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Petrol in Diesel

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Don't Start It: AdBlue in a Diesel Tank in North Leigh

AdBlue in the diesel tank? Then leave your engine off — and your ignition as well. In plain terms, AdBlue is simply urea in water. Unlike fuel, it neither burns nor blends, and nothing happens until your engine pulls it round. If your engine has not run yet, AdBlue in a diesel tank is generally drained and thoroughly cleaned where the vehicle sits around North Leigh. Before anything, phone us on 0333 366 0103.

Call 0333 366 0103

North Leigh, AdBlue in your diesel tank: what to do straight away

Things to do:

  • Keys out — that way nobody can power anything on.
  • Hazards on, if moving traffic is anywhere near.
  • So you can give us which liquid it was and about what quantity, save your receipt or the empty bottle.
  • Ring just where you are. Say a OX29 6 postcode or the closest street sign, and nobody has to search for you.

Do not:

  • Not even briefly, and not to roll your vehicle: your motor remains off.
  • Many diesels power their pump the moment the ignition comes on, so keep the car off.
  • No extra fuel added. The AdBlue won't mix, so it is pointless.
  • Leave the vehicle where it is rather than driving it anywhere, even a short stretch down Park Road.
  • Emptying that tank on your own by the road isn't worth trying.

On a forecourt in North Leigh, whether it's the Gulf or another one, ask the attendants to help you roll the car away from the petrol pump. If you are on your own drive, leave it just where it is.

What AdBlue does in a diesel tank

AdBlue is made for your exhaust, not the engine. It goes into its own tank and is sprayed into the exhaust gas to clean it. No part inside an injection pump is made for this liquid — and none of it was meant to go that way.

It does not blend. Once it's tipped into a tank of diesel, AdBlue behaves not at all like diesel. The intake takes fuel from the lowest part of your tank, and that's exactly where AdBlue settles: as it is denser than diesel, it sinks. The first thing the fuel system pulls through, once it runs, is the AdBlue. So a motor that had AdBlue poured in on a drive in Barnard Gate last night, and has not been started since, is still the simple case: the AdBlue is lying at the bottom of that tank, and nothing has drawn it in.

After it is drawn in, the damage comes in two forms. It attacks some metals found in fuel components, attacking any part it touches till it is cleared completely. And once the water evaporates, the urea forms crystals that clog filters and lodge in narrow passages. Where the AdBlue is in the lines, leaving it till morning around North Leigh makes it worse. In the tank alone, waiting does nothing. Diesel protects the injection pump and each injector as it passes; water gives no lubrication, and that is a separate form of damage.

Draining AdBlue from a diesel tank in North Leigh

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

Fill a diesel with petrol in error at the BP, and this issue is diluted fuel. Mixed into your diesel and sitting still, it is harmless for now; using your engine is the damage.

AdBlue in a diesel is another matter: not thin fuel, but no fuel at all. Not burning, it cannot just be run through. It doesn't stay mixed, and so it cannot be thinned. And crystals and corrosion don't wash out with the next tank of fuel. That is why the flush counts more with AdBlue than with petrol, and why starting your engine "to see" costs more here than almost anywhere else, whether your car is in The Green or the middle of North Leigh.

As with petrol, there's good news. Anywhere in Oxfordshire the vehicle has come to rest, an unstarted engine leaves the AdBlue still in the reservoir: the simplest part of a fuel system to empty.

How AdBlue ends up in a diesel tank around North Leigh

In dim light, two caps together — the AdBlue one and the diesel cap, occasionally behind a single flap — may appear the same. Nobody intends it; plenty of designs allow it. Most of the time it occurs with a bottle bought on the way home and poured in on the driveway, not at the pump.

The ways it occurs are few and familiar. Halfway through the morning drop-off, the dashboard warns, and outside North Leigh Church of England School the top-up is rushed. Near Windmill Heights, a driver pours a container in at home in the evening. Or someone unfamiliar with that flap tops up the car in dim light, stopped in the car park outside The Masons Arms.

The least familiar vehicles get it the most — rentals, brand-new ones, company cars, and the other vehicle in a home with one of each fuel types. Keep it switched off: that's the first step to an identical slip, anywhere around North Leigh or the rest of Oxfordshire you happen to be.

Started the motor with AdBlue in your diesel tank in North Leigh?

In that case, the AdBlue is no longer inside the tank. With any running time, it travels to the high-pressure pump and each injector, after passing via the fuel filter and pipework.

Rough running, smoke, dropping power, dashboard warnings or stalling: each may show up, maybe part way across North Leigh or returning from North Leigh Recreation Ground. Stop as soon as it is safe, switch off, and do not restart it to check. Every start pulls more of it through.

On the M40, under 15 miles from North Leigh, the first junction is where to leave, and somewhere sensible is where to park — not driving on.

Distance matters: every mile pushes the AdBlue further in, so heading towards Oxford, under 10 miles away, gives a much larger job than crossing North Leigh to the car park by North Leigh Library. Roughly how far had it come? Tell us.

Once the engine has been started, the flush takes in more, and all of it is done where the vehicle has ended up. Permanent damage is very uncommon when it is spotted quickly.

North Leigh: how AdBlue is cleared from a diesel

A street beside North Leigh Memorial Hall, a driveway, a layby or a forecourt: wherever your vehicle has stopped in North Leigh, our technicians come to it. What was put in, roughly the quantity, and if your engine has been run: we ask first, since those shape the work.

Then your tank is emptied where the car waits, and so the contaminated fuel and the AdBlue come out together. The fuel system is flushed thoroughly, which counts more with AdBlue than with petrol, since what it leaves behind doesn't rinse out on its own. Your filter is cleaned, or replaced where it needs to be; fresh diesel goes in; and your car is tested. Most of these jobs are a half-hour visit once we get there, if your engine has not run. The equipment is explosion-proof, and so a live forecourt is no issue, and it is hushed enough for a residential street late at night.

Bleeding the system with new diesel comes at the end. Whether it's a parking bay outside Combe or a driveway in North Leigh, that is where we start it and you drive off. Before leaving, our engineers check it is running properly with fresh diesel in. As the job is done in its entirety where the vehicle is, a workshop never comes into it. You get a VAT invoice and an engineer report later, which is what insurers want.

About North Leigh

North Leigh is a village in Oxfordshire, situated approximately 8.8 miles west of Oxford, and is characterized by its detached housing stock. North Leigh sits in a rural area at an elevation of around 136 metres, near the villages of New Yatt and East End. North Leigh is a relatively small community, with a population of around 1733 people, and is located about 60 miles from London. North Leigh remains a typical example of a rural Oxfordshire village, with nearby Freeland also being a neighbouring settlement.

North Leigh and Oxfordshire: AdBlue drains across the area

AdBlue jobs in North Leigh go to vans that serve the towns near it — New Yatt, East End plus Freeland — and much of Oxfordshire further out, across OX postcodes. Near a boundary, or somewhere tricky to explain? Asking is better than assuming, so phone.

A van that comes to you fits North Leigh, a rural village: there's no need to bring the vehicle to us, because our engineers drain it there, in a drive, a side street, a car park or a filling station.

North Leigh: what AdBlue in a diesel tank costs to fix

There is no honest single price, because the jobs aren't the same. Whether the engine has been running, and for how long, comes first in what moves the cost. How much AdBlue got in comes next, and then the position of the car, since an open driveway is simpler for a van to get to safely than a tight gap behind Turner Hall.

For that in mind, every call from North Leigh begins by asking the same trio — which fluid was put in, how much, whether the engine ran — before a quote. Those answers narrow the range right down to a single number.

Before anyone heads out, you are told the quote by phone. Then payment is on the day, by card or by phone, with nothing in advance. Many insurance policies include misfuelling cover, so it is worth checking yours while we are on the way.

North Leigh: still next to the car?

In that case, touch nothing — that's the most helpful move available. Keys out, motor off, ignition off. Petrol in Diesel handles the rest, in North Leigh or anywhere in Oxfordshire, once you call 0333 366 0103 saying it was AdBlue, roughly how big an amount, and whether the engine ran.

Call 0333 366 0103