AdBlue in a Diesel Tank in Okus? Don't Start It
AdBlue in your diesel tank? Then leave your engine off — and the ignition too. Chemically, AdBlue is simply urea in water. Not like fuel, it neither burns nor mixes, and nothing starts till the motor pulls it round. A drain and a thorough flush, done where the vehicle is around Okus, is usually what AdBlue in a diesel tank needs — if it's caught before the engine has been run. Nothing comes before ringing 0333 366 0103.
Okus, AdBlue in the diesel tank: what to do at once
To do:
- Keys out — then nobody can power anything on.
- If you're anywhere close to moving traffic, put the hazard lights on.
- So you can give us which liquid it was and about how much, keep the till receipt or the empty bottle.
- Tell us a postcode starting SN1 4, or whichever street is closest, and our van finds you straight — so call from wherever you are.
Never do these:
- Do not start the motor, even for a moment to shift the car.
- Your ignition stays off: on many diesels, switching it on is enough to start the pump.
- AdBlue does not mix in diesel — it separates out — so adding more fuel will not weaken it.
- Even a short distance up Field Rise is too far to drive it.
- Draining your tank yourself beside the road is not one to try.
At a forecourt in Okus, whether it's the Texaco or another one, ask the attendants to help you roll your car clear of the pump. At home, the vehicle remains just as it is.
AdBlue in a diesel tank, and what it does there
Made for your exhaust, AdBlue has no place in the engine. From a dedicated reservoir it goes directly to the exhaust, treating what the motor emits. A fuel pump is not designed to cope with it, and AdBlue was never supposed to go through one.
Tipped in with your diesel, it stays separate rather than blending — quite unlike fuel. Denser than diesel, it sinks and pools underneath it — the very place the pickup sucks from. When your system runs, the AdBlue is top of the list to be pulled through. Before then it sits underneath the diesel, and that is how a car topped up in Wroughton yesterday and never switched on stays the simple one, as long as nobody turns your key.
Once it is pulled in, the harm comes in two forms. Crystals and corrosion. As the water dries, it strands urea that hardens in filter elements and tiny channels; and, because it attacks certain metals, each part it reaches suffers for as long as it stays in there. If the AdBlue is in the pipework, leaving it overnight in Okus leaves it worse. In that tank alone, time does nothing. And there's the water: it offers no protection to the parts that need it most — the high-pressure pump and each injector.
Why AdBlue in a diesel is commonly more major than petrol
Petrol put into a diesel on Harvest Energy's forecourt makes the fuel watery — that's the main fault. It mixes with your diesel, and while it is inside the tank it does no damage; the damage comes from running your motor on it.
With AdBlue in a diesel, the liquid itself is plainly the wrong one. Since it doesn't burn, running it through isn't an option. Crystals and corrosion stay through the following tankful, and AdBlue separates again out of your diesel, and so watering it can't help. That is why the flush matters more, and trying the engine "to see" does more harm with AdBlue than nearly any other mistake — in North Wroughton or the heart of Okus alike.
The same good news holds as with petrol. Wherever in Wiltshire your vehicle has come to rest, an unstarted engine leaves the AdBlue yet inside the tank: the simplest part of any fuel system to clear.
Okus: how AdBlue ends up in a diesel tank
In dim light, two caps together — the AdBlue cap and the diesel cap, now and then behind a single flap — can appear the same. No one intends it; plenty of designs allow it. It mostly takes place outside the house, from a container grabbed en route home, not at the forecourt.
The ways it happens are few and familiar. A warning light comes on during the school run, and the top-up happens in a hurry outside Lift East Wichel. After work, a bottle goes in on a drive near Roman Crescent. Otherwise, in dim light outside The Wichel Inn, your car gets topped up by a driver opening that flap for the first time.
It comes up the most in a rental, a brand-new car, a fleet car, or the other vehicle of a home with both fuels — the cars people use least. Wherever you're around Okus or the remainder of Wiltshire, it is the same mistake and the same first answer: leave it off.
Already started the motor with AdBlue in your diesel tank around Okus?
The AdBlue has left that tank, then. Through the filter, through the lines, and — given any running time — into the high-pressure pump and each injector: that is how far it travels.
Lumpy running, smoke, lost power, dashboard lights or cutting out: each might appear, maybe part way across Okus or returning from Mill Lane Community Gardens. Once safe, stop then turn everything off — with no turning it on again to see. Each start pulls more of that through.
On the M4, under a mile from Okus, the first junction is where to exit, and anywhere safe is where to park — not carrying on.
Mileage matters: every mile pushes the AdBlue further into your system, so heading towards Bath, under 50 miles away, gives a far bigger job than hopping across Okus to the car park by Fire. Approximately how far had it come? Tell us.
We do all of the rinsing where the car has come to a stop, and once the engine has run there is more of it. Long-term damage is very unusual when it is noticed early.
Okus: how AdBlue is cleared from a diesel
The car stays where it is, whether that's a street beside Air, a driveway, a layby or a filling station around Okus, and our van comes to it. Before anything else we ask what went in, about how much, and if the motor has run, because those answers determine this work.
The polluted diesel and the urea come out together after that tank is emptied, on the spot. Residue from AdBlue will not flush out by itself, and so the fuel system gets a full flush, which matters far more with urea than for petrol. The 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 our engineers arrive, if your motor hasn't run. Explosion-proof pumps make a busy forecourt sensible to work on, and they run quiet enough to spare the neighbours at night.
Priming the system with new diesel comes at the end. Starting it comes next, and then you drive off from where the vehicle is parked, at Swindon or on a driveway around Okus. Before we leave, our engineers make sure it's running properly with clean diesel in. Our engineers do it all wherever your car has stopped, and it never needs to be taken to a workshop. You receive a VAT invoice and an engineer report later on, which is what insurers want.
About Okus, briefly
Okus is a suburban area situated on the riverside in Wiltshire, with a mix of residential flats and local amenities. Okus sits at an elevation of 127 metres, near the nearby places of Wichelstowe, Old Town, and Kingshill. Okus is located approximately 26.9 miles from the city of Bath and 71.6 miles from London, making it a commuter base for those working in these cities. Okus has a population of around 5223 people, predominantly residing in flat-type housing.
AdBlue drains across Okus and Wiltshire
Our vans that answer AdBlue jobs in Okus also cover the places round it, Wichelstowe, Old Town and Kingshill among them, and most of Wiltshire beyond, across the SN postcode area. If you are near a border, or somewhere hard to describe, ring and ask rather than assuming.
Anywhere your car stands — a drive at home, a residential street, a car park, a forecourt — we drain it on the spot, and there's no need to take it to us; which suits Okus, a residential suburb, well.
AdBlue in a diesel tank around Okus: the cost of fixing it
Because the jobs vary, a flat price wouldn't be fair. Whether your engine has run, and for how long, comes first in what moves the price. How much AdBlue got in comes next, and then the position of the car, because an open drive is simpler for our van to get to safely than a tight spot behind The StoweAway Community Centre.
That's why each call from Okus starts with the same three questions, asked before giving a figure, not after: what got in, how much, and if it has run. With them, the range narrows to one firm figure.
Priced by phone before the engineer heads out, the job is paid for that day — card or phone, no deposit. Look at your policy while we're on the way: many carry misfuelling cover.
Still alongside your car in Okus?
Then, the most helpful thing to do with the vehicle is to leave it. Ignition off, engine off, keys out. Ring 0333 366 0103 and tell us it is AdBlue, roughly how much, and if it has run. Petrol in Diesel takes it from there, around Okus or anywhere in Wiltshire.