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Petrol in Diesel

0333 366 0103

AdBlue in the Diesel Tank in Wootton? Keep It Switched Off

Motor off, ignition off: that is where you start if AdBlue has got into the diesel tank. Chemically, AdBlue is just urea in water. It doesn't burn, it doesn't mix with diesel, and the harm it does starts when the system draws it in. Caught before your motor has run, AdBlue in a diesel tank is generally a drain and a thorough flush, done where your car is around Wootton. No step comes before calling 0333 366 0103.

Call 0333 366 0103

Those opening minutes: AdBlue in the diesel tank in Wootton

Do:

  • Pull the keys out, so nobody switches the ignition on.
  • Close to moving traffic? So put the hazards on.
  • So you can tell us which liquid it was and about how much, keep the till receipt or the empty bottle.
  • Give us a postcode starting OX1 5, or whichever street is nearest, and the van reaches you directly — so ring wherever you stand.

Never do these:

  • Do not start the motor, even for a moment to move your car.
  • The ignition stays off: on many diesels, turning it on is enough to start your fuel pump.
  • AdBlue does not mix in diesel — it separates out — so adding extra diesel will not weaken it.
  • Never drive the vehicle anywhere, not even a short distance down Besselsleigh Road.
  • Don't try to drain the car yourself at the roadside.

The attendants working at any Wootton filling station — the Marcham Road Service Station included — will usually help rolling it clear if you ask. If you're on your own drive, leave the vehicle just where it sits.

What AdBlue does in a diesel tank

Not the engine but the exhaust is where AdBlue belongs. Kept in a dedicated tank, it's squirted into the exhaust stream to clean the gases. A fuel pump is not made to cope with it, and AdBlue was never supposed to go through one.

Poured in with the diesel, it keeps separate instead of mixing — quite unlike fuel. It sinks, since it's denser than diesel, and pools low where the intake draws its fuel from. Easiest of all: one that had AdBlue in Boars Hill overnight and has not been started since. The liquid sits at the foot of your tank, untouched — though it will be first through once the engine runs, before any diesel at all.

Two kinds of harm come from there. Crystals and corrosion. As the water dries, it leaves urea that hardens in filter elements and narrow channels; meanwhile, since it eats at certain metals, each part it touches suffers for as long as it stays inside. If the AdBlue is in the pipework, waiting till morning in Wootton makes it worse. In your tank alone, waiting does nothing. And there is the water: it offers no protection to the parts that rely on it the most — the high-pressure pump and every injector.

Draining AdBlue from a diesel tank in Wootton

AdBlue in a diesel: why it's regularly worse than petrol

A fault of thin fuel is what you end up with from filling a diesel with petrol at the Tesco. Mixed into the diesel and sitting still, it's harmless at that stage; running your engine is the damage.

AdBlue in a diesel is another matter: not thin fuel, yet no fuel at all. It cannot simply be run through, because it doesn't burn. Nor can it be thinned, because it splits again — and the next tankful will not rinse away deposits or corrosion. So the flush matters more here, and trying your engine "to see", in the centre of Wootton or out in Cothill, does more harm than nearly any other slip.

The good news is the same as with petrol. Anywhere across Oxfordshire the car has come to rest, an unstarted engine means the AdBlue still inside the reservoir: the easiest bit of a fuel system to empty.

How AdBlue ends up in a diesel tank in Wootton

It's not on purpose. Many cars keep the AdBlue inlet beside the diesel one, occasionally under one flap, and muddling them up is simple after dark. Mostly it's never the forecourt: a driver picks up a bottle driving home and pours it in outside the house.

Mostly, it occurs in one of a few familiar ways. The refill is hurried outside Wootton St Peter's Church of England Primary School, after your dash lit up with a warning as the kids were dropped off. A bottle is poured in at the end of the day on a drive just off Lamborough Hill. Or your car is topped up in the car park outside The Bystander, in poor light, by a person who has never opened that flap before.

Hired vehicles, new vehicles, company cars, or the spare car in a home with one of each: the least familiar vehicles see it most. Wherever around Oxfordshire, Wootton as well, the slip doesn't change, and nor does the first step: leave it switched off.

Started the engine with AdBlue in your diesel tank in Wootton?

Then the tank is no longer where the AdBlue is. Given any running time, it goes on to the injection pump and every injector, after passing via the fuel filter and pipework.

Lumpy running, smoke, lost power, dashboard warnings or cutting out: any may appear, maybe midway across Wootton or coming back from Lashford Lane Fen. Stop when safe. Switch off. Keep the vehicle off rather than restarting it to check. Every start pulls more of that through.

On the Wheatley Spur, under 10 miles from Wootton, the first junction is where to leave, and somewhere safe is where to stop — not carrying on.

A quick hop across Wootton to the car park by Wootton and Dry Sandford Community Centre is one thing; driving towards Oxford, under 5 miles away, is something else, since every mile pushes the AdBlue further in. So distance matters. Tell us roughly how far it had come.

Once the engine has been started, the flush includes more, and all of it is done where your car has come to a stop. Very seldom does it leave permanent damage if it's spotted soon.

Draining AdBlue in a diesel in Wootton: what it takes

Anywhere it has stopped in Wootton — a forecourt, a layby, a driveway, a street by The Parish Church of St Peter — the van travels to your car. Three replies decide the work, and so first our engineers ask what was put in, about what quantity, plus if your motor has turned over.

The contaminated diesel and the urea come out together when your tank is emptied, right there. Residue from AdBlue won't flush away unaided, and so the fuel system gets a full flush, which counts far more with urea than for petrol. Your filter is cleaned, or replaced where it needs to be; clean diesel goes in; and the car is tested. The majority of these jobs are a half-hour visit once our engineers get there, provided the engine has not run. The pumps are explosion-proof, safe on a busy forecourt and quiet enough to use outside a house at night.

Lastly, your system is primed with fresh diesel. Then our technicians fire it up and you head off, whether from a parking space by Radley or a driveway around Wootton. Our engineers check it runs correctly on clean diesel before we leave. Since the job is done in its entirety where your car is, a garage never comes into it. Insurers want a VAT invoice and an engineer report, and you get both afterwards.

About Wootton itself

Wootton is a village in Oxfordshire, situated on the banks of the River Ock at an elevation of around 96 metres. Wootton lies close to the city of Oxford, approximately 4 miles to the west, and is part of the wider South East region. Wootton has a mix of housing types, but detached homes are particularly prevalent in the area. Wootton is also near to other small settlements, including Henwood and Dry Sandford.

AdBlue drains across Wootton and Oxfordshire

Throughout the OX postcode area, the teams taking AdBlue call-outs in Wootton reach much of Oxfordshire too, Wootton Village, Henwood and Dry Sandford among them. Close to a border, or anywhere awkward to explain? Checking is better than assuming, so phone.

No towing is needed. In Wootton, a village, a mobile service fits: your vehicle is emptied where it stands, whether on a drive, a side street, a car park or a forecourt.

What AdBlue in a diesel tank costs to put right in Wootton

Because the callouts vary, a single figure wouldn't be fair. The price moves first with how long, if at all, the motor has been running, and next with the amount of AdBlue that went in. After that it turns on 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 St Helen's.

With that in mind, each enquiry from Wootton opens with the identical trio — what went in, what quantity, whether it ran — ahead of any figure. Once they are answered, a range becomes a single fixed number.

Priced on the call before the van sets out, the job is paid for on the day — card or phone, nothing in advance. Check your insurance whilst we are on the way: many include misfuelling cover.

In Wootton and still alongside the vehicle?

Then, do nothing — that is the best step available. Motor off, keys out, ignition off. Call 0333 366 0103 and tell us it's AdBlue, roughly how much, and whether it's run. Petrol in Diesel takes it from there, around Wootton or anywhere in Oxfordshire.

Call 0333 366 0103