Skip to content

Petrol in Diesel

0333 366 0103

Symington: AdBlue in the Diesel Tank? Leave It Off

Motor off, ignition off: that is where you start if AdBlue has got into the diesel tank. AdBlue is urea mixed in water. As it is water-based, it won't ignite and never combines with diesel; trouble just comes once your pump begins drawing it. Caught before the engine has run, AdBlue in a diesel tank is usually a drain and a thorough flush, done where the vehicle is around Symington. No step comes before ringing 0333 366 0103.

Call 0333 366 0103

Your next steps right now, Symington: AdBlue in the diesel tank

Do:

  • Keys out — then no one can switch anything on.
  • If you are at all near moving traffic, put the hazard lights on.
  • Which fluid, and about what volume? Hang on to the bottle or your receipt, and we will see.
  • Call right where you are. Say a KA1 5 postcode or the nearest street sign, and no one has to search for you.

Things not to do:

  • Do not start the motor, even for a moment to move the vehicle.
  • Turning the key to ignition alone starts your pump going on plenty of diesels. Avoid it.
  • AdBlue doesn't dilute in diesel — it separates out — so adding extra fuel won't thin it.
  • Leave the car where it is instead of driving it anywhere, even a short distance up Brewlands Drive.
  • Draining the tank on your own beside the road is not worth trying.

Moving the car away from the pumps is a job for attendants to help with, wherever Symington forecourt you are on, the BP or any other. Stopped on your own drive? Then it remains just as it is.

AdBlue in a diesel tank: what it does

The motor is not what AdBlue is made for; your exhaust is. From a separate reservoir it goes directly to your exhaust, treating what your engine emits. Nothing in a fuel pump is designed for this liquid — and none of it was intended to travel through one.

Inside a diesel tank it acts really differently from fuel. It does not mix in. Denser than diesel, it sinks and pools underneath it — the same spot the pickup sucks from. The first thing the fuel system pulls through, once it runs, is the AdBlue. So a car that had AdBlue poured in on a drive in Coodham last night, and has not been started since, is still the straightforward case: the AdBlue is lying at the bottom of your tank, and nothing has sucked it in.

It does two kinds of harm from there. It eats at certain metals used in fuel components, attacking any part it touches till it is cleared completely. And once the water evaporates, the urea turns into crystals that clog filters and lodge in narrow passages. Where the AdBlue is in the lines, waiting overnight around Symington makes it worse. In the tank only, waiting does nothing. The water in it causes damage of its own: the high-pressure pump and the fuel injectors rely on diesel to lubricate them, and water gives them nothing.

Draining AdBlue from a diesel tank in Symington

Why AdBlue in a diesel is regularly more serious than petrol

Top up a diesel with petrol in error at the Esso, and this problem is thinned fuel. No damage comes as long as it stays put, blended into the diesel — only once your motor runs on it.

AdBlue in a diesel is a different problem: not thin fuel, yet no fuel at all. Because it does not burn, running it through isn't an option. Whether the vehicle sits in Dundonald or the centre of Symington, turning it over "to see" does more harm with AdBlue than nearly any other slip, and the flush matters more. The reasons: it won't stay blended, so diluting it fails; and deposits and corrosion survive the next tankful.

As with petrol, there's good news. If your engine has not run, the AdBlue is still inside the tank, and your tank is the easiest part of a fuel system to clear, wherever in South Ayrshire your car is sitting.

How AdBlue ends up in a diesel tank around Symington

In dim light, two caps together — the AdBlue cap and the diesel cap, now and then under a single flap — may look the same. Nobody intends it; plenty of designs invite it. A container bought while driving home and tipped in at home, rather than at the forecourt, is the typical route.

The ways it happens are few and familiar. A warning light comes on during the school run, and the top-up occurs in a hurry outside the local primary school. Someone tips the bottle in at home, right off Dankeith Drive, as the day ends. Another pattern: dim light, the car park by Wheatsheaf Inn, and a driver using that flap for the first time.

The least known cars get it most — hire cars, brand-new ones, company cars, and the other vehicle of a family with both fuel types. Wherever you're in Symington or the remainder of South Ayrshire, it's the same error and the same first answer: leave it off.

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

The AdBlue has left that tank, then. It has been pulled through your filter and the lines, and if the engine ran for any time, it has reached the high-pressure fuel pump and the fuel injectors.

You may see the motor running unevenly, smoking, losing power, showing warning lights or cutting out, perhaps on the way back from Shaw Park or halfway across Symington. No starting it again to check: pull over once safe, then switch it off. Each start pulls more of that through.

Symington sits under 10 miles from the M77; if you were on it, leave at the next junction and pull up safely rather than driving on.

Distance matters: each mile pushes the AdBlue deeper in, so driving towards Glasgow, under 50 miles away, gives a far larger job than hopping across Symington to the car park by Symington Parish Church. Let us know roughly how far it had come.

Once the engine has been started, the flush covers more, and all of it is done where the car has ended up. Permanent damage is very uncommon if it is spotted quickly.

Symington: how AdBlue is cleared from a diesel

Our engineers come to the vehicle, wherever it has stopped around Symington: a side street close to War Memorial, a drive, a lay-by or a forecourt. Three answers shape the work, and so before anything else our engineers ask what went in, about what quantity, and if the engine has turned over.

The polluted diesel and the urea come out together when the tank is drained, on the spot. What remains from AdBlue won't wash out unaided, and so the whole system gets a full flush, which matters much more with urea than for petrol. The filter is cleaned, or replaced where it needs to be; fresh diesel goes in; and the vehicle is tested. If the engine has not run, the majority of jobs take about half an hour once our engineers arrive. Explosion-proof pumps make a busy forecourt sensible to work on, and they run quiet enough not to disturb the street at night.

Clean diesel goes in to prime the fuel system, and that is the last step. Whether it's a parking space at Barassie or a driveway in Symington, that is where our engineers start the engine and you drive off. Our engineers check it runs smoothly on new diesel before we go. We do it all wherever the car has ended up, and it never needs to be taken to a garage. The insurer will want an engineer's report and your VAT invoice — each handed over once the job is done.

About Symington itself

Symington is a village in South Ayrshire, situated inland at an elevation of 88 metres, with a mix of rural and residential areas. Symington lies approximately 25 miles from Glasgow and 333 miles from London, making it a relatively accessible rural community. Symington has a population of around 1443 people, with predominantly detached housing stock. Symington is surrounded by nearby places such as Whitelees, Bogend, and Hansel Village.

AdBlue drains in Symington and across South Ayrshire

The vans that answer AdBlue calls around Symington also cover the locations round it, Whitelees, Bogend and Hansel Village among them, and most of South Ayrshire beyond, across the KA postcode area. Near a border, or somewhere awkward to pin down? Asking is better than guessing, so phone.

A van that comes to you fits Symington, a rural village: there's no need to bring the vehicle to us, because our technicians drain it there, in a driveway, a side street, a car park or a forecourt.

AdBlue in a diesel tank around Symington: the cost of fixing it

No single price could be fair, because each job differs. What changes the cost is, firstly, whether your engine has run and for how long; then how much AdBlue went in; and then where your car is and whether a van can get to it safely, which is simpler on an open driveway than in a tight spot behind Helenton Mote.

Before a quote, never after, each enquiry from Symington opens with the same three checks: the fuel, the amount, plus if it ran. The answers turn a range into a straight quote.

Before a van sets off, you are told our quote on the phone. Then payment is on the day, card or by phone, with nothing upfront. While our engineer is travelling, check your insurance: many include misfuelling.

In Symington and still next to your car?

Not touching the car is, then, the most useful thing open to you. Engine off, keys out, ignition off. Tell us it's AdBlue, roughly how big an amount, and if the engine ran, on 0333 366 0103. From there Petrol in Diesel takes over, across Symington or anywhere within South Ayrshire.

Call 0333 366 0103