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Petrol in Diesel

0333 366 0103

Don't Start It: AdBlue in a Diesel Tank in Auchmuty

AdBlue in your diesel tank? Then leave the motor off — and your ignition too. In plain terms, AdBlue is simply urea in water. It doesn't burn, it doesn't mix with diesel, and the harm it does starts when your fuel system pulls it in. In Auchmuty, AdBlue in a diesel tank caught before your engine runs usually means a drain and a thorough flush, right where the car is. No step comes before calling 0333 366 0103.

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AdBlue in your diesel tank around Auchmuty: the first few minutes

To do:

  • Keys out — then no one can switch anything on.
  • Put your hazards on if you're anywhere close to moving traffic.
  • Which fluid, and about what amount? Save the bottle or the receipt, and our engineers can know.
  • Call right where you are. Say a KY7 5 postcode or the nearest street name, and nobody has to hunt for you.

Not to do:

  • No starting the engine — not briefly, not to shift your car.
  • Switching your key to ignition alone sets the pump going on many diesels. Avoid it.
  • Pouring in more diesel does not work: AdBlue settles out instead of thinning.
  • Even a short distance along Baxter Road is too far to drive it.
  • Don't try to drain it yourself at the roadside.

The attendants working at any Auchmuty filling station — the Morrisons included — will normally help rolling it aside if you ask. At your own driveway, do not move it at all.

AdBlue in a diesel tank, and what it does there

Not the motor but the exhaust is where AdBlue is meant to go. Stored in a separate tank, it is squirted into the exhaust stream to treat the fumes. A fuel pump is not designed to take it, and AdBlue was never supposed to travel through one.

Fuel blends; AdBlue, once tipped in, will not. The behaviour is nothing like fuel's. It is heavier than diesel, so it sinks and collects at the bottom of your tank, which is where the pickup pulls fuel from. Simplest of all: one that had AdBlue in Woodside overnight and hasn't been started since. The AdBlue sits at the base of the tank, undrawn — but it will be first through once your motor starts, ahead of any diesel at all.

From there it does two kinds of harm. What is left once the water goes is urea, which forms crystals: they settle in tiny channels and clog filters. On top of that, it eats at some metals in the fuel system, and carries on until it's cleared out. If the AdBlue has reached the pipework, leaving it overnight around Auchmuty makes things worse. In the tank only, waiting does nothing. Water protects nothing. The injection pump and every injector depend on diesel running through them, and so the water part damages them in its own right.

Draining AdBlue from a diesel tank in Auchmuty

Why AdBlue in a diesel is often more significant than petrol

Top up a diesel with petrol by mistake over at the Shell, and this problem is thinned fuel. Harm only comes from running on it. Mixed into the diesel and sitting in your tank, it does nothing.

AdBlue in a diesel is a different matter: not thin fuel, but no fuel at all. Because it doesn't burn, running it through is not an option. Nor can it be thinned, since it splits back out — and the next tankful won't clear away deposits or corrosion. So the flush counts more here, and turning the key "to see", in the centre of Auchmuty or out in Alburne Park, does more harm than nearly any other slip.

The good news is the same as with petrol. Clearing a tank is the easiest part on any fuel system, and with no running, the AdBlue stays in there — anywhere across Fife your vehicle sits.

How does AdBlue end up in a diesel tank around Auchmuty?

It is not deliberate. Plenty of vehicles have the AdBlue cap alongside the diesel one, occasionally under a single flap, and muddling them up is easy after dark. A container picked up while driving home and tipped in at home, instead of at the forecourt, is the usual route.

A couple of familiar ways account for the majority of them. The refill is hurried outside the local primary school, after your dash lit up with a warning while the children were dropped off. A bottle is poured in at the end of the day on a drive just off Woodside Road. Another version: dim light, the car park outside Golden Acorn Hotel, and a driver using that flap the first time.

The least known cars get it most — hire cars, new ones, fleet ones, and the other motor in a family with both fuels. Anywhere in Fife, Auchmuty included, the mistake doesn't change, and nor does the first step: keep it off.

Started the engine with AdBlue in the diesel tank in Auchmuty?

In that case, the AdBlue is no longer in your tank. It has been pulled through the fuel filter and your lines, and if your motor ran for any time, it has got to your high-pressure pump and the fuel injectors.

You may notice the engine running unevenly, smoking, losing power, showing warning lights or cutting out, maybe on the way back from Warout Walk Playpark or halfway across Auchmuty. Stop as soon as it is safe, switch off, and don't restart the car to check. More of that is pulled through with each start.

On the M90, under 10 miles from Auchmuty, the first junction is where to exit, and anywhere sensible is where to park — not driving on.

A quick hop across Auchmuty to the car park by Free Baptist Church is one matter; heading towards Dunfermline, under 15 miles away, is another, because every mile carries the AdBlue further in. So distance counts. Approximately how far had it come? Tell us.

Wherever the car came to a halt is where all of it gets done, even with more to clean out once the engine has been run. Spotted soon, it very seldom leaves long-term damage.

What draining AdBlue from a diesel involves around Auchmuty

Anywhere it has come to rest in Auchmuty — a filling station, a layby, a drive, a street by Studio8 — the van travels to your car. The work depends on three replies, which our technicians ask for first — what was put in, the quantity, and if the motor has run.

The polluted diesel and the urea leave together when that tank is emptied, on the spot. With AdBlue, far more than with petrol, the flush counts: the fuel system is cleaned all the way through since residue will not wash away unaided. After that, the filter: cleaned, or replaced if it has to be. Then fresh diesel, and then a test of your car. Roughly half an hour once we arrive is typical for most jobs where the engine hasn't run. Low-noise enough to use outside a house at night, and safe on a busy forecourt, the pumps are explosion-proof.

The final step is to prime your system on new diesel. Then our technicians start it and you head off, whether from a parking bay by Markinch or a drive around Auchmuty. Our engineers confirm it runs smoothly on clean diesel before we leave. The whole job is done where your car is, so it never needs to be taken to a workshop. You get a VAT invoice and an engineer report later, which is what insurers ask for.

About Auchmuty

Auchmuty is a suburban area situated on the banks of a river in Fife, with a relatively low elevation of 84 metres. Auchmuty lies approximately 14 miles from Dunfermline and is part of the larger Glenrothes area. Auchmuty has a mix of housing types, but terraced housing is predominant in the area. Auchmuty is located near the Town Centre and Queensway, providing residents with access to local amenities.

AdBlue drains across Auchmuty and Fife

Over the KY postcode area, the teams taking AdBlue call-outs around Auchmuty reach most of Fife as well, Town Centre, Glenrothes and Queensway included. Ring and check instead of guessing when you are by a county line, or somewhere awkward to explain.

No towing is needed. In Auchmuty, a residential suburb, a mobile service fits: the car is emptied where it stands, be it in a driveway, a side street, a parking area or a forecourt.

What AdBlue in a diesel tank costs to put right in Auchmuty

No flat figure could be honest, since every job differs. Whether the engine has been running, and for how long, comes first in what moves the cost. How much AdBlue went in comes next, and then the location of the car, because an open driveway is simpler for a van to get to safely than a tight spot behind Hippos.

What was put in, what quantity, plus whether the engine ran: each Auchmuty call opens by asking exactly that, before any quote, never after. With those replies, the range shrinks to one fixed figure.

You hear that quote by phone, before anybody 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 while we're on the way.

In Auchmuty and still beside your car?

Leaving your vehicle alone is, right now, the most useful thing open to you. Keys out, motor off, ignition off. Call 0333 366 0103 and tell us it's AdBlue, roughly how much, and whether it's run. Petrol in Diesel takes it from there, in Auchmuty or anywhere around Fife.

Call 0333 366 0103