Don't Start It: AdBlue in a Diesel Tank in Baxenden
With AdBlue in your diesel tank, your ignition remains off and so does the engine. Urea dissolved in water is all AdBlue is. Not like fuel, it neither burns nor mixes, and no harm starts until your motor pulls it round. In Baxenden, AdBlue in a diesel tank caught before your motor runs usually means a drain and a thorough flush, right where the car is. Ring 0333 366 0103 before you do anything else.
Your next steps straight away, Baxenden: AdBlue in the diesel tank
To do:
- So no one can switch your ignition on, pull your keys out.
- Hazards on, if moving traffic is at all near.
- So you can give us which fluid it was and roughly how much, save the till receipt or the empty bottle.
- Give us a postcode starting BB5 2, or whichever street is closest, and our van finds you directly — so ring from wherever you are.
Things not to do:
- Do not start your motor, even for a moment to shift the car.
- Switching your key to ignition alone sets your pump going on many diesels. Skip it.
- Do not top up with diesel to thin it. AdBlue doesn't mix in diesel; it separates out.
- Do not drive the vehicle anywhere, not even a short distance along Scott Avenue.
- No emptying it yourself, either, on the verge.
On a forecourt in Baxenden, whether it's the Shell or another one, ask the attendants to help you push the car away from the pump. If you are on your own drive, leave the car exactly where it sits.
What does AdBlue do in a diesel tank?
Not the motor but your exhaust is where AdBlue belongs. Its own tank keeps it, and from there it's sprayed into the exhaust, where it cleans the fumes. No part in an injection pump is designed for this liquid — and none of it was intended to go through one.
It doesn't blend. Once it's tipped into the tank, AdBlue behaves not at all like fuel. It sinks, because it is denser than diesel, and settles low where the pickup takes its fuel from. Simplest of all: one that got AdBlue in Green Haworth last night and has not been started since. The liquid sits at the foot of the tank, untouched — but it would be the first thing through if your motor starts, before any diesel at all.
Once it's pulled in, the damage takes two forms. What is left once the water goes is urea, which turns into crystals: they settle in tiny passages and block filters. Worse, it eats at some metals in a fuel system, and keeps going until it is flushed out. Lines carrying AdBlue spell damage by morning for a vehicle sitting around Baxenden. Only in that tank, it stays the same. Water lubricates nothing. The high-pressure pump and every injector need diesel running past them, so the water part harms them in its own right.
Why is AdBlue in a diesel often the bigger issue?
An issue of thinned fuel is what you end up with from filling a diesel with petrol from the Esso. It mixes with the diesel, and while it's in that tank it causes no harm; the harm comes from running your engine on it.
The trouble with AdBlue in a diesel is a completely unsuitable substance. It cannot simply be run through, since it does not burn. It does not stay mixed, and so it can't be thinned. And crystals and corrosion don't wash out with the next tank of fuel. That is why the flush counts more with AdBlue than with petrol, and why starting the engine "to see" costs more here than almost anywhere else, whether your car is in Sherfin or the middle of Baxenden.
As with petrol, there is good news. Emptying a tank is the easiest job on a fuel system, and without start-up, the AdBlue remains in it — wherever around Lancashire your car sits.
How AdBlue ends up in a diesel tank around Baxenden
In dim light, two caps side by side — the AdBlue one and the diesel one, occasionally behind one flap — can look the same. Nobody intends it; many layouts invite it. Mostly it happens with a bottle bought on the way home and poured in on the driveway, not at the forecourt.
The ways it occurs are few and familiar. The top-up gets hurried outside Baxenden St John's Church of England Primary School, after your dash lit up with a warning while the children were dropped off. Near St John's Close, someone pours a bottle in at home in the evening. Otherwise, in dim light outside the pub in the village, your vehicle is topped up by someone using that flap the first time.
Rented vehicles, new vehicles, fleet vehicles, or the second vehicle in a family with one of each: the least known cars see it the most. Keep it switched off: that is the first step to the same mistake, anywhere in Baxenden or the remainder of Lancashire you happen to be.
Baxenden: started the motor with AdBlue in the diesel tank?
Then the AdBlue has left the tank. Through the filter, through the pipework, and — given any running — on to the injection pump and every injector: that is where it travels.
Rough running, smoke, lost power, dashboard lights or stalling: any may show up, perhaps part way across Baxenden or coming back from Haworth Park. Stop as soon as it is safe, switch off, and don't restart the car to check. Every start pulls more of it through.
On the M65, under 3 miles from Baxenden, the first junction is where to exit, and somewhere sensible is where to park — not carrying on.
How far it went matters. A couple of hundred yards across Baxenden to the car park by Church of St John the Baptist is a very different job from a run towards Preston, under 15 miles away, with the AdBlue reaching further into your system with every mile. Tell us roughly how far it had come.
There is more to rinse out once your engine has run, and we do all of it where the vehicle has ended up. Long-term damage is very uncommon if it's caught quickly.
Baxenden: how AdBlue is cleared from a diesel
We come to your car, wherever it has stopped around Baxenden: a side street near Baxenden Cricket Club, a drive, a lay-by or a forecourt. Which fluid got in, roughly the quantity, plus whether the motor has turned over: our technicians check before all else, because those decide the job.
The polluted diesel and the urea leave together when your tank is emptied, on the spot. Residue from AdBlue will not wash away unaided, so the whole system gets a careful flush, which counts far more with urea than for petrol. Next, your filter: cleaned, or changed when it must be. Then clean diesel, then a test of your vehicle. Not run? In that case expect roughly half an hour once we are there for most jobs. The pumps are explosion-proof, safe on a working forecourt and quiet enough to use outside a house after dark.
Fresh diesel goes in to prime the fuel system, and that's the last step. Whether it is a parking space by Accrington or a drive in Baxenden, that is where our engineers start the car and you set off. The test before we leave is that it runs correctly on new diesel. No workshop is required at any stage, with the entire job done then and there. Insurers want a VAT invoice and an engineer report, and both come at the end.
About Baxenden itself
Baxenden is a suburban area in Lancashire, situated near the River Hyndburn at an elevation of around 220 metres. Baxenden lies approximately 14 miles north of Preston and 180 miles northwest of London, with nearby neighbourhoods including Higher Baxenden and Lower Baxenden. Baxenden has a population of around 3036 people, predominantly living in semi-detached housing. Baxenden is close to Rising Bridge, a nearby settlement in the same region.
Baxenden and Lancashire: AdBlue drains across the area
Higher Baxenden, Lower Baxenden and Rising Bridge are among the towns around Baxenden that the same vans reach, along with much of Lancashire beyond, throughout the BB postcode area. Guessing doesn't help by a border or somewhere tricky to pin down; phone and ask.
Baxenden is a residential suburb, and a mobile drain suits it: whether the vehicle is on a home drive, a residential street, a car park or a forecourt, we drain it where it sits, so it never needs to be shifted to us.
What AdBlue in a diesel tank costs to put right in Baxenden
There is no honest single quote, because the jobs are not the same. Whether the motor has been running, and for how long, comes first in what moves the cost. How much AdBlue went in comes next, and then the location of the vehicle, since an open drive is simpler for our van to reach safely than a tight gap behind Haworth Art Gallery.
Ahead of any figure, not after, each enquiry from Baxenden opens with the same three questions: the fuel, the quantity, plus whether the engine ran. Those answers shrink the range right down to one number.
Priced on the call before the van sets out, the job is settled that day — card or phone, no deposit. Many insurance policies include misfuelling cover, and so it's worth checking yours while we are on the way.
Still beside the car in Baxenden?
Leaving your vehicle alone is, then, the most useful move open to you. Motor off, keys out, ignition off. Ring 0333 366 0103 and tell us it's AdBlue, about how much, and whether it has run. Petrol in Diesel takes it from there, in Baxenden or anywhere across Lancashire.