Llanllyfni: AdBlue in the Diesel Tank? Leave It Off
Motor off, ignition off: that is how you begin if AdBlue has gone into your diesel tank. Water with urea dissolved in it: that's AdBlue. The harm begins once it is pulled through the pump — it will not burn, and it won't combine with diesel. In Llanllyfni, AdBlue in a diesel tank caught before the engine runs usually comes down to a drain and a thorough flush, just where the car is. Before anything, call us on 0333 366 0103.
Llanllyfni, AdBlue in your diesel tank: what to do straight away
Things to do:
- Remove the keys, which prevents someone turning the power on.
- If you're anywhere near moving traffic, put the hazards on.
- The empty bottle or your receipt tells us the fluid and the quantity, so do not bin it out.
- Give us a postcode starting LL54 6, or whatever street lies nearest, and our van finds you straight — so ring from wherever you stand.
Not to do:
- Do not start the engine, even for a moment to move the car.
- Switching the key to ignition by itself starts the pump running on many diesels. Skip it.
- AdBlue doesn't mix in diesel — it separates out — so adding more diesel won't weaken it.
- Any driving at all is to be avoided, including a short way along Lôn Ddŵr.
- No draining it yourself, either, at the roadside.
Ask the people behind the counter to help you move the car off the island if you're on a forecourt around Llanllyfni, whether it's the the nearest petrol station or somewhere else. If you are on your own drive, leave it just where it is.
AdBlue in a diesel tank, and what it does there
Not your engine but your exhaust is where AdBlue is meant to go. Its own tank keeps it, and from there it's sprayed into the exhaust, where it cleans the gas. Nothing in a fuel pump is designed for this fluid — and no part of that was intended to travel through one.
Fuel mixes; AdBlue, once tipped in, won't. The behaviour is nothing like diesel's. Denser than diesel, it sinks and pools underneath it — the same place the intake draws from. A motor topped up on a driveway in Talysarn overnight and left unstarted counts as the straightforward case. No pump has sucked the AdBlue up so far — though once the engine turns, that is what is pulled first, directly from the bottom of the tank.
Once it's pulled in, the harm takes two forms. As its water goes, the urea left behind crystallises, and the crystals block filters and settle in fine passages. And it is corrosive to some of the metals a fuel system is made from, so it keeps working on the parts it reaches for as long as it remains there. A motor left standing in Llanllyfni with AdBlue already in its lines is worse by the morning; one with AdBlue only in its tank is not. Diesel protects the high-pressure pump and every injector as it flows; water gives none of that, and that is a second kind of harm.
Why AdBlue in a diesel is commonly more major than petrol
A fault of thinned fuel is what you get after fuelling a diesel with petrol from the Independent. It mixes with your diesel, and whilst it is inside your tank it causes no damage; the harm comes from running the motor on it.
AdBlue in a diesel is a problem of the wrong substance altogether. Since it doesn't burn, running it through is not an option. Deposits and corrosion stay after the next fill, and AdBlue splits again from your diesel, so watering it won't work. Hence the flush counts more, and trying the engine "to see" does more harm here than almost any other mistake — in Pontllyfni or the heart of Llanllyfni equally.
The good news is the same as with petrol. Wherever around Gwynedd your vehicle has stopped, an unstarted motor leaves the AdBlue yet inside the tank: the simplest bit of any fuel system to clear.
Llanllyfni: how AdBlue ends up in a diesel tank
In dim light, two caps side by side — the AdBlue cap and the diesel one, occasionally under one flap — may look the same. Nobody intends it; plenty of designs allow it. It usually happens at home, from a bottle bought on the journey home, rather than at the filling station.
The ways it takes place are few and familiar. A warning light comes on during the school run, and the top-up takes place in a hurry outside the local primary school. Someone pours the bottle in outside their house, just off Bryn Rhedyw, as the day ends. One more pattern: darkness, the car park outside the pub in the village, and a driver opening that flap the first time.
The least known vehicles get it the most — hire cars, new cars, fleet ones, and the spare motor of a home with one of each fuel types. Wherever around Gwynedd, Llanllyfni as well, the slip doesn't change, and nor does the first response: keep it switched off.
Already started the motor with AdBlue in the diesel tank in Llanllyfni?
Then the AdBlue has left your tank. The filter and pipework have had it pulled through, and any running carries it on to the injection pump and every injector.
You may see your engine running unevenly, smoking, losing power, showing warning lights or cutting out, possibly on the way back from Coch y Rhwd or halfway across Llanllyfni. Pull over when safe. Switch off. Leave the car off rather than restarting it to check. With each start, more of it is pulled through.
Llanllyfni lies over 50 miles from the Moreton Spur; if you were on it, exit at the next junction and pull up somewhere safe rather than carrying on.
Distance matters: each mile pushes the AdBlue deeper in, and so heading for Bangor, under 15 miles away, makes a much larger job than hopping across Llanllyfni to the car park by Eglwys St Rhedyw. Roughly how far had it come? Tell us.
Wherever the car came to a halt is where all of it gets done, even with more to rinse out once your engine has been run. Permanent damage is very rare if it is noticed soon.
Llanllyfni: how AdBlue is cleared from a diesel
The car stays where it is, whether that's a street beside Capel Salem, a drive, a lay-by or a forecourt in Llanllyfni, and our van comes to it. The job depends on three replies, and our engineers ask for before all else — which fluid went in, the quantity, and whether the engine has turned over.
Then your tank is cleared where the car waits, and so the tainted fuel and the AdBlue come out together. The system is rinsed thoroughly, which matters more with AdBlue than with petrol, since what it leaves behind does not rinse out on its own. The fuel filter is flushed, or replaced where it needs to be; clean diesel goes in; and the car is tested. About half an hour once we arrive is typical for most jobs where the motor hasn't run. Quiet enough to use outside a house at night, and safe on a working forecourt, our pumps are explosion-proof.
The last step is to bleed the fuel system on fresh diesel. Whether it's a parking space by Criccieth or a driveway in Llanllyfni, that is where our engineers start the car and you set off. We confirm it runs correctly on fresh diesel before leaving. As the job is done in full where the car is, a garage never comes into it. You receive a VAT invoice and an engineer report later on, which is what insurers ask for.
About Llanllyfni itself
Llanllyfni is a small village in northwest Wales, situated near the coast and approximately 14 miles from Bangor. Llanllyfni has a population of around 669 people and is characterized by its terraced housing. Llanllyfni sits at an elevation of 102 metres, overlooking the surrounding countryside. Llanllyfni is close to nearby villages such as Nebo, Penygroes, and Nasareth.
AdBlue drains across Llanllyfni and Gwynedd
AdBlue jobs in Llanllyfni go to vans that serve the towns around it — Nebo, Penygroes as well as Nasareth — and much of Gwynedd further out, throughout LL postcodes. Assuming doesn't help by a border or anywhere hard to pin down; phone and ask.
Llanllyfni is a coastal village, and an on-site drain suits it: whether your car is on a home drive, a residential street, a car park or a forecourt, we drain it where it is, so it never needs to be moved to us.
Llanllyfni: what AdBlue in a diesel tank costs to fix
Because each callouts differ, a flat price would not be fair. Three things change the cost: whether your engine has been running and for how long, how much AdBlue went in, and where your car is. That last one comes down to whether a van can reach it safely, and an open drive is easier than a tight gap behind Caer Engan Hillfort.
Before a quote, not afterwards, every call from Llanllyfni opens with three checks: the fuel, the amount, and if the engine ran. Their replies narrow the range down to one number.
You get that price on the phone, before anybody sets off, and you pay on the day, by card or over the phone, with nothing upfront. Look at your policy while we are on the way: plenty carry misfuelling cover.
Next to the vehicle around Llanllyfni, right now?
Right now, the most helpful thing to do with the car is to leave it. Ignition off, motor off, keys out. Petrol in Diesel handles the rest, in Llanllyfni or anywhere within Gwynedd, after you ring 0333 366 0103 to say it was AdBlue, roughly how big an amount, and if the engine ran.