AdBlue in the Diesel Tank in Llanfwrog? Keep It Switched Off
If AdBlue has gone into the diesel tank, keep the engine off then leave the ignition off. AdBlue is urea mixed in water. Unlike fuel, it neither burns nor mixes, and nothing starts until your motor sucks it round. If the engine has not run yet, AdBlue in a diesel tank is normally drained and carefully purged where the car sits around Llanfwrog. Before anything, phone us on 0333 366 0103.
Those opening minutes: AdBlue in the diesel tank in Llanfwrog
Do these:
- Remove your keys, and that prevents anyone switching the electrics on.
- Hazards on, if moving traffic is anywhere close.
- Which product, and roughly how much volume? Hang on to the bottle or the receipt, and our engineers can know.
- Call just where you are. Say a LL15 2 postcode or the closest street sign, and nobody has to hunt for you.
Never do these:
- Do not start your engine, even for a moment to shift the car.
- Many diesels run their pump the instant your ignition goes on, and so leave the vehicle off.
- Pouring in extra diesel doesn't help: AdBlue settles out instead of thinning.
- Never drive the vehicle anywhere, not even a short stretch up Cerrig Street.
- Do not try to drain it yourself at the roadside.
The staff on duty at any Llanfwrog filling station — the Dyffryn Service Station included — will normally help pushing it clear if you ask. At your own driveway, do not touch it at all.
AdBlue in a diesel tank, and what it does there
AdBlue is made for the exhaust, not your motor. It goes into its own tank and is sprayed into the exhaust gas to clean it. A fuel pump is not designed to take it, and AdBlue was never intended to travel through one.
Fuel blends; AdBlue, once poured in, won't. Its behaviour is not at all like fuel's. The intake takes fuel from the lowest part of the tank, and that is precisely where AdBlue settles: being heavier than diesel, it sinks. When your pump runs, the AdBlue is top of the list to be pulled through. Before then it waits beneath the diesel, and that is how a vehicle filled in Rhewl last night and never switched on remains the simple case, as long as nobody touches the key.
It causes two kinds of damage from there. Crystals and corrosion. As the water evaporates, it leaves urea that hardens in filter elements and narrow passages; meanwhile, because it eats at some metals, each part it touches keeps suffering for as long as it stays in there. A motor left sitting in Llanfwrog with AdBlue already in its lines is worse by the morning; one with AdBlue just in its tank is not. Water lubricates nothing. The high-pressure pump and each injector need diesel running past them, and so the water part damages them in its own right.
Petrol or AdBlue in a diesel: why AdBlue is frequently worse
A fault of thinned fuel is what you end up with after filling a diesel with petrol at the Esso. Mixed into the diesel and sitting unused, it is no threat for now; using your motor is the damage.
With AdBlue in a diesel, the liquid as such is simply the wrong one. Because it doesn't burn, running it through is not an option. It doesn't stay mixed, so it cannot be weakened. And crystals and corrosion do not wash out with the next tank of fuel. That's why the flush matters more with AdBlue than with petrol, and why starting the engine "to see" costs more here than almost anywhere else, whether the vehicle is in Bontuchel or the middle of Llanfwrog.
The same good news holds as with petrol. If the engine hasn't run, the AdBlue is still inside your tank, and your tank is the quickest part of a fuel system to clear, wherever across Denbighshire the car is sitting.
Llanfwrog: how AdBlue ends up in a diesel tank
Many vehicles put the AdBlue filler alongside the diesel one, occasionally under one flap, and after dark the two can look the same. Nobody means it. Mostly it is never the forecourt: a driver picks up a container driving home and tips it in outside the house.
The ways it takes place are few and familiar. Halfway through the morning drop-off, the dashboard warns, and outside the local primary school the top-up is rushed. In the evening, a container goes in on a driveway close to B5105. One more pattern: dim light, a pub car park by Farmers Arms, and a driver opening that flap the first time.
Hired motors, new vehicles, fleet vehicles, or the second vehicle in a family with both fuels: the least familiar cars get it most. Wherever you are in Llanfwrog or the remainder of Denbighshire, it's the same slip and the same first answer: leave the car off.
AdBlue in the diesel tank around Llanfwrog, and the engine started?
If so, the AdBlue is no longer inside the tank. With any running, it travels to the injection pump and every injector, having passed via the filter and lines.
You may notice your engine running unevenly, smoking, losing power, showing warning lights or cutting out, maybe on the way back from Ruthin Town F.C. or halfway across Llanfwrog. Once you safely can, stop then turn everything off — without restarting to see. More of that is pulled through with each start.
On the M56, under 25 miles from Llanfwrog, the next junction is where to leave, and somewhere safe is where to stop — not driving on.
Mileage matters: every mile carries the AdBlue further in, and so driving for St Asaph, under 15 miles away, gives a far larger job than crossing Llanfwrog to the car park by St Mwrog & St Mary. Tell us roughly how far it had come.
Wherever the vehicle came to a halt is where all of it gets done, even with more to rinse out once the motor has been run. Very rarely does it leave lasting damage if it is noticed early.
Llanfwrog: how AdBlue is cleared from a diesel
A road by Our Lady Help of Christians, a driveway, a layby or a filling station: wherever your car has stopped in Llanfwrog, we travel to it. The job depends on three answers, which we ask for first — what got in, the quantity, and if your engine has run.
Next, draining your tank on the spot removes the polluted diesel and the AdBlue in one go. Your system is flushed thoroughly, which matters more with AdBlue than with petrol, because what it leaves behind doesn't rinse out on its own. Your filter is cleaned, or replaced where it needs to be; clean diesel goes in; and the vehicle is tested. About half an hour on site is typical for most jobs where your motor hasn't run. Low-noise enough to use outside a house at night, and fine on a working forecourt, the pumps are explosion-proof.
The last step is to bleed the system on clean diesel. Whether it is a parking space by Penyffordd or a drive in Llanfwrog, that is where our engineers fire it up and you drive off. It is checked on clean diesel to confirm it runs smoothly before we go. Our engineers do it all wherever your car has stopped, and it never needs to be taken to a garage. You receive a VAT invoice and an engineer report afterwards, which is what insurers want.
About Llanfwrog, for a moment
Llanfwrog is a small village in Denbighshire, situated on the banks of a river at an elevation of 78 metres. Llanfwrog has a mix of housing types, but terraced houses are predominant, and it is located near other villages such as Galltegfa and Efenechtyd. Llanfwrog is close to the city of St Asaph, which is about 11 miles away, and is part of the wider community in the area. Llanfwrog has a population of around 541 people, according to approximate figures.
AdBlue drains in Llanfwrog and across Denbighshire
Over the LL postcode area, the vans answering AdBlue call-outs in Llanfwrog serve most of Denbighshire too, Galltegfa, Ruthin and Efenechtyd included. Ring and check instead of guessing if you are close to a border, or anywhere awkward to explain.
Llanfwrog is a village, and a call-out drain suits it: whether the car is on a home drive, a residential street, a car park or a forecourt, we drain it where it stands, so it never needs to be shifted to us.
AdBlue in a diesel tank around Llanfwrog: the cost of fixing it
Since each callouts vary, a single price wouldn't be honest. What changes the price is, first of all, whether your engine has been running and for how long; then how much AdBlue got in; and then where the vehicle is and whether a technician can get to it safely, which is easier on an open drive than in a tight gap behind Llanfwrog Community Centre.
With that in mind, every call from Llanfwrog begins with the identical trio — which fluid was put in, how much, whether the engine ran — ahead of any figure. Once those are known, a range turns into one firm number.
Before a van sets off, you hear the quote on the phone. And payment is on the day, by card or over the phone, with nothing in advance. While our engineer is travelling, check your policy: many cover misfuelling.
Llanfwrog: still alongside your car?
Not touching your car is, right now, the best move open to you. Keys out, engine off, ignition off. Ring 0333 366 0103 then tell us it's AdBlue, about how much, and whether it's run. Petrol in Diesel takes it from there, in Llanfwrog or anywhere in Denbighshire.