Don't Start It: AdBlue in a Diesel Tank in Denton
Engine off, ignition off: that is where you start if AdBlue has gone into your diesel tank. Urea mixed in water is what AdBlue is. It doesn't burn, it does not mix with diesel, and the harm it does begins when your fuel system pulls it in. In Denton, AdBlue in a diesel tank caught before your engine runs normally comes down to a drain and a thorough flush, just where the car is. Nothing comes before calling 0333 366 0103.
Denton, AdBlue in your diesel tank: what to do straight away
To do:
- So no one can turn the ignition on, pull the keys away.
- Hazards on, if moving traffic is anywhere close.
- So you can give us which liquid it was and roughly how much, keep the receipt or the empty bottle.
- Our van locates you quickest with a postcode starting OX44 9, or simply the name of a street close by, so call from the spot.
Not to do:
- Moving your car just a few yards is no reason to fire up the motor.
- Turning the key to ignition alone sets the pump running on many diesels. Avoid it.
- AdBlue does not dilute in diesel — it separates out — so adding more fuel will not thin it.
- Leave it where it is instead of driving it anywhere, even a short distance up Denton Lane.
- No emptying it yourself, at all, on the roadside.
At a forecourt in Denton, whether it is the Horspath Service Centre or another one, ask the attendants to help you push the car away from the pump. If you're on your own drive, leave the vehicle precisely where it is.
AdBlue in a diesel tank, and what it does there
Not the engine but your exhaust is where AdBlue is meant to go. It goes into its own tank and is sprayed into the exhaust gas to fresh it. Nothing in a fuel pump is made for this liquid — and none of that was intended to travel that way.
Inside a diesel tank it acts really differently from fuel. It does not mix in. It sinks, because it is denser than diesel, and pools down where the intake draws its supply from. Easiest of all: one that got AdBlue in Little Milton last night and has not turned since. The AdBlue sits at the base of your tank, undrawn — but it will be first through if your engine runs, before any diesel at all.
Two kinds of damage come from there. Crystals and corrosion. As the water dries, it strands urea that hardens in filters and narrow passages; meanwhile, since it attacks some metals, every part it reaches keeps suffering for as long as it stays in there. Lines carrying AdBlue spell harm by morning for a vehicle parked around Denton. Only in the tank, it stays stable. Diesel protects the injection pump and each injector as it flows; water offers none of that, and that is a second form of harm.
Why is AdBlue in a diesel often the bigger issue?
A fault of thin fuel is what you get from filling a diesel with petrol at the Asda. No damage comes while it sits unused, blended into your diesel — only when your motor works on it.
With AdBlue in a diesel, the fluid itself is simply the wrong one. Not burning, it cannot simply be run through. Deposits and corrosion stay after the next fill, and AdBlue splits back out of your diesel, so watering it can't help. Hence the flush matters more, and turning your key "to see" does more harm with AdBlue than nearly any other mistake — in Toot Baldon or the centre of Denton alike.
The same good news applies as with petrol. Clearing a tank is the simplest job on a fuel system, and without running, the AdBlue remains in it — wherever in Oxfordshire your car has stopped.
How AdBlue ends up in a diesel tank in Denton
After dark, two caps side by side — the AdBlue one and the diesel cap, occasionally behind one flap — may look the same. Nobody intends it; many designs allow it. A bottle picked up while heading home and poured in at home, instead of at the forecourt, is the typical route.
It tends to take place in a few familiar ways. A warning light comes on during the school run, and the top-up happens in a hurry outside Garsington Church of England Primary School. Near Denton Hill, a driver tips a bottle in on the drive in the evening. Or the vehicle is topped up in the car park outside Bat and Ball, in poor light, by a person who has never opened that flap before.
It happens most in the motors motorists know least: a hire car, a new car, a company car, or the second car of a household with one diesel and one petrol. An identical slip, an identical first response — keep it switched off — anywhere you happen to be around Denton or the remainder of Oxfordshire.
Denton: started your engine with AdBlue in your diesel tank?
Then that tank is no longer where the AdBlue is. Through the fuel filter, along the lines, and — with any running time — into the injection pump and every injector: that is where it has gone.
Watch for lumpy running, exhaust smoke, falling power, warnings on the dash, or a stall — coming back from Parsler's Piece, perhaps, or midway across Denton. No starting it again to check: stop once it is safe, then switch everything off. Each start pulls more of it through.
If you were on the M40, under 3 miles from Denton, come off at the next junction and stop somewhere sensible rather than pressing on.
Distance counts: every mile pushes the AdBlue further in, and so driving towards Oxford, under 10 miles away, makes a much larger job than crossing Denton to the car park by Cuddesdon War Memorial. About how far it had come is worth telling us.
Our technicians do all of the cleaning where your car has come to a stop, and once the motor has been run there is more of it. Noticed early, it very rarely leaves long-term damage.
Denton: how AdBlue is emptied from a diesel
The vehicle stays put, whether that's a street near Bishop Edward King Chapel, a driveway, a lay-by or a forecourt in Denton, and the van comes to it. What got in, about how much, plus if your motor has turned over: our engineers ask first, because those shape the job.
Then your tank is drained where your car waits, and so the contaminated fuel and the AdBlue come out together. The system is purged thoroughly, which matters more with AdBlue than with petrol, because what it leaves behind does not rinse out on its own. Next, the filter: flushed, or changed when it must be. Then fresh diesel, and then a test of your vehicle. Most of these jobs are a half-hour visit once our engineers turn up, if the engine hasn't run. Our equipment is explosion-proof, so a busy filling station is no fault, and it's hushed enough for a residential street after dark.
Fresh diesel goes in to prime your system, and that's the last step. You head off as soon as our technicians have started the engine, and it makes no difference whether the car is on a drive around Denton or in a bay outside Radley. Our technicians confirm it runs properly on fresh diesel before leaving. No garage is required at any point, with the whole job done on the spot. Insurers ask for a VAT invoice and an engineer report, and you get both at the end.
About Denton and where it is
Denton is a small hamlet in Oxfordshire, situated approximately 5.5 miles from Oxford and 45.9 miles from London. Denton lies in a low-lying area at an elevation of around 70 metres, surrounded by other nearby places such as Cuddesdon and Garsington. Denton has a population of around 508 people and predominantly consists of semi-detached housing. Denton is close to the Blenheim estate, a notable landmark in the region.
AdBlue drains across Denton and Oxfordshire
AdBlue call-outs in Denton are passed to vans that serve the towns around it — Cuddesdon, Garsington plus Blenheim — and most of Oxfordshire beyond, throughout OX postcodes. If you are near a border, or somewhere hard to explain, ring and ask rather than assuming.
A van that comes to you fits Denton, a rural hamlet: you have no need to take the vehicle to us, because our technicians empty it on the spot, on a drive, a residential street, a parking area or a forecourt.
What does AdBlue in a diesel tank cost to sort out around Denton?
Every job differs, so not one fixed price is honest. The price shifts first with how long, if at all, your engine has been running, and next with the quantity of AdBlue that was put in. After that it rests on where your car is and whether a technician can get to it safely, which is easier on an open drive than in a tight space behind All Saints.
Which fluid got in, what quantity, plus if it ran: each Denton enquiry opens with exactly that, ahead of a quote, never after. When they are answered, a range turns into a single fixed figure.
You hear that quote on the phone, before anybody sets off, and you pay on the day, by card or by phone, with nothing upfront. While the van is on the way, dig out your policy: plenty include misfuelling.
In Denton and still alongside the vehicle?
Then the most handy thing you can do is nothing to your car. Ignition off, engine off, keys out. Tell us it was AdBlue, roughly what quantity, and if the engine ran, on 0333 366 0103. From there Petrol in Diesel handles it, in Denton or wherever in Oxfordshire.