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Petrol in Diesel

0333 366 0103

AdBlue in a Diesel Tank in Coton Hill? Don't Start It

If AdBlue has gone into the diesel tank, keep the engine off and leave the ignition off. AdBlue is urea mixed in water. Not like fuel, it neither ignites nor blends, and nothing starts till the engine sucks it through. In Coton Hill, AdBlue in a diesel tank caught before your engine runs normally means a drain and a thorough flush, just where the vehicle is. Before you do anything else, phone 0333 366 0103.

Call 0333 366 0103

What to do straight away, Coton Hill: AdBlue in the diesel tank

Do:

  • Pocket the keys, and that prevents someone turning the electrics on.
  • If you are anywhere near moving traffic, put your hazards on.
  • Hold on to the till receipt or the empty bottle, and so you can tell us what went in and roughly how much.
  • The van locates you quickest with a postcode starting SY1 2, or simply the name of a street nearby, so phone from the spot.

Do not:

  • Don't start the motor, even for a moment to move the vehicle.
  • The ignition stays off: on many diesels, turning it on is enough to start your fuel pump.
  • AdBlue doesn't dilute in diesel — it separates out — so adding extra diesel won't thin it.
  • Even a short way down Berwick Road is too far to drive it.
  • No emptying it yourself, at all, on the verge.

Moving the vehicle away from the pumps is a job for staff to help with, whichever Coton Hill forecourt you are on, the Local or any other. On your own driveway, don't move it at all.

AdBlue in a diesel tank: what it does

Meant for the exhaust, AdBlue has no place in the motor. From a separate reservoir it goes directly to your exhaust, cleaning what the motor emits. Nothing in it is meant to pass through a fuel pump, and nothing in a fuel pump is built to handle it.

Fuel mixes; AdBlue, once tipped in, won't. Its behaviour is not at all like fuel's. It sinks, since it's heavier than diesel, and settles low where the pickup draws its fuel from. The first thing the system pulls through, once it runs, is the AdBlue. So a car that had AdBlue poured in on a drive in Shrewsbury last night, and has not been started since, is still the straightforward case: the AdBlue is lying at the bottom of the tank, and nothing has pulled it in.

From there it does two kinds of harm. It attacks certain metals used in fuel systems, working on whatever it reaches until it is removed from your system. And once the water evaporates, the urea forms crystals that clog filters and lodge in narrow channels. Pipes holding AdBlue mean damage overnight for a vehicle sitting in Coton Hill. Just in that tank, it stays the same. Diesel protects the high-pressure pump and each injector as it passes; water offers none of that, which is a separate kind of harm.

Draining AdBlue from a diesel tank in Coton Hill

Petrol or AdBlue in a diesel: why AdBlue is regularly worse

A fault of thinned fuel is what you get from fuelling a diesel with petrol at the Asda. No harm is done while it sits unused, mixed into your diesel — only when your motor runs on it.

With AdBlue in a diesel, the fluid as such is simply the wrong one. It does not burn, so it can't simply be run through. It doesn't stay mixed, and so it can't be diluted. And crystals and corrosion do not wash out with the next tank of fuel. That is why the flush matters 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 Castlefields or the middle of Coton Hill.

The good news is the same as with petrol. If the motor hasn't run, the AdBlue is still inside that tank, and that tank is the quickest part of a fuel system to clear, wherever in Shropshire the car is standing.

How does AdBlue end up in a diesel tank around Coton Hill?

Nobody means to do it. The AdBlue filler on many cars sits right next to your diesel filler, occasionally under the same flap, and the two caps can look alike in poor light. A bottle bought while heading home and tipped in at home, instead of at the filling station, is the typical story.

A couple of familiar ways cover most cases. A warning light comes on during the school run, and the top-up occurs in a hurry outside Greenfields Primary School. In the evening, a container goes in on a driveway near Round Hill Close. Or a driver unfamiliar with that flap tops up the car after dark, stopped in the car park outside The Royal Oak.

It occurs most in the cars people know least: a hire car, a new vehicle, a company car, or the second car of a household with one diesel and one petrol. Anywhere in Shropshire, Coton Hill included, the mistake doesn't change, and neither does the first response: leave it off.

Already started the engine with AdBlue in the diesel tank around Coton Hill?

In that case, the AdBlue is no longer in your tank. The fuel filter and pipework have had it pulled through, and some running time carries it on to the injection pump and each injector.

You may notice the motor running roughly, smoking, losing power, showing warning lights or cutting out, perhaps on the way back from Flash Gardens or halfway across Coton Hill. No restarting to test: stop when it is safe, then turn everything off. More of it is pulled through with each start.

On the M54, under 10 miles from Coton Hill, the next junction is where to leave, and anywhere sensible is where to park — not driving on.

Hopping across Coton Hill to the car park by Saint George, Frankwell is one matter; driving for Wrexham, under 25 miles away, is another, because each mile carries the AdBlue further in. So distance matters. Tell us roughly how far it had come.

Wherever the car came to a halt is where all of it gets done, even with more to rinse out once the engine has been run. Permanent damage is very unusual if it's spotted early.

Emptying AdBlue in a diesel in Coton Hill: what it takes

Wherever it has come to rest around Coton Hill — a forecourt, a lay-by, a driveway, a street beside Shrewsbury Men's Shed — our van travels to the car. The work depends on three answers, and our engineers get first — which fluid got in, the amount, and if your engine has run.

The contaminated diesel and the urea leave together after that tank is drained, on the spot. A full flush matters much more with AdBlue than with petrol, since what remains will not clear away by itself. Clean diesel goes in after your filter is cleaned — or swapped, if it needs to be — and then the vehicle is tested. Most of these jobs are a half-hour job once our engineers arrive, if the engine has not run. The pumps are explosion-proof, fine on a working forecourt and quiet enough to use outside a house after dark.

Clean diesel goes in to bleed the fuel system, and that's the final step. Firing it up comes next, and then you drive off from where the vehicle is parked, by Shrewsbury or on a driveway around Coton Hill. Our engineers confirm it runs smoothly on clean diesel before we leave. No garage is needed at any stage, with the entire job done on the spot. At the end, you are given the paperwork for your insurer: a VAT invoice and a report from the engineer.

About Coton Hill, briefly

Coton Hill is a suburban area located on the riverside in Shropshire, with a mix of terraced housing and a population of around 3957 residents. Coton Hill sits at an elevation of 60 metres, near to other local neighbourhoods such as Gravelhill and Greenfields. Coton Hill is situated close to the town of Shrewsbury, although the nearest city is Wrexham, which is approximately 25 miles away. Coton Hill is also within commuting distance of larger urban areas, being around 139 miles from London.

Coton Hill and Shropshire: AdBlue drains across the area

Throughout the SY postcode area, the teams taking AdBlue call-outs in Coton Hill serve much of Shropshire too, Gravelhill, Greenfields and Frankwell among them. Guessing won't help close to a county line or somewhere hard to pin down; phone and ask.

A van that comes to you fits Coton Hill, a residential suburb: you have no need to bring your car to us, because we empty it on the spot, on a drive, a residential street, a car park or a forecourt.

What AdBlue in a diesel tank costs to put right in Coton Hill

Every job is different, so not one single price would be honest. What moves the price is, firstly, whether the motor has been running and for how long; then how much AdBlue was put in; and finally where the vehicle is and whether a van can reach it safely, which is simpler on an open driveway than in a tight gap behind Greenfields Church.

For that reason, each call from Coton Hill opens by asking the same trio — what went in, what quantity, if it ran — ahead of any figure. When those are known, a range turns into a single firm number.

You hear that price by phone, before anybody sets off, and you pay on the day, by card or by phone, with nothing upfront. While the van is travelling, check your policy: plenty include misfuelling.

Next to the car around Coton Hill, still?

Then, touch nothing — that's the most helpful step there is. Ignition off, motor off, keys out. Call 0333 366 0103: AdBlue, roughly how much, and if the engine ran are all our technicians need. Petrol in Diesel handles the remainder throughout Shropshire, Coton Hill included.

Call 0333 366 0103