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Petrol in Diesel

0333 366 0103

AdBlue in a Diesel Tank in Cefn Cribwr? Don't Start It

Engine off, ignition off: that is where you begin if AdBlue has got into the diesel tank. Water with urea dissolved in it: that is AdBlue. Being water-based, it will not burn and never combines with diesel; trouble only comes when the pump starts pulling it. In Cefn Cribwr, AdBlue in a diesel tank caught before the motor runs usually comes down to a drain and a thorough flush, right where the car is. Nothing comes before ringing 0333 366 0103.

Call 0333 366 0103

Cefn Cribwr, AdBlue in the diesel tank: what to do right away

Do these:

  • So no one can switch your ignition on, take the keys away.
  • Hazards on, if moving traffic is at all near.
  • Which product, and roughly what volume? Hang on to the bottle or the till receipt, and our technicians can see.
  • Call us from where you are. A postcode starting CF32 0, or the name of the nearest street, brings our van to you without a search.

Don't:

  • Not even for a second, and not to roll your car: the motor remains off.
  • The ignition remains off: on many diesels, turning it on is enough to run your fuel pump.
  • Adding more diesel does not work: AdBlue settles out instead of thinning.
  • Do not drive the vehicle anywhere, not even a short way along Cefn Road.
  • By the road, do not attempt emptying it on your own.

Moving the car away from the pumps is a job for staff to help with, whichever Cefn Cribwr forecourt you're on, the Asda included. If you are on your own drive, leave the car exactly where it is.

What does AdBlue do in a diesel tank?

The motor is not what AdBlue is made for; the exhaust is. It goes into its own tank and is sprayed into the exhaust gas to fresh it. No part in a fuel pump is designed for this liquid — and none of it was intended to go through one.

It does not blend. Once it is tipped into the tank, AdBlue acts nothing like fuel. Denser than diesel, it drops and collects below it — the very place the intake draws from. Easiest of all: a vehicle that had AdBlue in Pen-y-bryn overnight and hasn't been started since. The liquid waits at the base of your tank, undrawn — but it will be the first thing through if the motor starts, ahead of any diesel at all.

Once it is drawn in, the harm takes two forms. It attacks some metals used in fuel systems, attacking any part it reaches till it's removed completely. And once the water evaporates, the urea forms crystals that block filters and settle in tiny passages. By daybreak, a vehicle sitting in Cefn Cribwr with AdBlue through its pipework grows worse; if it is just inside that tank, nothing changes. Diesel lubricates the high-pressure pump and every injector as it flows; water gives none of that, which is a separate form of harm.

Draining AdBlue from a diesel tank in Cefn Cribwr

AdBlue in a diesel: why it is frequently worse than petrol

Petrol put into a diesel on Esso's forecourt makes the fuel watery — that's the whole problem. It mixes with the diesel, and whilst it's in the tank it causes no harm; the damage comes from running your engine on it.

AdBlue in a diesel is a different problem: not thin fuel, yet no fuel at all. It doesn't burn, and so it cannot simply be run through. Deposits and corrosion remain through the next fill, and AdBlue separates back from the diesel, and so thinning it can't help. That is why the flush matters so much, and turning the key "to see" does more harm with AdBlue than almost any other mistake — in Pyle or the centre of Cefn Cribwr equally.

The same good news applies as with petrol. Anywhere around Bridgend the car has stopped, an unrun engine leaves the AdBlue yet in the tank: the easiest part of a fuel system to clear.

How AdBlue ends up in a diesel tank in Cefn Cribwr

Many vehicles put the AdBlue cap beside the diesel cap, occasionally under one flap, and after dark the two may look the same. No one means it. It mostly happens at home, from a container grabbed on the journey home, not at the forecourt.

The ways it happens are few and familiar. Halfway through the morning drop-off, the dashboard flags it up, and outside the local primary school the top-up is hurried. A driver pours the container in at home, just off Ty-Isaf Road, as the day ends. Or the vehicle is topped up in the car park at The Three Horseshoes, in poor light, by a person who has never opened that flap before.

Rented cars, new cars, fleet cars, or the spare vehicle in a family with one of each: the least familiar cars see it the most. Anywhere in Bridgend, Cefn Cribwr included, the slip doesn't change, and nor does the first response: leave it off.

Started the engine with AdBlue in your diesel tank around Cefn Cribwr?

If so, the AdBlue is no longer in that tank. Through the fuel filter, along the lines, and — given any running time — on to the high-pressure pump and each injector: that's where it travels.

Rough running, smoke, lost power, dashboard warnings or stalling: any may appear, maybe midway across Cefn Cribwr or returning from Hafodheulog Wood. No starting it again to test: pull over when it is safe, then switch everything off. More of it is pulled through with each start.

If you were on the M4, under a mile from Cefn Cribwr, come off at the next junction and stop somewhere safe rather than pressing on.

How far it went counts. A few hundred yards across Cefn Cribwr to the car park by Cefn Cribwr Community Centre is a very different job from a run towards Swansea, under 15 miles away, with the AdBlue reaching further into the fuel system with every mile. Tell us about how far it had come.

Wherever the vehicle came to a halt is where all of it gets done, even with more to rinse out once the motor has been run. Noticed soon, it very rarely leaves permanent damage.

What does an AdBlue drain on a diesel involve in Cefn Cribwr?

Wherever it has come to rest around Cefn Cribwr — a filling station, a lay-by, a drive, a road beside Cefn Cribwr Methodist Church — the van comes to the vehicle. Before anything else our technicians ask what went in, about how much, and if your motor has run, since those answers settle this work.

Next, draining your tank right there takes out the contaminated diesel along with the AdBlue in one go. With AdBlue, far more than with petrol, flushing matters: the fuel system is flushed all the way through since what remains will not flush out by itself. After that, your filter: flushed, or replaced when it has to be. Then clean diesel, then a test of the car. If the engine has not run, the majority of jobs take about half an hour once we are there. Our pumping gear is explosion-proof, so a live filling station is no fault, and it's quiet enough for a residential street after dark.

Last, the system is bled with clean diesel. You drive off as soon as our technicians have fired it up, and it makes no difference whether the vehicle is on a drive in Cefn Cribwr or in a bay by Pyle. Our technicians confirm it runs correctly on new diesel before we go. Because the job is done in its entirety where the vehicle is, a workshop never comes into it. The insurer is likely to want an engineer's report and the VAT invoice — each handed over once this job is done.

About Cefn Cribwr

Cefn Cribwr is a small village in Bridgend, situated inland at an elevation of 128 metres, with semi-detached housing being the predominant type of accommodation. Cefn Cribwr lies near several nearby villages, including Cefn Cross and Kenfig Hill, and is approximately 13.8 miles from the city of Swansea. Cefn Cribwr has a population of around 1067 residents, who live in a community that is some 151.5 miles west of London.

Cefn Cribwr and Bridgend: AdBlue drains across the area

The vans that answer AdBlue call-outs in Cefn Cribwr also cover the locations round it, Cefn Cross, Kenfig Hill and Ffordd-y-Gyfraith among them, and most of Bridgend beyond, across the CF postcode area. Near a border, or anywhere tricky to pin down? Checking is better than guessing, and so phone.

No towing is needed. In Cefn Cribwr, a rural village, a mobile service works: your vehicle is emptied where it stands, whether in a driveway, a side street, a parking area or a forecourt.

What AdBlue in a diesel tank costs to put right in Cefn Cribwr

There's no fair single quote, because the jobs are not the same. Whether the motor has run, and for how long, comes first in what shifts the price. How much AdBlue went in comes next, and then the location of the car, since an open drive is easier for a technician to get to safely than a tight gap behind Bethlehem Church Life Centre.

For that in mind, each enquiry from Cefn Cribwr opens by asking the identical trio — what got in, what quantity, if the engine ran — before any figure. Once those are known, a range becomes a single firm number.

Priced on the call before the engineer heads out, it is paid for on the day — card or phone, no deposit. Misfuelling cover is part of plenty of insurance policies, so it pays to look at yours before the van arrives.

In Cefn Cribwr and still alongside the car?

In that case, do nothing — that's the best move available. Keys out, engine off, ignition off. Ring 0333 366 0103: AdBlue, roughly how much, and whether the engine ran are all our technicians ask. Petrol in Diesel handles the remainder across Bridgend, Cefn Cribwr included.

Call 0333 366 0103