Don't Start It: AdBlue in a Diesel Tank in Oakhill
With AdBlue in your diesel tank, your ignition stays off and so does the motor. Urea mixed in water is all AdBlue is. Unlike fuel, it neither ignites nor blends, and nothing starts until the motor pulls it round. In Oakhill, AdBlue in a diesel tank caught before the engine runs usually comes down to a drain and a thorough flush, right where your car is. Ring 0333 366 0103 before you do anything else.
AdBlue in your diesel tank in Oakhill: the first few minutes
Do these:
- Pull your keys out, and so nobody switches your ignition on.
- Close to moving traffic? So put the hazard lights on.
- So you can tell us which fluid it was and roughly what quantity, save the till receipt or the empty bottle.
- Tell us a postcode starting MK5 6, or whichever street is nearest, and the van reaches you straight — so ring from wherever you are.
Do not:
- Do not start the motor, even for a moment to move the car.
- Do not switch your ignition on. On plenty of diesels that alone runs the fuel pump.
- Pouring in more diesel doesn't help: AdBlue settles out rather than blending.
- Even a short stretch up Otterburn Crescent is too far to drive the vehicle.
- No emptying it yourself, at all, on the verge.
At a forecourt around Oakhill, whether it's the Morrisons or another one, ask the staff to help you roll your car clear of the petrol pump. If you are on your own drive, leave the vehicle precisely where it stands.
AdBlue in a diesel tank, and what it does there
AdBlue is made for the exhaust, not the engine. Stored in a dedicated tank, it is squirted into the exhaust stream to clean the gases. Neither side suits the other: urea does not belong in an injection pump, and an injection pump can't take urea.
Poured in with the diesel, it stays apart rather than blending — quite unlike fuel. Denser than diesel, it sinks and collects underneath it — the same place the intake sucks from. A vehicle topped up on a driveway in Grange Farm overnight and left unstarted is the simple case. No pump has sucked the AdBlue up so far — though once the engine runs, that is what goes first, straight from the bottom of the tank.
Two kinds of harm come from there. What remains once the water goes is urea, which turns into crystals: they settle in narrow passages and block filters. Worse, it attacks some metals in the fuel system, and carries on till it's cleared out. By daybreak, a vehicle parked in Oakhill with AdBlue in its lines grows worse; if it is only inside that tank, it doesn't. Water protects nothing. The high-pressure pump and every injector need diesel running past them, and so the water part harms them in its own right.
Petrol or AdBlue in a diesel: why AdBlue is often worse
A fault of thinned fuel is what you get after fuelling a diesel with petrol from the BP. It mixes with the diesel, and while it's in that tank it does no harm; the harm comes from running the engine on it.
The issue with AdBlue in a diesel is a completely wrong substance. Not burning, it cannot simply be run through. Crystals and corrosion remain after the next tankful, and AdBlue separates again out of the diesel, so thinning it can't work. That is why the flush counts so much, and turning your key "to see" costs more with AdBlue than almost any other slip — in Shenley Wood or the heart of Oakhill alike.
As with petrol, there is good news. Clearing a tank is the simplest job on a fuel system, and without start-up, the AdBlue remains in it — anywhere in Buckinghamshire your vehicle has stopped.
Oakhill: how AdBlue ends up in a diesel tank
It is not deliberate. Plenty of cars keep the AdBlue cap beside the diesel inlet, now and then behind a single flap, and muddling them up is easy in poor light. Mostly it is never the filling station: a driver buys a container heading home and tips it in outside the house.
A couple of familiar ways account for most cases. A warning light comes on during the school run, and the top-up happens in a hurry outside Christ the Sower Ecumenical Primary School. Someone pours the bottle in at home, right off Darwin Close, as the day ends. Or someone unfamiliar with that flap refills your car in dim light, parked in the car park by Sportsmens Rest.
It comes up most in a hire car, a brand-new vehicle, a fleet vehicle, or the other motor in a home with both fuel types — the vehicles people know least. Wherever you're around Oakhill or the rest of Buckinghamshire, it's the same slip and the same first answer: leave it off.
AdBlue in your diesel tank in Oakhill, and the engine started?
Then that tank is no longer where the AdBlue is. Via the filter, along the pipework, and — given any running time — into the injection pump and each injector: that's how far it travels.
Rough running, smoke, dropping power, dashboard lights or cutting out: any may appear, maybe midway across Oakhill or coming back from Shenley Wood. Stop as soon as it is safe, switch off, and do not restart the car to check. More of it is pulled through with each start.
On the M1, under 10 miles from Oakhill, the first junction is where to leave, and anywhere sensible is where to park — not carrying on.
Each mile carries the AdBlue further in. That is why crossing Oakhill to park near Medbourne Pavilion and a drive of under 3 miles towards Milton Keynes are very different jobs. About how far it had come is worth telling us.
There is more to rinse out once the motor has been run, and our technicians do all of it where your car has come to a stop. Very seldom does it leave lasting damage when it is noticed soon.
Clearing AdBlue in a diesel in Oakhill: what it takes
Anywhere it has stopped in Oakhill — a filling station, a layby, a drive, a road by Seedlings Children's Centre — our van comes to the car. The work rests on three replies, and our engineers ask for first — which fluid got in, the amount, and if your motor has run.
On the spot, the tank is then emptied, and all of the contaminated diesel and the urea come out at once. A careful flush counts much more with AdBlue than after petrol, since what remains won't wash away on its own. Your filter is flushed, or replaced where it needs to be; clean diesel goes in; and the car is tested. Most of these jobs are a half-hour visit once we arrive, provided your motor hasn't run. Quiet enough for use outside a house at night, and fine on a busy forecourt, the pumps are explosion-proof.
New diesel goes in to bleed the fuel system, and that is the last step. Firing it up comes next, and then you set off from where your car is parked, by Milton Keynes Central or on a driveway in Oakhill. Before leaving, we confirm it is running smoothly with fresh diesel in. No workshop is needed at any point, with the entire job done then and there. Afterwards, there is the paperwork for the insurer: a VAT invoice and a report from the engineer.
About Oakhill and where it is
Oakhill is a suburban area in Buckinghamshire, situated near the city of Milton Keynes and approximately 45.7 miles from London. Oakhill sits at an elevation of around 108 metres, in a gently rolling inland landscape. Oakhill is characterized by its predominantly flat-type housing and is surrounded by nearby places such as Woodhill, Hazeley, and Medbourne. Oakhill has a population of around 3142 residents.
Oakhill and Buckinghamshire: AdBlue drains across the area
Over the MK postcode area, the vans answering AdBlue call-outs around Oakhill reach much of Buckinghamshire as well, Woodhill, Hazeley and Medbourne included. If you're close to a border, or somewhere hard to explain, ring and ask rather than assuming.
No moving is needed. In Oakhill, a residential suburb, a van that comes to you works: your vehicle is drained on the spot, be it in a driveway, a residential street, a car park or a filling station.
Oakhill: what AdBlue in a diesel tank costs to fix
Each job differs, and so no single quote would be fair. The cost moves first with how long, if at all, the motor has been running, and next with the amount of AdBlue that went in. After that it depends on where the car is and whether a van can get to it safely, which is simpler on an open driveway than in a tight gap behind Oakhill Moat.
That's why each call from Oakhill starts with the same three queries, asked before giving a figure, not after: what got in, how much, and if it's run. Once they are known, a range turns into a single firm figure.
Before a van sets off, you are told our quote on the phone. And you pay on the day, card or over the phone, with nothing in advance. Look at your policy while we are on the way: plenty include misfuelling cover.
In Oakhill and still next to the vehicle?
Then, the best thing to do with your car is to leave it. Keys out, motor off, ignition off. Ring 0333 366 0103: AdBlue, the amount, plus whether the engine ran are all our technicians ask. Petrol in Diesel handles the rest across Buckinghamshire, Oakhill included.