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Petrol in Diesel

0333 366 0103

St Johns: AdBlue in the Diesel Tank? Leave It Off

AdBlue in the diesel tank? Then leave the engine off — and the ignition too. AdBlue is urea dissolved in water. Not like fuel, it neither burns nor mixes, and no harm starts till your engine pulls it through. Caught before the engine has been run, AdBlue in a diesel tank is usually a drain and a thorough flush, done where the vehicle is in St Johns. Phone 0333 366 0103 before you do anything else.

Call 0333 366 0103

What to do right now, St Johns: AdBlue in the diesel tank

Do:

  • Keys out — that way nobody can power anything on.
  • Put the hazard lights on if you're anywhere near moving traffic.
  • The empty bottle or the receipt tells us the fluid and the quantity, and so do not throw it away.
  • Our van finds you fastest with a postcode starting BH21 2, or simply the name of a street close by, so call from the car.

Don't:

  • Don't start your engine, even for a moment to move the car.
  • Plenty of diesels run their fuel pump the moment the ignition goes on, and so leave the car off.
  • AdBlue does not dilute in diesel — it separates out — so adding extra diesel won't thin it.
  • Any driving at all is best avoided, even a short way down Leigh Road.
  • No emptying it yourself, either, on the verge.

On a forecourt around St Johns, whether it is the BP or another one, ask the attendants to help you push the car away from the pump. On the drive, your car remains exactly as it is.

AdBlue in a diesel tank: what it does

Meant for the exhaust, AdBlue has no business in your motor. From a dedicated tank it goes straight to your exhaust, treating what the motor emits. Nothing in it is supposed to pass through a fuel pump, and nothing in a fuel pump is designed to handle it.

Fuel mixes; AdBlue, once poured in, won't. Its behaviour is not at all like fuel's. The pickup sucks fuel from the deepest part of that tank, and that is precisely where AdBlue settles: as it is denser than diesel, it sinks. When your pump runs, the AdBlue is top of the list to go through. Until then it sits underneath the diesel, which is why a vehicle topped up in Leigh last night and never started remains the straightforward one, as long as no one turns the key.

Two kinds of harm come from there. Crystals and corrosion. As the water dries, it strands urea that crystallises in filter elements and tiny passages; and, since it attacks certain metals, every part it touches keeps suffering for as long as it stays inside. Lines carrying AdBlue mean damage by morning for a vehicle parked in St Johns. Just in the tank, it stays stable. The water in it does damage of its own: your high-pressure pump and your injectors depend on diesel to lubricate them, and water gives them nothing.

Draining AdBlue from a diesel tank in St Johns

Why AdBlue in a diesel is regularly more serious than petrol

Petrol put into a diesel on Shell's forecourt makes the fuel watery — that's the whole issue. Damage just comes from running on it. Mixed into your diesel and sitting inside that tank, it causes nothing.

The issue with AdBlue in a diesel is a completely unsuitable substance. Not burning, it cannot simply be run through. Nor can it be thinned, since it splits again — and the next fill won't rinse away crystals or corrosion. So the flush counts for more with AdBlue, and turning your key "to see", in the heart of St Johns or out in Colehill, does more harm than nearly any other mistake.

The same good news applies as with petrol. If the motor hasn't run, the AdBlue is still in that tank, and your tank is the easiest part of a fuel system to clear, wherever in Dorset the vehicle is standing.

How does AdBlue end up in a diesel tank in St Johns?

It is not deliberate. Many vehicles keep the AdBlue cap alongside the diesel inlet, now and then under a single flap, and mixing them up is simple in poor light. Most of the time it happens with a bottle bought on the way home and poured in on the drive, not at the pump.

A few familiar ways account for the majority of them. Rushing, outside St John's Church of England First School, Wimborne, after a warning lamp flashed on during the school run, someone tops up the vehicle. Someone pours the bottle in at home, just off St John's Hill, as the day ends. Or someone unfamiliar with that flap tops up the car after dark, stopped in the car park by Coach and Horses.

Rented cars, new vehicles, fleet cars, or the second car in a home with one of each: the least known vehicles get it most. An identical slip, an identical first response — keep it off — anywhere you happen to be in St Johns or the rest of Dorset.

Started the engine with AdBlue in the diesel tank around St Johns?

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

Expect rough running, smoke, falling power, warnings on the dash, or a cut-out — coming back from Island in the Stour, say, or midway across St Johns. When you safely can, stop then turn it off — with no turning it on again to test. Each start pulls more of it through.

On the M27, under 25 miles from St Johns, the first junction is where to exit, and anywhere safe is where to stop — not carrying on.

How far it went counts. A couple of hundred yards across St Johns to the car park by St John's Church is a very different job from a run towards Salisbury, under 25 miles away, with the AdBlue reaching further into the system with every mile. Roughly how far it had come is worth telling us.

Once the motor has run, the flush includes more, and all of it is done where your car has ended up. Very seldom does it leave permanent damage if it is spotted early.

What does an AdBlue drain on a diesel involve in St Johns?

Our technicians come to your car, wherever it has stopped in St Johns: a side street near Elm Pentecostal Church, a drive, a lay-by or a forecourt. The job depends on three answers, which we get first — which fluid went in, the quantity, and whether your engine has run.

The contaminated diesel and the urea come out together after your tank is emptied, right there. Residue from AdBlue will not flush away unaided, and so the whole system gets a full flush, which counts much more with urea than with petrol. Your filter is flushed, or replaced where it needs to be; fresh diesel goes in; and the vehicle is tested. Most of these jobs are a half-hour visit once our technicians arrive, if your engine has not run. The pumps are explosion-proof, fine on a working forecourt and quiet enough to use outside a house at night.

Finally, your system is primed with new diesel. You drive off as soon as our technicians have started the engine, and it makes no difference whether your car is on a drive around St Johns or in a space at Hamworthy. Our technicians make sure it runs properly on fresh diesel before leaving. We do it all wherever the car has ended up, and it never needs to be taken to a garage. Insurers want a VAT invoice and an engineer report, and both come at the end.

About St Johns, for a moment

St Johns is a suburban area in Dorset, situated on the riverside at a low elevation of 19 metres. St Johns is located near several nearby places, including Rowlands, East Brook, and Wimborne Minster, and is approximately 20 miles from the city of Salisbury. St Johns has a population of around 5697 people and predominantly consists of flat housing. St Johns is also within commuting distance to larger cities, with London being around 94 miles away.

AdBlue drains across St Johns and Dorset

AdBlue call-outs in St Johns are passed to vans that cover the places around it — Rowlands, East Brook as well as Wimborne Minster — and much of Dorset beyond, across BH postcodes. Assuming doesn't help close to a county line or anywhere tricky to describe; ring and check.

Wherever the vehicle sits — a driveway at home, a side street, a parking area, a forecourt — our engineers drain it there, with no need to take it to us; which suits St Johns, a residential suburb, well.

St Johns: what AdBlue in a diesel tank costs to fix

Not one flat price could be honest, since every job is different. What changes the cost is, first, whether the motor has been running and for how long; then how much AdBlue was put in; and then where the car is and whether our van can reach it safely, which is simpler on an open drive than in a tight spot behind St Catherine's Catholic Church.

That's why each call from St Johns starts with the same three questions, asked before giving a figure, not after: what went in, how much, and if it's run. Those replies turn a range into a straight quote.

The quote is quoted on the call, before a van sets off; payment happens on the day, by card or by phone, and nothing upfront. Plenty of insurance policies include misfuelling cover, so it is worth checking yours whilst we are on the way.

In St Johns and still next to the car?

Then the most handy thing you can do is nothing to your car. Motor off, keys out, ignition off. Phone 0333 366 0103: AdBlue, roughly how much, and whether it ran is everything we ask. Petrol in Diesel handles the rest throughout Dorset, St Johns too.

Call 0333 366 0103