AdBlue in a Diesel Tank in Banbury? Don't Start It
Motor off, ignition off: that is where you start if AdBlue has gone into the diesel tank. Water with urea mixed in it: that's AdBlue. As it is water-based, it won't ignite and won't blend with diesel; trouble only comes once your pump begins pulling it. In Banbury, AdBlue in a diesel tank found before the engine runs usually means a drain and a thorough flush, right where your car is. Ring 0333 366 0103 before you do anything else.
Those opening minutes: AdBlue in your diesel tank around Banbury
Things to do:
- Take your keys out, and so nobody switches your ignition on.
- Put your hazards on if you are at all near moving traffic.
- Which fluid, and about what volume? Hang on to the bottle or your receipt, and our technicians can know.
- Ring right where you are. Quote a OX16 5 postcode or the closest street name, and no one has to search for you.
Never do these:
- Moving the car just a few yards is no reason to fire up the engine.
- Your ignition remains off: on many diesels, switching it on is enough to start the pump.
- Don't top up with diesel to dilute it. AdBlue does not mix in diesel; it separates out.
- Any driving at all is to be avoided, even a short distance up Market Place.
- Emptying your tank yourself beside the road is not worth trying.
The staff working at any Banbury filling station — the Morrisons among them — will usually help rolling it aside if you ask. Stopped on your own driveway? Then it remains just where it is.
What AdBlue does in a diesel tank
Made for the exhaust, AdBlue has no place in the motor. Its own reservoir holds it, and from there it is sprayed into the exhaust, where it cleans the fumes. Nothing in an injection pump is designed for this liquid — and no part of that was meant to go that way.
It does not blend. Once it is tipped into the tank, AdBlue acts not at all like fuel. It's heavier than diesel, so it sinks and gathers at the bottom of that tank, which is where the pickup sucks fuel from. Simplest of all: a vehicle that got AdBlue in Easington overnight and hasn't been started since. The liquid sits at the base of your tank, undrawn — but it would be the first thing through once your engine runs, before any diesel at all.
Once it is sucked in, the damage comes in two forms. What remains once the water evaporates is urea, which turns into crystals: they lodge in narrow passages and block filters. Worse, it eats at some metals in a fuel system, and keeps going until it is cleared out. Lines holding AdBlue spell damage by morning for a vehicle parked in Banbury. Just inside the tank, it stays the same. And there's the water: it brings no protection to the parts that need it the most — the injection pump and each injector.
AdBlue in a diesel: why it's regularly worse than petrol
A fault of thin fuel is what you get from filling a diesel with petrol from the Shell. It mixes with your diesel, and while it is in the tank it does no damage; the harm comes from running the engine on it.
AdBlue in a diesel is another problem: not thin fuel, yet no fuel at all. Not burning, it cannot just be run through. It doesn't stay mixed, and so it cannot be weakened. And crystals and corrosion do not wash out with the next tank of fuel. That's 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 the vehicle is in Ruscote or the middle of Banbury.
As with petrol, there is good news. If the engine hasn't run, the AdBlue is still inside the tank, and the tank is the easiest part of a fuel system to clear, wherever across Oxfordshire the vehicle is sitting.
How does AdBlue end up in a diesel tank in Banbury?
Plenty of cars place the AdBlue cap beside the diesel one, occasionally under one flap, and after dark the two can look the same. Nobody means it. A container picked up when driving home and tipped in outside the house, instead of at the forecourt, is the usual story.
It tends to take place in a few familiar ways. The top-up gets rushed outside St Mary's Church of England Primary School, Banbury, after your dash lit up with a warning as the kids were taken off. Someone pours the container in at home, right off High Street, as the day ends. Otherwise, after dark by The Cherwell, your car is refilled by a driver opening that flap for the first time.
The least known cars get it the most — hire cars, brand-new cars, company cars, and the other vehicle of a home with one of each fuel types. Keep it switched off: that is the first response to the same mistake, anywhere around Banbury or the rest of Oxfordshire you happen to be.
Banbury: started the motor with AdBlue in the diesel tank?
Then the AdBlue has left that tank. Through the filter, along the pipework, and — with any running time — on to the injection pump and every injector: that's where it has gone.
Lumpy running, smoke, dropping power, dashboard lights or cutting out: any might appear, perhaps part way across Banbury or coming back from Bridge Street Garden. Stop as soon as it is safe, switch off, and don't restart the vehicle to check. With each start, more of it is pulled through.
Banbury sits under 3 miles from the M40; if you were on it, leave by the first junction and stop safely rather than driving on.
How far it went counts. A few hundred yards across Banbury to the car park by The Town Hall is a very different job from a run towards Oxford, under 25 miles away, with the AdBlue reaching further into the fuel system with every mile. Roughly how far it had come is worth telling us.
Once your engine has run, the flush covers more, and all of it is done where your car has stopped. Long-term damage is very uncommon if it's noticed soon.
Clearing AdBlue in a diesel in Banbury: what it takes
The vehicle remains put, whether that is a road near Castle Quay Shopping Centre, a driveway, a layby or a forecourt around Banbury, and our van travels to it. Before anything else our technicians ask what got in, about how much, and if your engine has been run, since those replies determine the work.
Then your tank is cleared where the car waits, so the contaminated fuel and the AdBlue come out together. What remains from AdBlue will not flush away by itself, so the fuel system gets a full flush, which counts far more with urea than for petrol. Next, the fuel filter: flushed, or changed when it must be. After that fresh diesel, then a check of the vehicle. Most of these jobs are a half-hour job once we get there, provided your engine has not run. Low-noise enough to use outside a house at night, and safe on a busy forecourt, our pumps are explosion-proof.
Lastly, the fuel system is bled with new diesel. You head off as soon as we have fired it up, and it makes no difference whether the car is on a driveway in Banbury or in a bay outside the nearest station. The check before we go is that it runs properly on new diesel. Since the job is done in its entirety where your car is, a garage never comes into it. Your insurer is likely to want an engineer's report and the VAT invoice — both yours once the job is done.
About Banbury and where it is
Banbury is a town in north Oxfordshire, situated on the River Cherwell at an elevation of around 98 metres. Banbury lies approximately 64 miles northwest of London and 22 miles northwest of Oxford, with nearby suburbs including Grimsbury, Neithrop, and Calthorpe. Banbury has a population of around 24659 people, predominantly living in semi-detached housing. Banbury is a significant urban centre in the South East region, with a mix of old and new buildings along its riverside setting.
Banbury and Oxfordshire: AdBlue drains across the area
Our teams that answer AdBlue calls around Banbury also cover the spots about it, Grimsbury, Neithrop and Calthorpe among them, and most of Oxfordshire beyond, across the OX postcode area. If you're close to a boundary, or somewhere hard to describe, ring and ask instead of assuming.
A mobile service fits Banbury, a riverside town: you have no need to take your vehicle to us, because our technicians drain it on the spot, on a driveway, a side street, a parking area or a filling station.
AdBlue in a diesel tank around Banbury: the cost of fixing it
There is no fair single quote, because the jobs are not the same. Whether your engine has been running, and for how long, comes first in what moves the price. How much AdBlue got in comes next, and then the position of the vehicle, because an open drive is easier for a van to reach safely than a tight space behind Tooley's Historic Boatyard.
That's why each call from Banbury starts with the same three queries, asked before giving a figure, not after: what was put in, how much, and whether it's run. Those replies turn a range into a straight price.
You hear that quote by phone, before anyone sets off, and you pay on the day, by card or by phone, with nothing upfront. Many insurance policies include misfuelling cover, so it is worth checking yours whilst we are on the way.
In Banbury and still beside the car?
Not touching your car is, then, the most useful move you can do. Keys out, engine off, ignition off. Ring 0333 366 0103 then tell us it's AdBlue, about how much, and whether it's run. Petrol in Diesel takes it from there, around Banbury or anywhere across Oxfordshire.