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Petrol in Diesel

0333 366 0103

AdBlue in a Diesel Tank in Behind Berry: Why It Occurs and How to Stop It

If AdBlue is already in your diesel tank, stop reading for a moment: leave your motor and the ignition off then call 0333 366 0103. In Behind Berry, finding it before your engine runs normally means draining and a thorough flush on the spot. Reading in advance? In that case what follows explains how it happens and how to stop it ever happening.

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Why does AdBlue in a diesel vehicle need its own filler?

Plenty of modern diesels on the roads about Behind Berry and Northfield carry two liquids, not one. Diesel goes to the engine. Stored in a tank of its own, AdBlue is sprayed into the exhaust stream and cleans it.

Separate tanks, separate fillers. Some motors put the AdBlue filler in the boot or under the bonnet; a lot of others have the two side by side behind one flap. Diesel gets filled at each forecourt call-out, week in, week out. The AdBlue side is filled far less often, usually from a bottle, and usually by someone who has to stop and think where it goes. That gap is where the slip lives.

Behind Berry: how AdBlue in the diesel tank takes place

Carelessness rarely explains it. Instead is three things lining up at once.

The warning comes first. As AdBlue runs low your car tells you, and if it runs out altogether, the car goes into limp mode. So the top-up is done in a hurry: on a driveway off Mowries Court before work, or in the car park at The Royal Oak on the way home.

Then your car is new. A hire car, a new vehicle or a company car puts the fillers where your last one did not, and the hand reaches for the cap it would have used on the old one.

Nothing halts the tip once it has started, because a bottle with a spout goes into a diesel filler as easily as an AdBlue one. The bottle fits. The same few seconds settle it, in the middle of Behind Berry or out in Somerton.

Flushing a diesel fuel system after AdBlue, Behind Berry

How to tell the AdBlue filler from the diesel one

Before you tip anything, whether on a drive in St Cleers or a forecourt around Behind Berry, check these. They take a few seconds.

  • Colour and marking: an AdBlue cap is frequently blue, or says "AdBlue", where a diesel cap normally doesn't. Go by the cap, not where it sits.
  • The size. On many motors the AdBlue filler neck is the smaller of the two.
  • A label inside your fuel flap often shows which fuel goes where, on many motors. Look for it.
  • Cannot find it beside your diesel inlet? In that case look below the bonnet or inside the boot — the owner's manual says where.
  • Collecting a hire or company car, perhaps at the car park outside Yeovil Pen Mill? Ask the person who drove it last before leaving, rather than once the light goes on.

Keeping AdBlue out of your diesel tank when you top up

When the light goes on, anywhere in Somerset, follow this routine.

  • Park then switch off. Not on a slope, not with your motor running, and not in a rush on the side of Lisona Court.
  • Find the AdBlue filler, read the cap, and say the name "AdBlue" out loud as unscrewing it. It seems daft. It works.
  • If both sit under one flap, check the diesel cap is still closed before you lift the bottle — and leave the vehicle on.
  • Stop when your tank fills or the bottle is empty; until then, pour gently using its own spout.
  • Only then, start the car: close the cap, check once more, and make sure the diesel cap was never opened.

Spot at stage two or three that it's already gone into your diesel side? So stop just there. Stage five is out.

AdBlue in the diesel tank already, around Behind Berry?

What follows is a short order of things, beginning with not starting the motor. Leave the ignition off as well, because on many diesels switching it on by itself starts your fuel pump. AdBlue doesn't mix with diesel — it sinks to the bottom of that tank, where your fuel is pulled from — so do not top up with diesel to thin it.

Ask the staff to help roll your car clear of the pump if you're on a forecourt — the Esso, the Texaco or anywhere else. On your own drive in Behind Berry? So the car stays where it is.

Stop as soon as it is safe then switch off, if the motor has already run. The next exit means where to come off if you're on the M5, under 15 miles from Behind Berry. Tell us roughly how far it went: a run towards Wells, under 15 miles away, is a bigger job than a short hop across Behind Berry.

Behind Berry: what takes place when our engineers arrive

Our van comes to the car anywhere it has come to rest — your own driveway, beside Somerton Community Library, or by King Ina Church of England Academy. The replies decide the work and the price, so our technicians ask what was put in, about how much, and whether it's run. Nobody sets off until you've heard our quote over the phone.

The fuel system is then cleaned thoroughly, after the tank is emptied. With AdBlue that matters more than with petrol: it crystallises and is corrosive to some of the metals in a fuel system, so it does not wash out on its own. The fuel filter is cleaned, or replaced where it needs to be; fresh diesel goes in; and the car is tested. Before we go, we fire it up and make sure that it is running smoothly.

Unrun vehicles mostly mean a half-hour job from arrival. The equipment is fine on a live forecourt, and quiet enough for a driveway late at night. You pay on the day, with nothing upfront, and get a VAT invoice and an engineer report for your insurer. Before we get there, take a look at your policy; plenty carry cover for misfuelling.

About Behind Berry

Behind Berry is a suburban area in inland Somerset, situated near the city of Wells and other nearby places such as Somerton and West End. Behind Berry has a relatively low elevation of 41 metres and is characterized by semi-detached housing. Behind Berry is located approximately 11 miles from Wells and is part of the wider South West region of England.

AdBlue drains round Behind Berry, and Somerset beyond

Being a residential suburb, Behind Berry shares its vans surrounding places — West End, May Pole Knap — right across TA postcodes and the wider area around them. A postcode starting TA11 6 gets the van to you fastest.

The vehicle does not need to shift. Anywhere it sits — near Brunel Shopping Precinct, in a layby heading to Long Sutton Plantation, at home — that is where it gets drained. If you are near a border, or somewhere hard to describe like the back of West Street Church, ring and ask rather than assuming.

The short version for Behind Berry motorists

Read the cap before you tip. Petrol in Diesel empties it where it stands, anywhere across Somerset, if AdBlue has gone in the diesel tank all the same — and so leave the car off and call 0333 366 0103.

Call 0333 366 0103