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Petrol in Diesel

0333 366 0103

Avoiding AdBlue in a Diesel Tank in Trefechan: Why It Happens

AdBlue already in your diesel tank? Then set this page aside a moment, keep the ignition and engine off, and phone 0333 366 0103. A drain plus a full flush, carried out right where your vehicle sits in Trefechan, is usually all it needs when caught before your motor runs. Here in advance? Then the rest explains why it comes about and what to stop it happening at all.

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Two fillers, two tanks: AdBlue in a diesel motor

Diesel feeds your motor — but plenty of newer diesels driven round Trefechan and Penparcau carry another liquid too. Its own tank keeps it, and from there it is sent to the exhaust, and there a spray cleans the fumes.

Every tank comes with a filler of its own. Some motors put the AdBlue filler in the boot or under the bonnet; plenty more place the two side by side under one flap. Diesel goes in on every forecourt visit, again and again. Far less commonly, the AdBlue side is filled — mostly from a bottle, by a person working out where it goes. That gap is where the error lives.

How does AdBlue in the diesel tank take place in Trefechan?

Three things tend to come together, and carelessness is seldom one of them.

Hurry follows from the warning. Your car tells you as AdBlue runs low, and a dry tank sends it into limp mode — so the top-up happens quickly, before work on a drive off Y Lanfa, or on the way home in the car park at The Castle Inn.

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

Third, the spout fits: a diesel filler or AdBlue one, it slides in just as easily, and after the pour starts, nothing stops it. It takes a few seconds, whether in Aberystwyth or bang in the heart of Trefechan.

Flushing a diesel fuel system after AdBlue, Trefechan

Telling the AdBlue filler from your diesel filler

A few seconds is all the checks take — so check them before you pour anything, on a drive in Southgate or a forecourt in Trefechan.

  • Read the cap rather than going by position: AdBlue caps are frequently blue or marked "AdBlue", and diesel caps normally are not.
  • On many cars, size gives it away: AdBlue gets the smaller filler neck.
  • Open the filler flap and look for a label — plenty of cars show which goes in which filler right there.
  • In the boot or under the bonnet: that is where the filler is if it is not by the diesel cap, and the handbook says which.
  • The previous driver will know. Check when you pick up a hire car or fleet car — from Aberystwyth's car park, perhaps — not when the light appears.

Keeping AdBlue out of your diesel tank when you top up

On the day the warning appears — wherever you are in Ceredigion — a simple routine to follow.

  • Pull in somewhere level, engine off, with time to spare — never hurried on the side of Pen-yr-Angor.
  • Locate the AdBlue filler, read the cap, and speak the word "AdBlue" out loud while you unscrew it. It seems daft. It does the trick.
  • The diesel cap remains on. Where the two sit under a flap, make sure it is closed before lifting the bottle.
  • Using the bottle's own spout, pour slowly — and stop when it's full or the bottle is empty.
  • Before you start the car, shut the cap and check a second time that your diesel cap was never came off.

Discover during the second or third step that AdBlue went into the diesel tank? That is where you stop. Skip step five entirely.

Trefechan: already put AdBlue in your diesel tank?

The short order of things, beginning with no starting the engine. Keep your ignition off too, because on plenty of diesels it alone starts the fuel pump. Topping up with diesel won't thin it: rather than mixing, AdBlue sinks to the bottom of your tank, right where fuel is taken from.

The staff at Texaco, Morrisons or any forecourt will usually lend a hand pushing the vehicle clear when asked. Leave it where it is if you are on your own drive in Trefechan.

If the motor has already run, stop as soon as it is safe then switch off. Leave the M4 — under 50 miles out of Trefechan — at the next junction. Distance counts — a short hop across Trefechan makes a smaller job than driving over 50 miles towards Swansea — so say about how far it went.

Trefechan: what happens when our engineers get there

Outside the local primary school, near Aberystwyth Justice Centre or on your own driveway: wherever the vehicle has stopped, our engineers come to it. Both the work and the price depend on three replies — what fluid, which quantity, and whether it's run — so our technicians ask. The quote comes over the phone, before any van leaves.

The system is then cleaned thoroughly, after the tank is drained. AdBlue crystallises and is corrosive to some of the metals in a fuel system, so it doesn't wash out on its own — which is why the flush matters more with AdBlue than with petrol. The fuel filter is flushed, or replaced where it needs to be; clean diesel goes in; and the car is tested. The engine is fired up next and tested to make sure it runs properly, all before our technicians leave.

Unstarted cars usually need a half-hour job after the moment we arrive. The kit is safe on a live forecourt, and hushed enough for a residential street after dark. You pay on the day, with nothing upfront, and get a VAT invoice and an engineer report for your insurer. Many insurance policies include misfuelling cover, and so it is worth checking yours whilst we're on the way.

About Trefechan

Trefechan is a small coastal suburban area in Ceredigion, situated near the town of Aberystwyth and other nearby places such as Buarth Mawr and Caeffynnon. Trefechan has a population of around 2100 people and is characterized by predominantly terraced housing. Trefechan is located at a low elevation of 14 metres above sea level, close to the coastline of Wales.

Trefechan and Ceredigion: AdBlue drains across the area

Buarth Mawr and Caeffynnon are among the places near Trefechan, a residential suburb, that the same vans cover, throughout SY postcodes. A postcode starting SY23 1 gets our van to you fastest.

The vehicle does not need to move. A drive, a lay-by on the way to Castle Grounds, a side street near Elim Christian Fellowship Church: we drain the car where it sits. Ring and ask instead of assuming if you're close to a border, or somewhere hard to explain, like the back of Castle Theatre.

In short, for Trefechan motorists

Tip nothing till you've read the cap. Petrol in Diesel empties it where it stands, anywhere across Ceredigion, if AdBlue has gone in your diesel tank all the same — and so leave the car off then ring 0333 366 0103.

Call 0333 366 0103