---
title: AdBlue in a Diesel Tank Woodside: Explained
canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/woodside-durham/
location: Woodside
county: Durham
latitude: 54.662280
longitude: -1.729280
service: AdBlue in a Diesel Tank
updated: 2026-10-15
---

# Avoiding AdBlue in a Diesel Tank in Woodside: Why It Occurs

If AdBlue is already in your diesel tank, stop reading for a moment: leave your motor and your ignition off and ring 0333 366 0103.

Caught before the engine runs, it's usually a drain and a thorough flush, done where your car is around Woodside.

The rest of this page covers why it happens and how to make sure it does not — useful if you are reading ahead of time.

## AdBlue in a diesel vehicle, and its separate tank

Plenty of newer diesels on the roads around Woodside and High Escomb carry two liquids, not one. Diesel goes to the engine.

AdBlue goes to the exhaust, where it is sprayed into the gas to clean it, and it lives in a tank of its own.

There's a filler for every tank.

Many of vehicles share a single flap for both, whereas others put the AdBlue filler to your boot or under the bonnet.

At the petrol pump, your diesel side is topped up all the time.

Rarely filled, AdBlue usually comes from a bottle, tipped by a driver who must stop and think what cap to use.

That gap is where the error lives.

## How does AdBlue in your diesel tank take place around Woodside?

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

To start with, the warning. Low AdBlue brings a warning from your car, and letting it run dry leads to limp mode — hence a rushed top-up, maybe before work off Main Street, perhaps outside The Saxon Inn on the way home that evening.

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

A spout-topped bottle meets no resistance at a diesel filler any more than at an AdBlue one. So the tip, once started, carries on.

Witton Park or the heart of Woodside: it is the same few seconds either way.

## Which filler is for AdBlue, and which for diesel?

Whether a Woodside forecourt or a driveway out in Escomb, take a couple of seconds over these before anything is poured in.

- Position can mislead; the cap doesn't. AdBlue ones tend to be blue or bear the word "AdBlue" — diesel caps usually don't.

- The size. On plenty of vehicles the AdBlue filler neck is the smaller of the two.

- Lift the flap and check for a label — many vehicles mark which belongs in which inlet right there.

- The handbook. If your filler is not by your diesel cap, it is in your boot or under the bonnet, and the handbook says which.

- The person who drove the vehicle last. On a hire or company car collected from somewhere like the car park at Bishop Auckland, ask before you leave, not when the light comes on.

## AdBlue top-ups that never reach your diesel tank

When the light goes on, wherever across Durham, use this routine.

- Park then switch off. Not on a slope, not with the engine running, and not in a rush on the side of St Paul's Gardens.

- Silly as it sounds, saying "AdBlue" out loud while you unscrew the cap works — once you have located the filler and read the cap.

- The two under one flap? So make sure the lid on the diesel side stays closed before raising the bottle.

- Gently does it, through the bottle's own spout, until it is full or the bottle runs out.

- Before starting the car, close the cap and check again that your diesel cap was never came off.

Find at the second or third step that the bottle went in the wrong filler? That is where you stop.

Stage five stays out.

## Put AdBlue in your diesel tank in Woodside already?

Brief order, then. First: the engine stays unstarted.

Don't switch the ignition on; on plenty of diesels that alone runs the fuel pump.

AdBlue doesn't mix with diesel — it sinks to the bottom of your tank, where the fuel is sucked from — so don't top up with diesel to dilute it.

The attendants at JET, Tesco or another forecourt will usually help pushing the vehicle away if asked.

Your own driveway around Woodside is the place it should stay.

Stop as soon as it is safe then switch off, if the engine has already run.

On the A1(M), under 10 miles from Woodside, that means the next exit.

Tell us about how far it went: a run towards Durham, under 10 miles away, is a bigger job than a short hop across Woodside.

## What occurs when our technicians turn up in Woodside

We come to the car wherever it has stopped, whether that is outside St Chad's Catholic Primary School, Witton Park, close to Witton Park Village Hall or on your own drive.

Which liquid was put in, the amount, and if it ran: our technicians ask because those replies set both work and price.

The quote is given on the call, ahead of any van leaving.

After that: a drain, then a thorough flush of the entire system.

With AdBlue that matters more than with petrol: it crystallises and is corrosive to some of the metals in a fuel system, and so it doesn't wash out on its own.

Once the fuel filter is cleaned — or replaced, where required — clean diesel goes in, and then your car is tested.

We don't go until it has been fired up and is running correctly.

Most jobs are finished in roughly half an hour once we get there, as long as the motor hasn't run — and the pumps our technicians use are safe on a live forecourt yet quiet after dark outside a house.

The insurer usually wants an engineer's report and the VAT invoice, and both are yours once the job is done. Payment comes on the day, with no deposit.

Plenty of insurance policies include misfuelling cover, so it is worth checking yours whilst we are on the way.

## About Woodside, briefly

Woodside is a small village in County Durham, situated inland at an elevation of 117 metres, approximately 9.9 miles from the city of Durham. Woodside has a population of around 623 people and is characterized by predominantly terraced housing. Woodside is located near other local places such as Witton Park, California, and Phoenix Row, and is about 227.9 miles north of London.

## AdBlue drains about Woodside, and Durham beyond

Throughout DL postcodes, our vans that cover Woodside — a rural village — work the nearby spots too, Phoenix Row and California among them.

Quickest of all: give a DL14 0 postcode to the van.

No need to shift your car.

The drain happens right there, whether a driveway, a road near St. Paul's Church, or a lay-by on the way to Hecklewood.

Ring and ask rather than guessing if you're near a boundary, or somewhere hard to describe, like the back of Witton Park Methodist Church.

## In short, for Woodside people

Pour no AdBlue until you've read the cap.

Still AdBlue in your diesel tank? Petrol in Diesel can drain it where it stands, anywhere in Durham: switch the car off and phone 0333 366 0103.
