What to Do If You Accidentally Put AdBlue in Your Diesel Tank

Accidentally putting AdBlue in your diesel tank is a serious mistake that can cause significant damage to your vehicle. If this has happened to you, it’s crucial to act quickly and know the right steps to take. This guide will walk you through what AdBlue is, why it should never go into your diesel tank, and exactly what to do if you find yourself in this situation. You’ll also find practical advice on how to avoid this costly error in the future.

put adblue in diesel tank

What Is AdBlue and Why It Should Not Go in the Diesel Tank

AdBlue is a liquid solution made of urea and deionized water. It is used in diesel vehicles equipped with Selective Catalytic Reduction (SCR) systems to reduce harmful nitrogen oxide emissions. AdBlue is stored in a separate tank and injected into the exhaust system, not the fuel tank.

Putting AdBlue into the diesel tank causes contamination because it is not a fuel and has chemical properties that can damage the engine and fuel system components. Unlike diesel, AdBlue is corrosive to some parts of the fuel system and can cause blockages, corrosion, and failure of fuel injectors and pumps.

Signs You May Have Put AdBlue in the Diesel Tank

If you accidentally fill your diesel tank with AdBlue, you might notice some warning signs quickly:

• Engine warning lights on the dashboard

• Difficulty starting the engine or the engine failing to start

• Rough engine running or stalling

• Strange noises from the fuel pump or injectors

• Fuel smell that is unusual or chemical-like

  
  

If you experience any of these symptoms after refueling, stop driving immediately to prevent further damage.

Immediate Steps to Take If You Put AdBlue in the Diesel Tank

1. Do Not Start the Engine

   If you realize the mistake before starting your vehicle, do not turn on the ignition. Starting the engine will circulate the AdBlue through the fuel system, increasing the damage.

   
   

2. Call a Wrong Fuel Emergency Service

   Contact a professional wrong fuel emergency service immediately. For example, you can call 07771 029122 for expert assistance. These services specialize in handling fuel contamination and can provide advice or send a technician to drain and clean your fuel system.

   
   

3. Arrange for Fuel Tank Draining and Cleaning

   The contaminated fuel must be completely drained from the tank. The fuel lines, filters, and injectors may also need cleaning or replacement depending on the extent of contamination.

   
   

What Happens If You Drive With AdBlue in the Diesel Tank

Driving with AdBlue in your diesel tank can cause severe damage:

• Fuel Pump Damage: AdBlue can corrode the fuel pump, leading to failure.

• Injector Blockage: The chemical can clog fuel injectors, causing poor engine performance.

• Engine Damage: Contaminated fuel can cause misfires, stalling, and long-term engine damage.

• Costly Repairs: Repairing or replacing damaged components can be expensive, often costing thousands of pounds.

  
  

Stopping the vehicle immediately and seeking professional help reduces the risk of costly repairs.

How Professionals Handle AdBlue Contamination

When a wrong fuel emergency service arrives, they typically follow these steps:

• Assess the Situation: Confirm the type and amount of contamination.

• Drain the Fuel Tank: Remove all contaminated fuel and AdBlue mixture.

• Flush the Fuel System: Clean fuel lines, filters, and injectors to remove residues.

• Refill with Clean Diesel: Once cleaned, refill the tank with fresh diesel.

• Test the Vehicle: Start the engine and check for any remaining issues.

  
  

This process ensures your vehicle is safe to drive again.

Preventing AdBlue and Diesel Mix-Ups

Avoiding this mistake is better than fixing it. Here are some tips to prevent putting AdBlue in the diesel tank:

• Know Your Vehicle: Familiarize yourself with the location of the diesel and AdBlue filler caps.

• Label the Caps: Use clear labels or stickers to distinguish between the diesel and AdBlue tanks.

• Refuel Carefully: Always double-check the fuel type before filling.

• Ask for Help: If unsure, ask the fuel station attendant to assist.

• Educate Drivers: If multiple people use the vehicle, make sure everyone knows the difference.

  
  

What to Do If You Put Diesel in the AdBlue Tank

While this post focuses on AdBlue in the diesel tank, the reverse mistake—putting diesel in the AdBlue tank—also causes problems. Diesel contaminates the SCR system and can cause costly repairs. If this happens, do not start the engine and seek professional help immediately.

When to Call 07771 029122 for Wrong Fuel Emergency

If you accidentally put AdBlue in your diesel tank, calling a wrong fuel emergency service like 07771 029122 is one of the best actions you can take. They provide:

• Fast response to prevent further damage

• Expert advice on what to do next

• On-site fuel draining and cleaning

• Support with insurance claims if needed

  
  

Having this number saved can save you time and money in an emergency.

Summary and Next Steps

Putting AdBlue in your diesel tank is a costly mistake but acting quickly can minimize damage. If this happens:

• Do not start your engine

• Call a wrong fuel emergency service such as 07771 029122

• Arrange for professional draining and cleaning

• Avoid driving the vehicle until it is safe

  
  

Taking these steps protects your vehicle and wallet. To prevent this error, always double-check fuel types and educate anyone who uses your vehicle. If you need help, professional services are ready to assist you promptly.