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    AI Overview
    DEF Urea adblue diesel exhaust fluid - Uses, & Price ...
    AdBlue® is a high-purity, 32.5% aqueous urea solution (also known as AUS 32 or DEF) used in diesel vehicles with Selective Catalytic Reduction (SCR) systems to reduce harmful nitrogen oxide (
    NOxcap N cap O sub x
    𝑁𝑂𝑥
    ) emissions. It is non-toxic, colorless, and injected into the exhaust, where it decomposes into ammonia to neutralize emissions. 
    Key Facts About AdBlue®/DEF 
    • Composition: 32.5% high-purity urea and 67.5% deionized water.
    • Purpose: Required to meet strict environmental standards (e.g., Euro 6, EPA) by lowering
      NOxcap N cap O sub x
      𝑁𝑂𝑥
       emissions.
    • Usage: Vehicles (trucks, cars, agricultural machinery) with SCR systems require this fluid to run properly.
    • Standard: Must comply with ISO 22241 standards to prevent engine damage.
    • Terminology: Known as AdBlue in Europe and mostly DEF (Diesel Exhaust Fluid) in the United States. 
    Important Considerations 
    • Running Out: If the tank runs empty while driving, the engine will not stop, but its performance will be restricted (loss of power) and it may not restart once turned off.
    • Storage & Handling: It freezes at
      −11∘
      𝐶
       (
      12∘
      𝐹
      ) and should be stored in a cool place, away from direct sunlight.
    • Not Fuel: AdBlue is not added to the diesel fuel tank; it goes into a special, usually blue-capped, dedicated tank.
    • Do Not Use Water: Using water instead of AdBlue will cause severe, costly damage to the SCR system.
    • Synthetic Origin: The urea in AdBlue is synthetic, not derived from animal urine. 
    Common Products 
    • Shell AdBlue 20L: Often comes with a pourer and is used for passenger and commercial diesel vehicles.
    • Yara AdBlue: A major manufacturer producing ISO 22241 certified fluid. 
    AdBlue is critical for keeping modern diesel engines running cleanly and efficiently. If the SCR system fails to function due to lack of fluid or improper substitutes, the vehicle will not meet emission regulations. 
    • Diesel exhaust fluid - Wikipedia
      Diesel exhaust fluid (DEF; also known as AUS 32 and sometimes marketed as AdBlue) is a liquid used to reduce the amount of air pol...
      en.wikipedia.org
    • AdBlue® vs. Urea Solution: Key Differences Explained
      Apr 20, 2026 — Understanding the distinction between AdBlue® and generic urea solutions has become crucial for fleet managers and diesel vehicle ...
      bluediesel.com.my
    • ADBLUE (AUS32) UREA SOLUTION, DIESEL EXHAUST ...
      Introduction. The automotive urea AdBlue, also known by the generic name Diesel Exhaust Fluid (DEF), is the registered trademark f...
      www.techmation.com
    Show all
    • Diesel exhaust fluid - Wikipedia
      Diesel exhaust fluid (DEF; also known as AUS 32 and sometimes marketed as AdBlue) is a liquid used to reduce the amount of air pol...
      en.wikipedia.org
    • AdBlue® vs. Urea Solution: Key Differences Explained
      Apr 20, 2026 — Understanding the distinction between AdBlue® and generic urea solutions has become crucial for fleet managers and diesel vehicle ...
      bluediesel.com.my
    • ADBLUE (AUS32) UREA SOLUTION, DIESEL EXHAUST ...
      Introduction. The automotive urea AdBlue, also known by the generic name Diesel Exhaust Fluid (DEF), is the registered trademark f...
      www.techmation.com
    • What is AdBlue? Why does your car need it? | RAC Drive
      Feb 25, 2026 — Technically, it's safe to drive to a refueling station if you still have AdBlue left, but if you completely run out, the vehicle w...
      www.rac.co.uk
    • What is Adblue®?| Diesel Exhaust Fluid for Emissions - Yara
      Nov 11, 2025 — Why we need exhaust cleaning. Diesel engines are powerful and fuel-efficient, which is why they are widely used in trucks, buses, ...
      www.yara.com
    • What is DEF? How it Works and Why it's Essential for Fleets - Geotab
      Apr 29, 2026 — DEF is a colorless, nontoxic liquid composed of 32.5% high-purity urea and 67.5% deionized water. It is used in diesel vehicles eq...
      www.geotab.com
    • AdBlue® – The Facts - Atlantis Tanks Group Ltd
      Oct 20, 2020 — FACT: Many people believe that the urea in AdBlue® is made of pig urine. It isn't! The urea used to make AdBlue® is a man-made sol...
      atlantistanks.co.uk
    • How to solve problems with AdBlue | Motorists - TotalEnergies UK
      If you add water instead of AdBlue®, it can potentially be extremely damaging and expensive. This is because water can block your ...
      totalenergies.co.uk
    • If I run out of AdBlue will the engine shut down - Greenchem
      No, the engine will not shut down, but some engines automatically limit engine performance when AdBlue® supplies are depleted. If ...
      en-gb.greenchem-adblue.com
    • Automotive Grade Urea Solution Process: AdBlue and DEF
      Urea concentration measurement in automotive AdBlue production. Automotive urea AdBlue, also known as Diesel Exhaust Fluid (DEF), ...
      www.vaisala.com
    • All you need to know about AdBlue®
      Mar 17, 2023 — AdBlue ( Diesel Exhaust Fluid ) ® can normally be purchased in 5,10,20 litre containers, usually sold with a funnel/spout to allow...
      skinnytree.co.uk
    • Crast Premium AdBlue® 20L - ISO22241 Certified, Barbados | Ubuy
      This 20-litre pack ensures you have an ample supply of ISO22241 certified AdBlue®, suitable for all makes and models of commercial...
      www.barbabos.ubuy.com
    • Go to product viewer dialog for this item.
      Shell Adblue 20l With Pourer Urea Solution Diesel For Audi Bmw Diesel
      Find out more about the product...
      Google
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    My Ad Center
    Videos
    Diesel Exhaust Fluid (a.k.a Adblue)
    YouTube · Best Chemical Co (S) Pte Ltd
    Mar 18, 2025
    YouTube · Best Chemical Co (S) Pte Ltd
    0:36
    We provide drive-thru Adblue refilling services for 10L, 20L, 200L, and 1,000L containers. Visit us today.
    carmanick explains... Adblue/DEF and Selective Catalytic ...
    YouTube · carmanick
    Jan 21, 2024
    YouTube · carmanick
    5:56
    Adblue, or diesel emission fluid, is an ammonia-based solution used to treat exhaust emissions from diesel vehicles.
    Selective Catalytic Reduction - DEF/Urea Level Alerts
    YouTube · HyundaiIndia
    Aug 21, 2025
    YouTube · HyundaiIndia
    2:17
    Low URA levels are indicated through URA level alerts in four stages. Refill URA as soon as the first warning is received.
    View all
    People also ask
    Are DEF and AdBlue the same thing?
    An error has occurred. Please try again later.
    Is AdBlue basically water?
    AdBlue® is made of a colourless mixture of high-purity urea (32.5%) and deionised water (67.5%), as set out in the ISO 22242 standard. Urea contains ammonia; the active ingredient in AdBlue® that reacts with NOx and neutralises it before it enters the atmosphere.

    AdBlue®: What it is and how it works | Motorists - TotalEnergies UK


    TotalEnergies UK
    https://totalenergies.co.uk › adblue-what-it-is-how-it-works
    TotalEnergies UK
    https://totalenergies.co.uk › adblue-what-it-is-how-it-works
    Can you drive a car without AdBlue?
    Technically, it's safe to drive to a refueling station if you still have AdBlue left, but if you completely run out, the vehicle will eventually prevent you from driving to avoid damaging the engine. It's essential to top up the AdBlue as soon as possible to avoid these issues.Feb 25, 2026

    What is AdBlue? Why does your car need it? | RAC Drive


    RAC
    https://www.rac.co.uk › drive › advice › emissions › adb...
    RAC
    https://www.rac.co.uk › drive › advice › emissions › adb...
    What animal does AdBlue come from?
    FACT: Many people believe that the urea in AdBlue® is made of pig urine. It isn't! The urea used to make AdBlue® is a man-made solution.

    AdBlue® – The Facts - Atlantis Tanks Group Ltd


    Atlantis Tanks Group Ltd
    https://atlantistanks.co.uk › adblue-the-facts
    Atlantis Tanks Group Ltd
    https://atlantistanks.co.uk › adblue-the-facts

    Web results

    Diesel exhaust fluid


    Wikipedia
    https://en.wikipedia.org › wiki › Diesel_exhaust_fluid
    Wikipedia
    https://en.wikipedia.org › wiki › Diesel_exhaust_fluid
    Specifically, DEF is an aqueous urea solution made with 32.5% urea and 67.5% deionized water. DEF is consumed in a selective catalytic reduction (SCR) that ...Read more
  • Other names
  • Chemistry
  • Safety and storage
  • Supply shortage

    • Automotive Grade Urea Solution Process: AdBlue and DEF


    Vaisala
    https://www.vaisala.com › chemicals-allied-products › a...
    Vaisala
    https://www.vaisala.com › chemicals-allied-products › a...
    AdBlue is made by mixing urea with demineralized water resulting in a 32.5% aqueous urea solution. After mixing, the urea solution AdBlue 32.5 % is cooled.Read more

    What is Adblue®?| Diesel Exhaust Fluid for Emissions


    Yara
    https://www.yara.com › industrial-nitrogen › what-is-A...
    Yara
    https://www.yara.com › industrial-nitrogen › what-is-A...
    AdBlue is a 32,5 % solution of high-purity, synthetically manufactured urea in de-mineralized water. It is a safe-to-use fluid. Yara's AdBlue product is ...Read more

    6 things to know about AdBlue®, DEF, AUS32, ARLA32


    Palamatic Process
    https://www.palamaticprocess.com › en-us › blog › six-...
    Palamatic Process
    https://www.palamaticprocess.com › en-us › blog › six-...
    AdBlue is composed of 32.5% urea and 67.5% demineralized water. Invented in 1828, Urea is a synthetic product derived from ammonia.Read more

    AdBlue® vs. Urea Solution: Key Differences Explained


    bluediesel.com.my
    https://bluediesel.com.my › adblue-vs-urea-solution
    bluediesel.com.my
    https://bluediesel.com.my › adblue-vs-urea-solution
    While AdBlue® and Diesel Exhaust Fluid (DEF) are chemically identical, containing the same concentration of urea and water, the terminology differs by region.Read more

    The Benefits of Diesel Exhaust Fluid (DEF) Additivation on ...


    SAE International
    https://www.sae.org › Articles
    SAE International
    https://www.sae.org › Articles
    Oct 7, 2017 — Diesel Exhaust Fluid (DEF) like Adblue® is a urea/water solution injected upstream from the SCR catalyst. Urea decomposes into ammonia (NH3) ...Read more

    What is AdBlue? Q&A on DEF Confusion


    Unity Fuel Solutions
    https://unityfuel.com › blog › adblue
    Unity Fuel Solutions
    https://unityfuel.com › blog › adblue
    Aug 19, 2024 — A: The fluid is a clear, nontoxic fluid typically made of 32.5% synthetic, vehicle-grade urea (ammonia) and 67.5% deionized water. AdBlue must ...Read more

    ADBLUE (AUS32) UREA SOLUTION, DIESEL EXHAUST ...


    techmation.com
    https://www.techmation.com › uploads › 2015/10
    techmation.com
    https://www.techmation.com › uploads › 2015/10
    PDF
    The automotive urea AdBlue, also known by the generic name Diesel Exhaust Fluid (DEF), is the registered trademark for AUS32 (Aqueous Urea. Solution 32.5%).Read more
    2 pages

    Basic Infomation Of Adblue Def


    Guangzhou EverBlue Technology Co.,Ltd.
    https://www.everbluesolution.com › blog › basic-infomat...
    Guangzhou EverBlue Technology Co.,Ltd.
    https://www.everbluesolution.com › blog › basic-infomat...
    The qualified AdBlue® is a high-purity transparent liquid composed of 32.5% high-purity urea and 67.5% deionized water. It has a light ammonia smell and is ...Read more
    People also search for
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    Description

    Huchem AdBlue is a clear, non-toxic and safe high-purity 32.5% urea solution in demineralized water. It is injected directly into the exhaust gas where it serves as a reducing agent for the harmful substances. In the process, ammonia is released which then reacts with the harmful nitrogen oxides in the catalyst to form elemental nitrogen and water.… MORE

    AdBlue Urea solution

    4.2(6)
    Huchem AdBlue is a clear, non-toxic and safe high-purity 32.5% urea solution in demineralized water. It is injected directly into the exhaust gas where it serves as a reducing agent for the harmful substances. In the process, ammonia is released which then reacts with the harmful nitrogen oxides in the catalyst to form elemental nitrogen and water.
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    4.2
    6 reviews
    manomano.de Shopper
    manomano.de Shopper
    54 years ago
    Es ist ein unverzichtbares Pro
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    Es ist ein unverzichtbares Produkt für neuere Dieselfahrzeuge. Und der Preis bei diesem Anbieter ist sehr wettbewerbsfähig. Ich hatte bereits AdBlue bei ihnen bestellt und meine Bestellung ohne Bedenken verlängert.

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    AdBlue Urea solution

    4.2
    6 reviews
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