---
title: AdBlue in a Diesel Tank Sunny Bower: Explained
canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/sunny-bower-lancashire/
location: Sunny Bower
county: Lancashire
latitude: 53.766680
longitude: -2.462980
service: AdBlue in a Diesel Tank
updated: 2026-10-02
---

# Preventing AdBlue in a Diesel Tank in Sunny Bower: Why It Occurs

If AdBlue is already in your diesel tank, stop reading for a moment: leave the engine and your ignition off then phone 0333 366 0103.

Normally, if your engine hasn't run, it's emptied and fully cleaned where your vehicle sits around Sunny Bower.

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

## AdBlue in a diesel motor: two tanks, two fillers

Many newer diesels on the roads around Sunny Bower and Cob Wall carry two liquids, not one. Diesel goes to the engine.

The exhaust, not your motor, is where AdBlue ends up: sprayed into the gas to clean it, from a separate tank.

There's a filler on each tank.

Plenty of motors have a single flap for the two, while some put the AdBlue filler to the boot or under the bonnet.

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

Rarely filled, AdBlue normally comes out of a bottle, tipped by someone who must stop and think what filler to use.

The error lives in that gap.

## AdBlue in the diesel tank in Sunny Bower: how it happens

Rarely is it carelessness: usually three things line up.

The warning comes first. As AdBlue runs low the 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 Whalley Old Road before work, or in the car park at The Farthings on the way home.

Unfamiliar cars are second, as well. Hire cars, new motors and company cars place their fillers differently, and the hand reaches for the cap it used on the old one.

Lastly, the bottle goes in: diesel filler or AdBlue filler, it slides in just as readily, and after the pour starts, nothing halts it.

It takes a few seconds, whether out in Bank Hey or right in the centre of Sunny Bower.

## Telling the AdBlue filler from the diesel filler

Look at these first, at a forecourt in Sunny Bower or a drive over in Royshaw Hill. A few seconds, no more.

- Position can mislead; the cap does not. AdBlue ones are often blue or bear the word "AdBlue" — diesel caps usually don't.

- On many cars, the size tells: AdBlue has the smaller filler neck.

- A label inside the fuel flap often says which fuel goes where, on many cars. Look for it.

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

- Check with the person who drove it last — before you leave, not when the light comes on — if you collect a hire or company car from somewhere like the car park outside Blackburn.

## How to top up without AdBlue in the diesel tank

On the day the light comes on — anywhere it is across Lancashire — a simple routine to follow.

- Not in a rush on the side of Rowan Close, not on a slope, not with your engine running: park then switch off properly.

- Find the AdBlue filler and read the cap. Say "AdBlue" out loud as you unscrew it. It sounds silly and it does the trick.

- If both sit under one flap, check your diesel cap is still closed before you lift the bottle — and leave the vehicle on.

- Using the bottle's own spout, tip slowly — and stop when it's full or the bottle is empty.

- Only after that, start the car: close the cap, check a second time, and make sure your diesel cap was never opened.

Find during the second or third stage that the bottle went into the wrong filler? That's where you stop.

Never go on to step five.

## Put AdBlue in your diesel tank around Sunny Bower already?

The short order of things, starting with no starting the motor.

Keep your ignition off as well, because on plenty of diesels it alone runs the pump.

Don't top up with diesel to thin it: AdBlue doesn't mix with diesel, it sinks to the bottom of your tank, where your fuel is sucked from.

On a forecourt — BP, Tesco or another — the attendants will usually help roll the car clear, if you ask.

If you're on your own driveway around Sunny Bower, leave it where it is.

When the motor has run already, pull over somewhere safe then turn the car off.

The next exit is where to leave if you are on the M65, under 3 miles from Sunny Bower.

Tell us roughly how far it went: a run towards Preston, under 10 miles away, is a bigger job than a short hop across Sunny Bower.

## Our arrival around Sunny Bower, and what occurs next

Our engineers come to the vehicle wherever it has stopped, whether that is outside Roe Lee Park Primary School, near Kingdom Hall or on your own drive.

Our engineers ask what was put in, about how much, and whether it has run, since the answers determine the work and our quote.

You get that quote by phone, before anybody sets off.

Your system is then flushed thoroughly, once the tank is emptied.

Unlike petrol, AdBlue leaves crystals and eats at some fuel-system metals, and neither washes out by itself. That is why it counts more.

A test comes at the end: before that, fresh diesel goes in, and the filter is flushed or changed as needed.

We don't go until it has been started and is running properly.

If the engine hasn't run, the majority of jobs take about half an hour once we are there, using pumps that are fine on a busy forecourt and quiet enough to use outside a house after dark.

The insurer will ask for the engineer's report and the VAT invoice, and you get both once this job is done. Payment comes on the day, with no deposit.

Misfuelling cover is included in many insurance policies — and so use the wait to look at yours.

## About Sunny Bower and where it is

Sunny Bower is a suburban area situated on the riverside in Lancashire, with a mix of semi-detached housing and a population of around 4122 residents. Sunny Bower sits at an elevation of 175 metres, close to the nearby places of Bank Hey, Little Harwood, and Bastwell. Sunny Bower is located near Preston, which is approximately 9.6 miles away, and is part of the wider North West region. Sunny Bower's riverside setting provides a distinctive character to the area.

## Sunny Bower and Lancashire: AdBlue drains across the area

Little Harwood and Bastwell are among the towns near Sunny Bower, a residential suburb, that the same teams cover, throughout BB postcodes.

A postcode starting BB1 5 gets our van to you fastest.

The car stays where it is.

Wherever it stands — beside Masjid e Bilaal, in a lay-by en route to Roe Lee Park, at home — that's where it gets cleared.

Awkward to explain, like the back of Khanqah? Close to a county line? Checking beats guessing, and so phone.

## For Sunny Bower people, the short version

Before you tip, read the cap.

Petrol in Diesel empties it where it stands, anywhere around Lancashire, if AdBlue has gone in the diesel tank regardless — and so leave the car off then call 0333 366 0103.
