Diesel in adblue getankt

This solution is injected into the exhaust stream to reduce nitrogen oxide (NOx) emissions, which are harmful pollutants produced by diesel engines. Visual Checks Before Filling

  • Look at the cap before opening
  • Check the label on the filler neck
  • Note the cap color (blue = AdBlue, black/green = diesel)
  • Verify nozzle size matches opening

3.

Typically if you possess a Euro 6-Diesel compliant BMW, Audi, Land Rover, Jaguar, Citroen, Peugeot or Mercedes-Benz, it likely runs on AdBlue technology. It might cost you, but it is far better than damaging your car and having to buy a brand new one.

AdBlue mix up happens every now and then, and you don’t have to panic, it can be resolved.

If you need more info check this article from wikipedia.

Conclusion

AdBlue is a relatively new innovation and is increasingly becoming popular due to its advantages.

These precautions, sadly, are not enough, and if you happen to pour AdBlue into your diesel tank accidentally, there can be severe consequences.

Since the AdBlue fill cap sports a much smaller nozzle, you could accidentally pour diesel into it as the diesel’s nozzle is generally much broader.


It is also important to note that using AdBlue that has been frozen and thawed may affect its quality and effectiveness, so it is best to avoid using it if possible.

Our experienced team is equipped to handle AdBlue contamination on-site, getting you back on the road quickly and safely. In 3 Schritten schnell gelöst!

Wenn AdBlue statt Diesel getankt wurde, kann das Fahrzeug beim Starten unterschiedlich reagieren.


Ran Out of Adblue


There are times when you may run out of AdBlue.

This can result in exhaust gases not being properly filtered, leading to increased emissions and the potential for engine failure.

SCR System Damage

In vehicles that utilize an SCR system for emissions control, the addition of AdBlue into the diesel tank can have a particularly damaging effect. If the AdBlue does freeze, it can be thawed in a warm location or using a thawing agent.

If you’ve got AdBlue in your diesel tank, contact Fuel Fixer for a fast and reliable solution.

What Happens If AdBlue Is Added to a Diesel Tank?

35

AdBlue is an essential part of modern diesel engine technology, particularly for vehicles equipped with selective catalytic reduction (SCR) systems. This could include the fuel pump, injectors, or even the SCR system.

Test the Engine: After the system is cleaned and all necessary repairs are made, the engine will need to be tested to ensure that it is operating properly.

Conclusion

Adding AdBlue to a diesel tank is a serious mistake that can result in significant damage to the engine and related systems.

It's used in modern diesel vehicles with SCR (Selective Catalytic Reduction) systems to reduce harmful nitrogen oxide (NOx) emissions.

Key Facts About AdBlue:

  • Clear, non-toxic solution that looks similar to water
  • Stored in separate tank from diesel fuel
  • Blue filler cap to distinguish from diesel
  • Not a fuel additive - never mixes with diesel in tank
  • Injected into exhaust system to reduce emissions
  • Freezes at -11°C but vehicle systems prevent issues

Why AdBlue Must Never Enter the Diesel Tank

AdBlue and diesel fuel serve completely different purposes and are chemically incompatible:

  • Different chemical properties: AdBlue is water-based; diesel is petroleum-based
  • Separate systems: AdBlue works in exhaust; diesel fuels the engine
  • Contamination risk: AdBlue in diesel tank contaminates the entire fuel system
  • Corrosion potential: AdBlue can corrode fuel system components not designed for it
  • Engine damage: AdBlue in fuel system can cause serious mechanical problems

What Happens if AdBlue Goes in Diesel Tank?

Immediate Effects

When AdBlue enters your diesel fuel tank, several problems occur immediately:

  1. Fuel contamination: The entire fuel supply becomes contaminated with AdBlue solution
  2. System separation: Like oil and water, AdBlue and diesel don't mix properly, causing separation
  3. Filter clogging: AdBlue can crystallize and block fuel filters
  4. Injector damage: AdBlue entering injectors can cause corrosion and malfunction
  5. Sensor failure: Fuel sensors may provide incorrect readings

If Engine is Started

Starting the engine after putting AdBlue in the diesel tank significantly increases the damage:

  • Fuel pump damage: AdBlue circulates through fuel pump, causing potential failure
  • Injector contamination: AdBlue reaches fuel injectors, causing corrosion
  • System-wide contamination: Contaminated fuel spreads throughout entire fuel system
  • Engine performance issues: Poor combustion, misfiring, or engine failure
  • Expensive repairs: Multiple components may need replacement

⚠️ CRITICAL WARNING

DO NOT start your engine if you've accidentally put AdBlue in your diesel tank.

Water and diesel simply do not mix so what happens when you try to start a diesel car on water? Over time, this can lead to a complete engine seizure, rendering the vehicle inoperable and requiring a full engine replacement.

What to Do If AdBlue Is Accidentally Added to the Diesel Tank

If you realize that you have added AdBlue to your diesel tank, it is essential to act quickly to minimize the damage.

It is often mistakenly added to a diesel tank by accident, and understanding the consequences of such a mistake is vital for vehicle owners. The performance loss may be noticeable as the engine struggles to operate under load, especially when accelerating or driving at higher speeds.

Fouled Diesel Particulate Filter (DPF)

One of the critical components in a modern diesel engine is the diesel particulate filter (DPF), which helps reduce emissions by trapping soot particles in the exhaust.

The car’s model often contains a clue in its names like ‘SRC’ or ‘Blue” written alongside.

What Would Happen if You Put AdBlue in Diesel Tank?

To avoid confusion, vehicles typically sport a blue fill cap for Adblue tanks and green, red, or black for diesel tanks. This process will remove any AdBlue residue and clean out any blocked components.

Check the Fuel System: After draining and flushing the system, the mechanic will check for signs of corrosion or damage to critical components, such as the fuel pump, injectors, and exhaust system.

Replace Damaged Parts: If any components are found to be damaged, they will need to be replaced.

petroleum base: AdBlue is 67.5% water, diesel is hydrophobic (repels water)

  • Corrosion risk: Fuel system components aren't designed to handle water-based solutions
  • Combustion problems: AdBlue doesn't burn properly in combustion chamber
  • Crystallization: AdBlue can form urea crystals that block systems
  • Modern Diesel System Complexity

    Today's diesel engines are sophisticated and sensitive:

    • High-pressure fuel systems: Operating at 25,000+ PSI, very sensitive to contamination
    • Common rail injection: Precision components easily damaged by wrong substances
    • Electronic sensors: Multiple sensors monitor and control fuel delivery
    • Emissions systems: Complex DEF/SCR systems separate from fuel system

    Preventing AdBlue in Diesel Tank Mistakes

    1.

    The mistake of adding AdBlue to a diesel tank is often made by drivers who confuse the two filling ports. The system may become clogged, or the catalyst may degrade due to the incorrect chemical composition. Since AdBlue is a solution made of urea, it can crystallize in the exhaust system, causing build-up and potentially blocking the exhaust pipe.

    Diese Reaktionen sind ein deutliches Zeichen dafür, dass etwas mit dem Kraftstoff nicht stimmt und möglicherweise eine Fehlbetankung, wie das Tanken von AdBlue statt Diesel, vorliegt.

    Es ist wichtig zu beachten, dass jeder Startversuch bei einer Fehlbetankung mit AdBlue das Risiko für schwere Motorschäden mindestens erhöht.

    Here’s How to Fix It

    Did you accidentally pour AdBlue in your diesel tank? Every second the engine runs causes exponentially more damage and increases repair costs from hundreds to thousands of dollars.

    Immediate Steps if You Put AdBlue in Diesel Tank

    Step 1: DO NOT Start the Engine

    This is the single most important action you can take:

    • If engine is off, keep it off
    • If engine is running, turn it off immediately
    • Do not turn the key to accessory position
    • Do not attempt to drive to a mechanic

    Step 2: Call Professional Help Immediately

    Contact a specialized fuel rescue service right away:

    • Mobile fuel drain service: Fastest and most cost-effective solution
    • 24/7 availability: Don't wait for business hours
    • Specialized equipment: Professional tools for complete contamination removal
    • Expert knowledge: Understand the specific requirements for AdBlue contamination

    In Perth? Call Rapid Fuel Rescue at 0416 692 022 for immediate assistance with AdBlue contamination.

    Step 3: Note the Details

    Document important information for the rescue service:

    • How much AdBlue was added (estimate if unsure)
    • How much diesel was already in the tank
    • Whether the engine was started
    • If started, how long it ran
    • Any warning lights or symptoms
    • Your exact location

    Step 4: Stay with Your Vehicle

    Remain at the location if safe to do so:

    • Professional help typically arrives within 30-60 minutes
    • On-site service is much faster than towing to a workshop
    • Immediate drainage prevents AdBlue crystallization

    The Repair Process: What's Involved

    Complete Fuel System Drainage

    Professional removal of AdBlue contamination involves several steps:

    Fuel System Drainage Process:

    1. Tank drainage: Complete removal of contaminated diesel/AdBlue mixture
    2. Fuel line flushing: Clearing all fuel lines of contamination
    3. Filter replacement: Installing new fuel filter(s)
    4. Injector check: Inspection and cleaning of fuel injectors if necessary
    5. System flush: Multiple flush cycles to ensure complete removal
    6. Fresh diesel refill: Adding clean diesel to get you mobile
    7. System test: Verifying proper operation before departure

    If Engine Was Started

    Additional work may be required if the engine ran with contaminated fuel:

    • Fuel pump inspection/replacement: Check for AdBlue damage to pump internals
    • Injector cleaning or replacement: Remove AdBlue crystallization from injectors
    • Sensor replacement: Fuel pressure and flow sensors may need replacing
    • Extended flushing: More thorough system cleaning required
    • Component testing: Verification that all systems function correctly

    Cost of AdBlue in Diesel Tank Repair

    If Caught Immediately (Engine Not Started)

    Best Case Scenario Costs:

    • Mobile fuel drainage service: $450 - $700
    • Fuel filter replacement: Usually included
    • Fresh diesel: Included (5-10L to get to station)
    • Total time: 1-2 hours
    • Total cost:$450 - $700

    If Engine Was Started

    Engine Started - Increased Costs:

    • Complete system drainage: $600 - $900
    • Fuel pump replacement: $800 - $2,500
    • Injector cleaning/replacement: $600 - $3,500
    • Sensor replacements: $200 - $600
    • Additional components: $300 - $1,000
    • Total cost:$2,500 - $8,500+

    Perth-Specific Pricing

    In Perth, Western Australia, AdBlue contamination removal costs typically include:

    • Standard drainage (not started): $500 - $650
    • After-hours service: +$100 - $200
    • Regional areas: +$100 - $250 travel fee
    • Complex systems (modern diesels): +$150 - $300

    Why AdBlue in Diesel Tank is So Serious

    Chemical Incompatibility

    AdBlue and diesel are fundamentally incompatible:

    • Water vs.

      Don’t worry, you’re not the first one. Taking adequate precaution while adding AdBlue is definitely the safest approach, but even if you accidentally make a mistake, it is entirely reversible.



      Final Thoughts


      AdBlue has become a necessary component for modern diesel engines, but it can also lead to various problems if not handled properly.

      However, the other way around is quite common.

      As it’s mostly composed of ionized water, it is similar to pouring water inside your vehicle’s diesel tank. This can make AdBlue less effective, leading to increased NOx emissions and potential damage to the engine.


      Hence, you must use high-quality AdBlue that meets the ISO 22241 standard.

      A fouled DPF will require professional cleaning or replacement, which can be expensive.

      Potential for Engine Seizure

      If AdBlue continues to circulate through the engine, the risk of internal damage increases. With the surging number of vehicles using AdBlue, the number of drivers putting AdBlue in diesel tanks has also increased.

      But don’t worry, I’ve got just the solution for you.

      It is also prone to crystallization, which can clog fuel filters and injectors.

      This can cost you thousands of dollars worth of damage, and additionally, you won’t be able to use your vehicle unless it is completely drained out and repaired.

      What to do if You Added AdBlue in Diesel Tank?

      Don’t Start Your Engine!

      In an unfortunate situation where you inadvertently poured AdBlue in a diesel tank, absolutely refrain from starting the engine as this will spread the fluid around your vehicle’s fuel system.

      Called Rapid Fuel Rescue.

      • Mobile service arrived in 45 minutes
      • Complete tank and line drainage
      • New fuel filter installed
      • Fresh diesel added
      • Back on road in 90 minutes
      • Total cost: $550

      Case 2: Engine Started - $4,200 Cost

      Driver added 10L AdBlue to diesel tank, didn't realize, drove 5km before engine warning lights appeared.

      • Towed to workshop
      • Complete fuel system drainage
      • Fuel pump replacement required
      • Four injectors needed cleaning
      • Multiple sensors replaced
      • Vehicle in shop for 3 days
      • Total cost: $4,200

      Key lesson: Immediate action and not starting the engine saved $3,650 in repairs.

      Modern Diesel Vehicles and AdBlue

      Vehicles Commonly Affected

      Most diesel vehicles from 2015 onwards have AdBlue/DEF systems:

      • Toyota: Hilux, LandCruiser, Prado, Fortuner (2015+)
      • Ford: Ranger, Everest (2015+)
      • Mazda: BT-50 (2015+)
      • Mitsubishi: Triton, Pajero Sport (2015+)
      • Volkswagen: Amarok, Tiguan diesel (2012+)
      • Mercedes-Benz: All diesel models (2015+)
      • BMW: All diesel models (2015+)
      • Isuzu: D-Max, MU-X (2015+)

      Euro 6 and ADR 80/03 Standards

      Australian emission standards require AdBlue systems:

      • All new diesel vehicles must meet strict NOx emission limits
      • SCR systems with AdBlue are the primary solution
      • More vehicles will have AdBlue as standards tighten
      • Understanding your vehicle's system is increasingly important

      What Professional Help Provides

      Specialized Equipment

      Professional AdBlue contamination removal requires specific tools:

      • Complete drainage systems: Remove every drop of contaminated fuel
      • Flushing equipment: Clean fuel lines thoroughly
      • Pressure testing: Verify system integrity
      • Diagnostic tools: Check for sensor and component damage

      Expert Knowledge

      • Understanding of diesel fuel system complexity
      • Recognition of AdBlue crystallization risks
      • Knowledge of which components are most vulnerable
      • Experience with various vehicle makes and models

      Insurance Documentation

      • Detailed invoices for insurance claims
      • Professional service records
      • Documentation of all work performed

      Rapid Fuel Rescue Perth: AdBlue Contamination Experts

      At Rapid Fuel Rescue, we regularly handle AdBlue contamination incidents across Perth:

      • Fast response: 30-60 minutes across Perth metro
      • 24/7 availability: Help when you need it most
      • Complete service: Full drainage, flush, and refill
      • Transparent pricing: Upfront quotes with no hidden fees
      • Experienced technician: 10+ years diesel system experience
      • Mobile service: We come to you - no towing needed
      • Insurance documentation: Detailed invoices provided

      Conclusion: Act Fast on AdBlue Contamination

      Putting AdBlue in your diesel tank is a critical mistake, but immediate action can prevent catastrophic damage:

      Key takeaways:

      • DO NOT start the engine if you realize the mistake
      • Call professional help immediately
      • Mobile fuel rescue services save time and money
      • Caught early: $450-$700; if engine started: $2,500-$8,500+
      • AdBlue and diesel are chemically incompatible
      • Prevention is simple: check labels and cap colors
      • Most modern diesels (2015+) have separate AdBlue systems

      Need Emergency Help?

      If you've accidentally put AdBlue in your diesel tank anywhere in Perth or Western Australia, don't panic - but do act immediately.

      Call Rapid Fuel Rescue at 0416 692 022 right now.

      We provide fast, professional AdBlue contamination removal 24/7 across Perth.

      The urea in the solution will not burn in the same way that diesel does, and this can cause irregular fuel combustion. The urea in AdBlue is highly corrosive, and exposure to metal components can cause rust, corrosion, and blockages. Long-term effects can include fouling of the diesel particulate filter, reduced engine performance, and potential engine seizure.

      If you find yourself in the unfortunate position of having added AdBlue to your diesel tank, it is crucial to act quickly and seek professional help.

      The SCR system relies on AdBlue to break down harmful nitrogen oxide (NOx) emissions, and introducing an inappropriate mixture of diesel and AdBlue can disrupt this process. At the Servo

      • Don't rush when refilling
      • Pay attention, especially if tired or distracted
      • If buying AdBlue in bottles, read labels carefully
      • Never force a nozzle that doesn't fit easily

      5.

      Replacing the fuel pump and injectors can be a costly and time-consuming repair, often requiring the replacement of the entire fuel system.

      Reduced Engine Performance

      When AdBlue is added to a diesel tank, the engine may experience a significant decrease in performance. In vielen Fällen lässt sich der Motor gar nicht erst starten, insbesondere wenn die Tankfüllung mit AdBlue kontaminiert ist.

      Diesel engines rely on precise fuel injection for optimal performance, and the addition of AdBlue can cause a number of issues. The immediate effects include corrosion of the fuel system, injector malfunctions, and exhaust system blockages. Taking care to ensure that AdBlue and diesel fuel are never mixed can save you from a lot of trouble in the future.

      Related Topics:

    AdBlue in Diesel Tank: What to Do & How to Fix This Critical Mistake

    AdBlue in Diesel Tank: A Critical Mistake

    Accidentally putting AdBlue (also known as Diesel Exhaust Fluid or DEF) into your diesel fuel tank is a serious mistake that requires immediate attention.

    Mixing diesel and AdBlue is nothing new. Since AdBlue is not a fuel source, it can disrupt the engine’s combustion process. Communication for Shared Vehicles

    • Educate all drivers about both filler locations
    • Place reminder stickers near fuel door if needed
    • Brief new drivers on proper refilling procedures
    • Keep owner's manual accessible

    AdBlue in Diesel vs.

    Hence, storing AdBlue in a location not exposed to freezing temperatures is recommended. Like other wrong fuel Australia incidents, quick action is crucial to minimize damage and costs.

    What is AdBlue and Why is it Separate?

    Understanding AdBlue (DEF)

    AdBlue is a liquid solution made of 32.5% high-purity urea and 67.5% deionized water.

    However, the presence of AdBlue in the diesel fuel can cause fouling of the DPF. When AdBlue is introduced into the combustion process, it will not burn cleanly and may produce excess soot or other contaminants that can clog the filter. Additionally, store AdBlue appropriately since exposure to high temperatures and sunlight can cause it to deteriorate and lose effectiveness.


    Incorrect Dosing


    AdBlue dosage is a critical factor in reducing NOx emissions.

    By draining and flushing the system immediately, you can prevent major damage and avoid costly repairs. This can result in a failure of the fuel pump and other parts of the system, leading to costly repairs.

    Injection System Malfunctions

    When AdBlue is introduced into the diesel tank, it can interfere with the fuel injection system.

    It’s not going to start!

    Additionally, the urea is known to be very corrosive for the fuel system’s seals and pipes. Diesel fuel systems are designed to handle fuel and not urea-based solutions, which can result in clogging of fuel injectors and damage to critical engine components. However, the effects can be severe and cause lasting damage to various parts of the engine and fuel system.

    Clogging and Corrosion in the Fuel System

    AdBlue is not meant to be mixed with diesel fuel, and when the two come into contact, it can cause significant damage to the fuel system.

    Call us now - we're here to help.

    The urea can cause the fuel to become thick and sticky, which may damage various seals, valves, and components inside the engine. This article will provide a detailed and clear explanation of the effects of adding AdBlue to a diesel tank, covering what happens immediately, how it impacts the engine and components, and the proper steps to take if the mistake occurs.

    What is AdBlue?

    AdBlue is a high-purity urea solution used in vehicles equipped with SCR systems.


    Freezing at Low Temperatures


    AdBlue tends to freeze at low temperatures, which can cause issues with dosing. However, these issues can be avoided by adhering to the manufacturers’ recommendations and guidelines and ensuring proper AdBlue in diesel tank storage, handling, and usage.


    Accidentally put AdBlue in your diesel tank? Fuel Fixer specializes in the safe and efficient removal of AdBlue from diesel tanks, helping you avoid costly damage to your vehicle.

    This synthetic urea, combined with deionized water, is what we now call “AdBlue.”


    While AdBlue is not yet universally available, it is being used in newer diesel vehicles equipped with SCR technology to help meet stricter emission standards.


    Problems That Arise When Using Adblue


    Contamination


    AdBlue in diesel tank is a delicate liquid that can easily become contaminated if it comes into contact with other substances, such as diesel fuel or oil.

    Instead, follow these steps:

    Call a Professional: Contact a mechanic or roadside assistance immediately. You’ll need to have the fuel tank drained out to flush out the fuel filter and lines so that the compatible fuel can return to the vehicle’s fuel tank and your car can run like before.

    In some instances, after the whole process is over, you may have to replace the fuel filter. All this will simply be too difficult for the average Joe, so it’d do you good to call a reputed technician.

    Here is everything you need to know about AdBlue, and what you should do if you mistakenly pour Adblue in your diesel tank.

    What is AdBlue?

    AdBlue is a solution made from a mixture of water and urea, designed for use in diesel engines to reduce nitrogen oxide (NOx) emissions, which contribute to air pollution and have harmful effects on human health and the environment.


    AdBlue works by converting harmful NOx emissions into harmless nitrogen and water vapor.

    AdBlue is not compatible with many materials and metals such as steel, brass, zinc, aluminium and cast iron and will end up eroding the components and pipework. 

    Remove AdBlue in diesel tank!

    It is highly recommended that you contact a fuel technician to safely remove AdBlue from your vehicle’s diesel tank without causing further damage.

    Over time, the buildup of AdBlue within the system can cause the pump to seize, leading to a complete breakdown of the fuel delivery system. To avoid confusion, AdBlue containers are usually marked with a distinct color, typically blue, while diesel fuel is usually dispensed from a green or black nozzle.

    Immediate Effects of AdBlue in a Diesel Tank

    If AdBlue is added to the diesel tank, immediate consequences may not be visible right away.

    Did not start engine. This can lead to a failure of the SCR system, which may trigger warning lights or engine error codes, and ultimately require expensive repairs.

    Long-Term Effects of AdBlue in a Diesel Tank

    While the immediate consequences of adding AdBlue to a diesel tank may seem manageable, the long-term effects are more severe and costly.

    The purpose of AdBlue is to break down these NOx emissions into harmless nitrogen and water vapor, making it a crucial part of meeting environmental regulations.

    AdBlue is stored in a separate tank that is specifically designed for the solution, usually near the fuel tank. Dies kann frustrierend sein, dient jedoch dem Schutz des Fahrzeugs und ist unbedenklich, wenn man die richtigen Vorsichtsmaßnahmen trifft.

    For instance, if the AdBlue tank runs dry, the engine may go into a reduced power mode, and in severe cases, it may not start at all. Incorrect dosing can lead to increased emissions and potential damage to the engine.


    To ensure correct dosing, use an AdBlue system that is calibrated and maintained correctly. It is important to have the tank drained and flushed as soon as possible.

    Do Not Drive the Vehicle: Do not attempt to drive the vehicle, as this will only worsen the damage.

    Tank and System Flushing: A professional mechanic will likely need to drain the tank completely and flush the entire fuel system.

    Other Wrong Fuel Mistakes

    Comparison of Common Mistakes

    MistakeSeverityTypical Cost
    AdBlue in diesel tankCRITICAL$450-$8,500+
    Petrol in diesel engineCRITICAL$400-$6,000+
    Diesel in petrol engineSERIOUS$350-$600
    Diesel in AdBlue tankSERIOUS$400-$1,500

    What Makes AdBlue Contamination Unique

    • Water-based contamination: Different cleanup requirements than fuel-only mistakes
    • Crystallization risk: AdBlue can form solid crystals that block components
    • Corrosion potential: Not all fuel system components handle water-based fluids well
    • Detection difficulty: May not show symptoms immediately

    Insurance and AdBlue Contamination

    Does Insurance Cover It?

    Coverage for AdBlue in diesel tank varies by policy:

    • Some comprehensive policies: Include "misfuelling" coverage
    • Optional add-ons: May be available with some insurers
    • Excess payment: Usually $400-$700 if covered
    • Check your PDS: Review Product Disclosure Statement for specifics

    Making a Claim

    If your insurance covers misfuelling incidents:

    1. Contact your insurer immediately to confirm coverage
    2. Get authorization before arranging repairs
    3. Keep all receipts and documentation
    4. Professional service invoices are essential
    5. Photograph the AdBlue bottle or pump if possible

    Diesel in AdBlue Tank (The Reverse Problem)

    What Happens

    While less common, putting diesel in the AdBlue tank is also serious:

    • SCR system contamination: Diesel damages emission control system
    • Sensor damage: DEF quality sensors can fail
    • Injector clogging: DEF injectors blocked by diesel
    • Catalyst damage: SCR catalyst can be contaminated
    • Expensive repairs: $400-$1,500 for tank flush, more if system damaged

    Symptoms

    • DEF/AdBlue warning lights
    • Engine derate (reduced power)
    • Emissions system errors
    • Vehicle may limit speed or prevent restart

    Real-World Case Studies

    Case 1: Caught Immediately - $550 Cost

    Perth driver filling Hilux at servo, realized immediately after adding 5L AdBlue to diesel tank.

    From contamination to incorrect dispensing, the potential issues are numerous. Understand Your Vehicle's Systems

    • Know where both filler caps are located
    • Understand diesel cap is usually larger (black or green)
    • AdBlue cap is smaller and typically blue
    • Read your owner's manual for cap locations

    2. In this case, refilling the AdBlue tank as soon as possible is important to ensure the proper functioning of the vehicle’s emissions system.

    Sollten Sie Verdacht auf eine Fehlbetankung haben, ist es ratsam, weitere Startversuche zu unterlassen und sofort einen Fachmann zu kontaktieren, um teure Folgeschäden zu vermeiden, besonders wenn super plus getankt wurde.

    AdBlue in Diesel Tank? Label Recognition

    Filler Cap Indicators:

    • Diesel: "DIESEL FUEL ONLY" label, larger opening, black or green cap
    • AdBlue: "AdBlue ONLY" or "DEF ONLY" label, smaller opening, blue cap
    • Size difference: AdBlue nozzles are smaller to prevent diesel nozzle insertion

    4.

    While AdBlue is essential for modern diesel vehicles with Selective Catalytic Reduction (SCR) systems, it should never mix with diesel fuel in the tank.

    This comprehensive guide explains what happens when AdBlue enters your diesel tank, the immediate steps you must take, potential damage, repair costs, and how to prevent this costly mistake.

    Larger vehicles also generally position the diesel and Adblue fill caps far apart from each other. Our experienced technician will arrive with all necessary equipment to completely drain and flush your fuel system, getting you safely back on the road.

    Remember: every minute counts. Moderne Dieselfahrzeuge sind oft mit Schutzmechanismen ausgestattet, die den Motor bei erkannten Problemen nicht anspringen lassen.

    Starting the engine will circulate the AdBlue through the fuel system, increasing the potential for damage to critical components. The first step is to avoid starting the engine. The difference between a $550 fix and a $4,000+ repair bill is simply not starting your engine. It is composed of 32.5% urea and 67.5% deionized water. When AdBlue enters the diesel fuel tank, it will eventually make its way through the combustion process and into the exhaust system.

    AdBlue in Diesel getankt? Prolonged exposure of diesel fuel system components to AdBlue can result in lasting damage to the engine and associated systems.

    Damaged Fuel Pump and Injectors

    The corrosion caused by the urea solution in AdBlue can severely damage the fuel pump and injectors. This standard guarantees that AdBlue is pure and does not contain pollutants.

    Regular checks should be performed to ensure the system is functioning correctly and the correct amount of AdBlue is being injected into the exhaust system.


    You should also use the appropriate AdBlue in diesel tank size for the vehicle and ensure the tank is kept topped up to prevent the engine from running without AdBlue, which can cause damage.

    This occurs through a chemical reaction in the catalytic converter, a process known as Selective Catalytic Reduction (SCR).


    The automotive industry recognized the need to mitigate the environmental impact of diesel engines, which are known for emitting high levels of NOx, a dangerous pollutant.


    The solution was to introduce a small amount of urea into the diesel exhaust system, initiating a chemical reaction that converts NOx into nitrogen and water vapor.

    In some cases, it may even lead to injector blockages and reduced efficiency, which will impact engine performance.

    Exhaust System Issues

    The exhaust system of a diesel engine is designed to handle specific emissions and gases, but it is not prepared to handle AdBlue. Wird der Startvorgang dennoch eingeleitet, kann es zu ungewöhnlichen Geräuschen, Ruckeln oder sofortigem Absterben des Motors kommen.

    As a result, the engine may run inefficiently, consuming more fuel while producing lower power output. Driving without AdBlue can cause the vehicle to go into limp mode, which limits the engine’s power and speed.

    Which Cars Require AdBlue?

    If you have a car that is registered after 2015, chances are you own a vehicle which uses AdBlue to minimize emissions.