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Petrol in Diesel

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AdBlue in a Diesel Tank in Littlemore? Don't Start It

If AdBlue has gone into the diesel tank, keep the motor off then leave the ignition off. Urea mixed in water is all AdBlue is. Not like fuel, it neither burns nor blends, and no harm starts until the engine sucks it through. If the motor hasn't run yet, AdBlue in a diesel tank is usually emptied and carefully purged where the vehicle stands in Littlemore. Ring 0333 366 0103 before you do anything else.

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AdBlue in your diesel tank around Littlemore: the first few minutes

To do:

  • Pull the keys out, so nobody switches your ignition on.
  • Hazards on, if moving traffic is anywhere close.
  • So you can tell us which liquid it was and roughly what quantity, save your receipt or the empty bottle.
  • Call right where you are. Quote a OX4 4 postcode or the closest street sign, and no one has to search for you.

Not to do:

  • Not even briefly, and not to shift the vehicle: your motor stays off.
  • Plenty of diesels run their fuel pump the instant your ignition goes on, and so keep it off.
  • Don't top up with diesel to thin it. AdBlue doesn't mix in diesel; it separates out.
  • Any driving at all is to be avoided, including a short distance up Marlborough Close.
  • Beside the road, don't try draining it on your own.

The staff on duty at any Littlemore filling station — the Sainsbury's included — will normally help rolling it aside if you ask. At home, the car remains just where it is.

What does AdBlue do in a diesel tank?

Made for the exhaust, AdBlue has no place in your engine. It goes into its own tank and is sprayed into the exhaust gas to fresh it. A fuel pump is not designed to take it, and AdBlue was never supposed to travel through one.

Poured in with your diesel, it stays apart instead of blending — entirely different from fuel. It drops, since it is heavier than diesel, and settles low where the intake takes its fuel from. A car topped up on a driveway in Blackbird Leys overnight and left unstarted counts as the simple one. No pump has pulled the AdBlue up yet — though when the engine runs, that is what is pulled first, directly from the bottom of the tank.

From there it causes two kinds of harm. As its water goes, the urea left behind crystallises, and the crystals block filters and settle in fine passages. And it's 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 stays there. Where the AdBlue has reached the lines, waiting till morning around Littlemore leaves things worse. Inside the tank alone, waiting costs nothing. The water in it does damage of its own: the high-pressure fuel pump and the fuel injectors depend on diesel to lubricate them, and water offers them nothing.

Draining AdBlue from a diesel tank in Littlemore

Why AdBlue in a diesel is regularly more significant than petrol

Top up a diesel with petrol by mistake at the Tesco, and this problem is diluted fuel. No damage comes as long as it stays put, blended into your diesel — only once the motor works on it.

With AdBlue in a diesel, the fluid itself is plainly the wrong one. It doesn't burn, and so it can't just be run through. Nor can it be watered down, because it splits back out — and the next tankful will not rinse away deposits or corrosion. So the flush counts more here, and turning your key "to see", in the centre of Littlemore or out in Florence Park, does more harm than almost any other error.

The good news is the same as with petrol. Emptying a tank is the easiest job on a fuel system, and with no running, the AdBlue stays in it — wherever in Oxfordshire your car sits.

How does AdBlue end up in a diesel tank in Littlemore?

In dim light, two caps side by side — the AdBlue cap and the diesel one, occasionally under one flap — can look the same. No one means it; many designs invite it. A bottle picked up when heading home and poured in at home, rather than at the filling station, is the usual story.

A few familiar ways account for most cases. Midway through the drop-off, the dashboard warns, and outside John Henry Newman Academy the top-up is hurried. After work, a bottle goes in on a drive close to Barberi Close. Or a driver new to that flap tops up the vehicle after dark, stopped in the car park by Golden Ball.

It crops up the most in a hire car, a brand-new vehicle, a fleet car, or the spare vehicle of a family with both fuels — the cars people know the least. Leave it off: that is the first response to the same mistake, wherever around Littlemore or the rest of Oxfordshire you happen to be.

AdBlue in the diesel tank in Littlemore, and your engine started?

If so, the AdBlue is no longer in the tank. It has been pulled through the filter and your lines, and if the motor ran for any time, it has reached the high-pressure pump and the injectors.

Maybe coming back from Littlemore Church Nature Reserve, or midway across Littlemore, your engine might go lumpy, smoke, drop pace, light up the dash or cut out. Once you safely can, pull over then switch it off — with no restarting to test. With each start, more of it is pulled through.

Littlemore sits under 10 miles from the Wheatley Spur; if you were on it, leave at the first junction and pull up somewhere safe rather than carrying on.

A quick hop across Littlemore to the car park by The Catholic Church Of Blessed Dominic Barberi is one matter; driving for Oxford, under 3 miles away, is something else, since each mile pushes the AdBlue further in. So distance counts. Roughly how far had it come? Tell us.

Our technicians do all of the flushing where your car has stopped, and once the motor has run there is more of it. Noticed soon, it very rarely leaves lasting damage.

Draining AdBlue in a diesel in Littlemore: what it takes

Our technicians come to your car, wherever it has stopped around Littlemore: a side street near St Mary and St Nicholas, a drive, a lay-by or a forecourt. Before anything else we ask what went in, about how much, and whether the engine has run, because those answers determine the work.

The polluted diesel and the urea leave together after that tank is drained, on the spot. What remains from AdBlue will not wash away unaided, so the fuel system gets a full flush, which matters much more with urea than with petrol. The filter is flushed, or replaced where it needs to be; clean diesel goes in; and the car is tested. Most of these jobs are a half-hour job once our engineers arrive, if the engine hasn't run. Quiet enough for use outside a house at night, and fine on a busy forecourt, our pumps are explosion-proof.

The final step is to prime the system on clean diesel. You head off as soon as our engineers have started the engine, and it makes no difference whether your car is on a driveway around Littlemore or in a space at Radley. Before leaving, our technicians confirm it is running correctly with clean diesel in. No workshop is needed at any point, with the whole job done on the spot. You receive a VAT invoice and an engineer report after that, which is what insurers want.

About Littlemore itself

Littlemore is a suburban area located on the River Thames, approximately 2.6 miles from Oxford city centre. Littlemore sits at an elevation of 72 metres, with semi-detached housing being the predominant type of accommodation in the area. Littlemore is close to nearby places such as Rose Hill, Iffley, and Sandford-on-Thames, and is situated within the South East region of England. Littlemore has a population of around 8585 people and is about 49.2 miles from London.

AdBlue drains across Littlemore and Oxfordshire

Rose Hill, Iffley and Sandford-on-Thames are among the places around Littlemore that the same teams serve, along with much of Oxfordshire further out, over the OX postcode area. Near a border, or somewhere tricky to explain? Checking beats guessing, and so ring.

Anywhere the vehicle sits — your drive at home, a residential street, a car park, a filling station — our technicians empty it on the spot, with no need to take it to us; which suits Littlemore, a residential suburb, well.

Littlemore: what AdBlue in a diesel tank costs to fix

No single price would be honest, since each job differs. What changes the price is, firstly, whether the motor has run and for how long; then how much AdBlue went in; and after that where the car is and whether a technician can get to it safely, which is easier on an open driveway than in a tight gap behind Littlemore Community Centre.

With that in mind, every enquiry from Littlemore begins by asking the same trio — which fluid went in, what quantity, whether it ran — before a quote. Given those replies, the range narrows to one fixed number.

Before a van sets off, you hear our quote on the phone. Then you pay on the day, by card or over the phone, with nothing upfront. Check your policy while we're on the way: many include misfuelling cover.

Still beside the vehicle in Littlemore?

Then the most handy thing you can do is nothing to your car. Engine off, keys out, ignition off. Phone 0333 366 0103 then tell us it is AdBlue, roughly how much, and whether it has run. Petrol in Diesel takes it from there, around Littlemore or anywhere in Oxfordshire.

Call 0333 366 0103