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Fuel Fixer engineer draining an AdBlue contaminated diesel tank at the roadside Tap to call

AdBlue in your diesel tank? The fillers sit inches apart.

It happens to careful drivers. The smart move is to ring a misfuel engineer before the urea starts to crystallise.

Call now01 506 0386
Callout from €99
Answered 24 hours, 7 days · engineer to you in about 46 minutes · wherever you are
Specialists since 2009

The specialists the trade calls

AdBlue and wrong fuel is the entire business at Fuel Fixer, and has been since 2009. Our engineers are local to your region and know these roads, so when you ring you are talking to somebody who can actually get to you rather than a call centre. The garages call us. The main dealers call us. The recovery firms and the insurers call us. You can call us direct and skip the middleman, the mark-up and the wait.

  • Real engineers, not a call centre. Based across every county, answering the phone day or night.
  • Callout from €99. You know the price on the call, before anyone sets off. No meter running, no surprises on arrival.
  • No tow, no garage bill. Sorted where you stand, usually inside the hour. VAT invoice and engine report included.
  • Licensed, compliant disposal. Nothing we remove is dumped. It is held securely and re-refined back into the supply chain.
Call now01 506 0386

Why AdBlue is its own kind of problem

AdBlue is not a fuel. It is roughly a third urea and two thirds deionised water, made to be dosed into the exhaust, never into the tank. In a diesel fuel system it behaves nothing like a petrol misfuel.

  • It neither burns nor lubricates. A diesel high-pressure pump is lubricated by the fuel passing through it. AdBlue offers neither combustion nor protection.
  • It crystallises as it dries. Once the water evaporates the urea forms hard deposits in the tank, lines, filter, pump and injectors, and crystallised urea is far harder to shift than liquid.
  • It attacks the wrong metals. Urea solution corrodes aluminium, copper and some steels used in fuel systems. Contact time is the one variable you can still control.
  • Diesel in the AdBlue tank is the same call. That contaminates the SCR dosing system instead. Do not start it either way.

The questions everyone asks

I have put AdBlue in my diesel tank, what should I do?
Do not start the engine and do not turn the key. AdBlue is a urea solution, not a fuel, and it is corrosive to the metals in a diesel fuel system. Call Fuel Fixer on 01 506 0386. An engineer comes to you, drains the tank, flushes the lines and filter and refills with clean diesel, usually at the roadside. Callout from 99 euro.
Is AdBlue in the diesel tank worse than petrol in a diesel?
It is a different and often more serious problem. Petrol thins the lubrication a diesel pump relies on. AdBlue neither burns nor lubricates, and as the water content evaporates the urea crystallises inside the tank, lines, pump and injectors. Crystallised urea is very hard to remove once formed, which is why speed matters more here than with almost any other misfuel.
Why is it so easy to put AdBlue in the diesel tank?
On many cars and vans the AdBlue filler sits directly beside the diesel filler under the same flap, sometimes only inches apart and with a similar cap. It happens to careful drivers, including professional ones, and it is one of the most common calls we take.
I put diesel in the AdBlue tank instead. Is that a problem?
Yes, and it needs the same urgency. Diesel in the AdBlue tank contaminates the SCR dosing system, and running the vehicle pushes diesel through the dosing module towards the injector and catalyst. Do not start it, and tell us which way round it went.
How much does it cost?
Callout starts from 99 euro and you are told the price on the phone before an engineer sets off. It depends on where you are, what you drive and how much needs removing. No tow, no garage bill, no dealer mark-up, and a VAT invoice and engine report are included.
Do you cover the whole country?
Yes. Engineers based across every county, with an average arrival of about 46 minutes. Dublin, Cork, Galway, Limerick, Waterford, Drogheda, Dundalk, Bray, Navan, Kilkenny, Sligo, Athlone, Ennis, Tralee, Wexford and everywhere between.

AdBlue in the tank? Do not start it. Ring us.

Callout from €99, quoted before we set off. One call to an engineer and it is handled.

Call now01 506 0386
Call now·01 506 0386
Call now · 01 506 0386