Don't Start It: AdBlue in a Diesel Tank in St Dials
With AdBlue in your diesel tank, the ignition remains off and so does the engine. AdBlue is urea dissolved in water. It doesn't burn, it does not mix with diesel, and the damage it does starts when the fuel system pulls it in. Caught before the engine has run, AdBlue in a diesel tank is normally a drain and a thorough flush, done where the car is around St Dials. Phone 0333 366 0103 before you do anything else.
Those opening minutes: AdBlue in the diesel tank in St Dials
To do:
- Take the keys out, so nobody switches the ignition on.
- If you're at all near moving traffic, put the hazard lights on.
- So you can tell us which fluid it was and roughly what quantity, keep your receipt or the empty bottle.
- The van locates you fastest with a postcode starting NP44 7, or just the name of a street close by, and so phone from the car.
Never:
- Shifting the car even a few yards is no reason to fire up the engine.
- Your ignition remains off: on lots of diesels, switching it on is enough to start your fuel pump.
- No more fuel on top. The AdBlue will not blend, and so it's wasted.
- Keep the car where it is rather than driving it anywhere, even a short stretch up Henllys Way.
- No draining it yourself, at all, on the roadside.
The attendants on duty at any St Dials forecourt — the Shell included — will usually help pushing it aside if you ask. On your own driveway, do not move it at all.
What AdBlue does in a diesel tank
The engine is not what AdBlue is made for; the exhaust is. From a dedicated reservoir it is fed straight to the exhaust, cleaning what the motor emits. Nothing inside a fuel pump is designed for this fluid — and no part of that was intended to go through one.
Fuel blends; AdBlue, after poured in, will not. The behaviour is not at all like fuel's. Heavier than diesel, it drops and pools below it — the same place the pickup draws from. A car filled on a drive in Coed Eva overnight and not started since counts as the straightforward one. No pump has pulled the AdBlue up so far — though once the motor turns, that is what is pulled first, directly from the bottom of your tank.
Two kinds of harm come from there. It eats at some metals used in fuel systems, attacking any part it touches till it's cleared completely. And when the water evaporates, the urea forms crystals that clog filters and lodge in narrow passages. A vehicle left sitting in St Dials with AdBlue already in its lines is worse by the morning; one with AdBlue just in its tank isn't. The water in it causes damage of its own: the high-pressure fuel pump and the injectors rely on diesel to lubricate them, and water gives them nothing.
Why is AdBlue in a diesel frequently the bigger problem?
Top up a diesel with petrol by mistake at the Sainsbury's, and the problem is thinned fuel. Harm only comes from driving on it. Blended into the diesel and sitting in that tank, it does none.
AdBlue in a diesel is another matter: not thin fuel, but no fuel at all. Not burning, it can't simply be run through. It doesn't stay mixed, so it cannot be weakened. And crystals and corrosion do not wash out with the next tank of fuel. That is why the flush counts 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 Old Cwmbran or the middle of St Dials.
The same good news holds as with petrol. If your engine has not run, the AdBlue is still inside that tank, and that tank is the quickest part of a fuel system to clear, wherever around Torfaen your car is standing.
AdBlue in a diesel tank in St Dials: how it ends up there
After dark, two caps together — the AdBlue cap and the diesel cap, occasionally under a single flap — can look the same. Nobody means it; many designs allow it. Mostly it occurs with a bottle bought on the way home and poured in on the drive, not at the forecourt.
Mostly, it happens in one of a couple of familiar ways. Midway through the drop-off, the dashboard flags it up, and outside the local primary school the refill is hurried. A bottle is poured in at the end of the day on a drive just off Langstone Court. One more version: darkness, the car park by Blinkin Owl, and someone opening that flap for the first time.
The least familiar vehicles see it the most — hire cars, brand-new cars, fleet cars, and the other motor in a home with one of each fuels. Wherever you are around St Dials or the rest of Torfaen, it's the same error and the same first answer: leave the vehicle off.
St Dials: started the motor with AdBlue in the diesel tank?
The AdBlue has left the tank, then. The filter and lines have had it sucked along, and any running time takes it on to the injection pump and every injector.
You may see your motor running unevenly, smoking, losing power, showing warning lights or cutting out, maybe on the way back from Cwmbran Park or halfway across St Dials. Stop as soon as it is safe, switch off, and don't restart the car to check. More of that is pulled through with each start.
On the M4, under 5 miles from St Dials, the first junction is where to leave, and somewhere safe is where to park — not carrying on.
Hopping across St Dials to the car park by Fairhill Methodist Church is one thing; driving for Newport, under 5 miles away, is something else, since each mile carries the AdBlue further in. So mileage matters. Approximately how far had it come? Tell us.
Our technicians do all of the flushing where the vehicle has ended up, and once your engine has been started there is more of it. If it is noticed early, lasting damage is very rare.
What draining AdBlue from a diesel involves in St Dials
Anywhere it has come to rest in St Dials — a forecourt, a lay-by, a driveway, a street beside Crucifix — our van travels to your vehicle. The work depends on three replies, and our engineers ask for first — what went in, the amount, and whether your motor has turned over.
Next, draining the tank right there removes the polluted diesel and the AdBlue in one go. With AdBlue, far more than with petrol, flushing counts: the whole system is cleaned right through because what remains won't flush away by itself. Next, the filter: flushed, or replaced when it has to be. Then fresh diesel, then a test of your vehicle. Most of these jobs are a half-hour job once we arrive, if the engine hasn't run. Low-noise enough for use outside a house at night, and fine on a busy forecourt, the pumps are explosion-proof.
Bleeding your system with fresh diesel comes last. Whether it's a parking space by Cwmbran or a driveway around St Dials, that is where we fire it up and you set off. Our technicians confirm it runs correctly on new diesel before we leave. The whole job is done where the vehicle is, so it never has to be taken to a garage. Your insurer will want an engineer's report and your VAT invoice — each handed over once this job is done.
About St Dials itself
St Dials is a suburban area in Torfaen, situated on the riverside at an elevation of 78 metres, with terraced housing being the predominant type of accommodation. St Dials is located near the city of Newport, approximately 4.3 miles away, and is close to other nearby places such as Fairwater and Two Locks. St Dials has a population of around 7411 people and is part of the wider Newport urban area. St Dials is also within commuting distance to major cities, with London being around 125.3 miles away.
AdBlue drains across Torfaen, St Dials included
Throughout the NP postcode area, the teams taking AdBlue jobs in St Dials reach most of Torfaen as well, Fairwater, Two Locks and Hollybush included. Phone and check rather than guess if you are by a county line, or anywhere tricky to explain.
No moving is needed. In St Dials, a residential suburb, a van that comes to you fits: the car is drained where it stands, be it in a driveway, a residential street, a parking area or a forecourt.
What does AdBlue in a diesel tank cost to sort out around St Dials?
Since the callouts differ, a single figure would not be fair. Three things change the cost: whether the motor has been running and for how long, how much AdBlue went in, and where the vehicle is. That last one rests on whether a technician can get to it safely, and an open drive is simpler than a tight space behind Glen Llywd Scouts.
That's why every call from St Dials starts with the same three questions, asked before giving a figure, not after: what went in, how much, and whether it's run. Their answers narrow the range right down to a single number.
Quoted on the call before the van sets out, it is settled that day — card or phone, no deposit. Look at your insurance while we're on the way: plenty carry misfuelling cover.
Still next to your car around St Dials?
Right now, the most helpful thing to do with your car is to not touch it. Motor off, keys out, ignition off. Call 0333 366 0103: AdBlue, the amount, and whether the engine ran is all our technicians ask. Petrol in Diesel handles the remainder across Torfaen, St Dials too.