmissions power steering systems and gas and diesel fuel systems
  • Compatible with all weights of petroleum based lubricant
  • Helps locate leaks
  • Professional grade
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Product Description

Certified A/C Pro Oil And Fuel Systems UV Dye is for use in engine oil, transmissions, power steering systems, and gas or diesel fuel systems to help determine where there might be a leak. Includes one application of oil and fuel system UV leak detection dye. Certified A/C Pro Oil and Fuel Systems UV Dye is a professional grade leak detection dye that is compatible with all weights of petroleum based lubricant.

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InterDynamics Certified Auto Pro Oil and Fuel System UV Dye Leak Detection for Cars & Trucks & More, 1 Oz, 374CS, Universal


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What's in the box

  • InterDyn - 374CS
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    Customer reviews

    4.5 out of 5 stars
    4.5 out of 5
    1,656 global ratings

    Customers say

    Customers like the performance, leakage, and value of the electronic sensor. They mention that it works extremely well, helps find leaks, and is good value. That said, opinions are mixed on the visibility, dye, and glow.

    AI-generated from the text of customer reviews

    63 customers mention46 positive17 negative

    Customers like the leakage of the electronic sensor. They say it works great to find leaks, and it makes it easy to track a leak.

    "This stuff is awesome! Works great to find leaks." Read more

    "This UV leak additive does an excellent job of helping to find oil leaks on my Acura/Honda!!!" Read more

    "...The dye itself always works amazing and is the easiest way to discover any fluid leaks in any engine!" Read more

    "...however, do not leave in a hot environment, as the bottle ended up leaking creating a slight mess." Read more

    62 customers mention56 positive6 negative

    Customers are satisfied with the performance of the electronic sensor. They mention that it works extremely well for them with a good light and yellow color.

    "Used this to find a power steering leak. Worked well and actually clogged the leak somehow" Read more

    "Works well but you’ll need to buy a uv flashlight unless you already have one." Read more

    "Convenient and effective.. I was able to find the oil leak..now to fix it..." Read more

    "...Worked like a charm and spray was easily detectable...." Read more

    34 customers mention28 positive6 negative

    Customers like the value of the electronic sensor. They say it's well worth the price, works well, and is a useful product. Some mention that it'll save you time and money.

    "This stuff is awesome! Works great to find leaks." Read more

    "...Useful product, and the price was the best." Read more

    "This stuff is amazing. Helped me find my oil leak quickly" Read more

    "Good item." Read more

    13 customers mention13 positive0 negative

    Customers find the electronic sensor easy to use. They mention that it is very helpful in oil and power steering leak detection, and it saves hours of frustration. Customers also say that it's convenient and effective.

    "This is a very easy product to use. In my case I had the engine steam cleaned and then added the dye...." Read more

    "Very easy to use showed me right where the leak was had an intake leak would buy again" Read more

    "Convenient and effective.. I was able to find the oil leak..now to fix it..." Read more

    "This stuff is extremely helpful, but like previous reviewers have said; make sure you black light your engine before you use this...." Read more

    25 customers mention8 positive17 negative

    Customers have mixed opinions about the visibility of the product. Some mention that it's easy to see the dye, with a bright color and a noticeable color change when a UV light is shined on the engine. However, others say that it is very hard to see, has no distinct color glow, and will not show up if you try to use a remote camera. However, some customers say that the stuff shows up like green neon with uv blue flashlight.

    "...Turns out that it just so happens to glow the exact same color as grease and every last plastic part on your vehicle...." Read more

    "Nice, bright dye. Any blacklight will work. Easy to clean off with brake cleaner, there may be other ways of cleaning leaks...." Read more

    "...glow under UV with a UV lamp a greenish yellow tint, it looks purplish to a naked eye ...." Read more

    "With a UV blue flashlightthis stuff shows up like green neon. Located the oil leak on my 1976 Honda CB750K after running it a few miles." Read more

    23 customers mention10 positive13 negative

    Customers are mixed about the glow of the electronic sensor. Some mention that it glows very brightly, while others say that it doesn't even a single glow was detected. However, some say that the glow is very distinct and that it will not make your oil leak glow like a rave.

    "It comes out of the bottle orange with a very distinct glow, but when you add it to oil, it glows a faint green...." Read more

    "...It shows nice and bright but definitely need a black light with this product" Read more

    "...NO VISIBLE GLOW whatsoever. I did test a small droplet of the dye before pouring it into the engine too...." Read more

    "...What is great is the color and luminosity of this dye under UV light! I will absolutely purchase this again if I need more dye!" Read more

    18 customers mention12 positive6 negative

    Customers are mixed about the UV dye. Some mention it's a great product with lots of UV pigment, while others say that it has zero UV dye properties and is useless. Some customers also say that the dye turns the oil black and has little to no UV reflectivity.

    "...Dye is concentrate and I was able to use one bottle in all 3 holes in my Harley Bagger. Bottle is difficult to pour from...." Read more

    "...But in my case I could find no sign of the UV dye at all, and it did not show me where the leak was centralized, I am trying to determine if it was..." Read more

    "...Feel safe buying from them.The dye itself always works amazing and is the easiest way to discover any fluid leaks in any engine!" Read more

    "...I recommend getting the CFL black light as well since it has high UV output, probably much more than a standard UV LED flashlight...." Read more

    Worth every penny to find difficult leaks
    5 Stars
    Worth every penny to find difficult leaks
    I have a motorcycle that was giving off gasoline fumes since I purchased it. No obvious leak, not enough to drip on the ground. Just a minute "weep" of liquid that would slightly coat the underside of the tank but never drip. Bike mechanic couldn't find anything wrong. Finally after too many times going into my garage only to be greeted by excessive fuel vapors, I got some of this stuff along with the suggested inexpensive UV light and goggles. It took a few seconds to find the leak - a micro-crack on a small pressed dimple under the tank. Took it to a buddy with a welding shop and it's as good as new.
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