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Petrol in Diesel

0333 366 0103

AdBlue in the Diesel Tank in Rook Street? Keep It Switched Off

Engine off, ignition off: that's where you start if AdBlue has got into your diesel tank. In plain terms, AdBlue is just urea in water. It doesn't burn, it does not mix with diesel, and the harm it does starts when the system pulls it in. Caught before your motor has run, AdBlue in a diesel tank is usually a drain and a thorough flush, done where the vehicle is in Rook Street. Before you do anything else, call 0333 366 0103.

Call 0333 366 0103

AdBlue in the diesel tank around Rook Street: the first few minutes

To do:

  • Take your keys out, and so no one switches the ignition on.
  • Hazards on, if moving traffic is at all close.
  • So you can give us which fluid it was and about how much, keep the receipt or the empty bottle.
  • Our van finds you quickest with a postcode starting BA12 6, or just the name of a street close by, so phone from the car.

Never do these:

  • Not even briefly, and not to shift the car: your engine remains off.
  • The ignition stays off: on many diesels, turning it on is enough to start the fuel pump.
  • AdBlue does not mix in diesel — it separates out — so adding extra diesel will not weaken it.
  • Any driving at all is best avoided, including a short way down Woodlands Road.
  • No emptying it yourself, at all, on the verge.

The staff working at any Rook Street filling station — the Gulf among them — will usually lend a hand pushing it aside if you ask. If you're on your own drive, leave the car exactly where it stands.

AdBlue in a diesel tank: what it does

Not the engine but the exhaust is where AdBlue belongs. From a dedicated reservoir it goes directly to the exhaust, treating what your engine emits. No part inside a fuel pump is made for this fluid — and none of it was intended to travel through one.

It doesn't combine. After it is tipped into the tank, AdBlue acts not at all like fuel. It is heavier than diesel, and so it sinks and collects at the bottom of that tank, which is where the pickup sucks fuel from. Once the pump runs, the AdBlue is first to go through. Before then it waits beneath the diesel, and that is how a vehicle filled in Mere last night and not started remains the simple case, provided nobody touches your key.

It does two kinds of damage from there. As its water goes, the urea left behind crystallises, and the crystals block filters and settle in fine passages. And it is corrosive to some of the metals a fuel system is made from, and so it keeps running on the components it gets to for as long as it stays there. A motor left sitting in Rook Street with AdBlue already in its lines is worse by the morning; one with AdBlue just in its tank is not. Then there's the water: it brings no lubrication to the parts that rely on it most — the high-pressure pump and each injector.

Draining AdBlue from a diesel tank in Rook Street

AdBlue in a diesel: why it is regularly worse than petrol

A fault of thin fuel is what you get after fuelling a diesel with petrol at the Esso. Damage just comes from driving on it. Mixed into the diesel and sitting inside the tank, it does nothing.

AdBlue in a diesel is an issue of the wrong substance altogether. Not burning, it can't just be run through. It doesn't stay mixed, so it can't be diluted. And crystals and corrosion do not wash out with the next tank of fuel. That is why the flush counts more with AdBlue than with petrol, and why starting the motor "to see" costs more here than almost anywhere else, whether your car is in Limpers Hill or the middle of Rook Street.

The good news is the same as with petrol. Wherever across Wiltshire the car has come to rest, an unstarted engine means the AdBlue still inside the reservoir: the simplest part of any fuel system to clear.

Rook Street: how AdBlue ends up in a diesel tank

It is not deliberate. Many vehicles keep the AdBlue cap alongside the diesel one, occasionally under one flap, and muddling them up is easy after dark. Mostly it is never the forecourt: someone buys a container heading home and pours it in outside the house.

It tends to occur in a few familiar ways. Hurrying, outside Mere School, after a warning light flashed on during the school run, someone refills your car. A driver pours the bottle in at home, just off Broom Road, as the day ends. Otherwise, after dark outside Walnut Tree Inn, the vehicle gets topped up by someone using that flap for the first time.

The least known cars get it the most — hire cars, brand-new ones, fleet ones, and the spare vehicle in a home with both fuels. Same slip, same first response — leave it off — wherever you are in Rook Street or the rest of Wiltshire.

Started your engine with AdBlue in your diesel tank around Rook Street?

The AdBlue has left the tank, then. Via the filter, through the lines, and — given any running — into the injection pump and every injector: that is how far it travels.

You may notice the engine running unevenly, smoking, losing power, showing warning lights or cutting out, maybe on the way back from Chaddenwick Wood or halfway across Rook Street. No restarting to check: stop once it is safe, then switch it off. Every start pulls more of that through.

Rook Street lies under 50 miles from the M4; if you were on it, leave by the first junction and pull up somewhere safe rather than driving on.

A quick hop across Rook Street to the car park by St Michael the Archangel is one matter; heading towards Wells, under 25 miles away, is another, since every mile pushes the AdBlue deeper in. So mileage counts. About how far it had come is worth telling us.

Wherever your car came to a stop is where all of it gets done, even with more to flush once your engine has been running. Long-term damage is very uncommon when it is spotted early.

What does an AdBlue drain on a diesel involve in Rook Street?

Our engineers come to your car, wherever it has stopped around Rook Street: a side street close to Mere Museum, a drive, a lay-by or a forecourt. What got in, roughly how much, plus whether your motor has turned over: we check before all else, since those decide the work.

The contaminated diesel and the urea come out together after your tank is emptied, on the spot. The fuel system is rinsed thoroughly, which counts more with AdBlue than with petrol, because what it leaves behind does not rinse out on its own. Testing your vehicle comes last, once clean diesel is added and your filter is cleaned or, where needed, swapped. Not run? In that case count on about half an hour once we are there for most jobs. Explosion-proof pumps mean a live forecourt safe to work on, and they're quiet enough to spare the street at night.

The final step is to bleed the system on fresh diesel. After that our technicians fire it up and you drive off, whether from a parking bay by Gillingham (Dorset) or a driveway around Rook Street. The test before our engineers go is that it runs properly on fresh diesel. No garage is required at any point, with the whole job done on the spot. At the end, there is the paperwork for your insurer: a VAT invoice plus a report from the engineer.

About Rook Street

Rook Street is a locality in Wiltshire, situated in a riverside setting with an elevation of around 96 metres. Rook Street lies near the villages of The Causeway, Southbrook, and Ivy Mead, and is approximately 18.7 miles from the city of Wells. Rook Street has a population of around 733 people and is characterised by predominantly detached housing.

AdBlue drains across Wiltshire, Rook Street included

AdBlue call-outs around Rook Street go to vans that serve the towns around it — The Causeway, Southbrook as well as Ivy Mead — and much of Wiltshire beyond, throughout BA postcodes. Ring and ask instead of guessing when you're close to a county line, or anywhere tricky to pin down.

Wherever the car sits — your drive at home, a residential street, a parking area, a forecourt — our technicians drain it on the spot, and there's no need to take it to us; that suits Rook Street, a small village, well.

What AdBlue in a diesel tank costs to put right in Rook Street

Every job is different, and so no single price is fair. Three things change the price: whether your engine has been running and for how long, how much AdBlue went in, and where the car is. That last one rests on whether a van can reach it safely, and an open driveway is simpler than a tight spot behind Mere Library.

That is why each call from Rook Street starts with the same three queries, asked before giving a figure, not after: what was put in, how much, and if it's run. Those replies turn a range into a straight price.

Priced on the call before the van sets out, the job is paid for that day — card or phone, no deposit. Misfuelling cover comes with many insurance policies, so it pays to look at yours before the van arrives.

In Rook Street and still alongside the car?

Then the most useful thing you can do is nothing to the car. Motor off, keys out, ignition off. Say it's AdBlue, roughly what quantity, and if it ran, on 0333 366 0103. From there Petrol in Diesel takes over, in Rook Street or wherever in Wiltshire.

Call 0333 366 0103