---
title: Explained: AdBlue in a Diesel Tank Bunkers Hill
canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/bunkers-hill-lancashire/
location: Bunkers Hill
county: Lancashire
latitude: 53.854140
longitude: -2.184790
service: AdBlue in a Diesel Tank
updated: 2026-10-12
---

# AdBlue in a Diesel Tank in Bunkers Hill: How It Happens and How to Stop It

Leave the motor and ignition off and ring 0333 366 0103 now — the rest can wait when AdBlue is already in the diesel tank.

A drain and a full flush, carried out right where the vehicle stands in Bunkers Hill, is normally all it needs if caught before your engine runs.

Here in advance? Then the rest explains why it happens and what to prevent it happening at all.

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

Many newer diesels around Lenches, as well as Bunkers Hill, carry on two liquids; your motor takes only the diesel.

AdBlue's own tank keeps it, and from there it goes to the exhaust, where spraying treats the fumes.

There is a filler for every tank.

Under one flap, next to each other: that is the arrangement on a lot of vehicles. Elsewhere, AdBlue's filler is beneath the bonnet or in the boot instead.

The diesel side is filled at the pump all the time.

Rarely filled, AdBlue usually goes in out of a bottle, tipped by someone who has to stop and think what filler to use.

Mistakes happen in that gap between them.

## AdBlue in your diesel tank in Bunkers Hill: how it occurs

Three things tend to line up, and carelessness is seldom one of them.

Haste comes from the warning. Your car warns you as AdBlue runs low, and an empty tank sends the vehicle into limp mode — so the top-up gets done quickly, before work on a drive off Peel Road, or heading home in the car park at The Queens.

The old car's filler is where your hand reaches — yet a rental car, a new motor or a company car keeps the fillers elsewhere. That's the second factor: a strange car.

Third, the spout goes in: diesel filler or AdBlue one, it slides in as easily, and after the tip starts, no part stops it.

It's a few seconds, whether out in Primet Bridge or bang in the centre of Bunkers Hill.

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

Look at these before pouring, on a forecourt in Bunkers Hill or a drive out in Waterside. A few seconds, that's all.

- The cap. The AdBlue cap is frequently blue, or marked "AdBlue". Your diesel cap normally isn't. Read it instead of going by where it sits.

- On plenty of cars, the size gives it away: AdBlue gets the smaller filler neck.

- The flap. Look inside your fuel flap for a label. Many motors say there which fuel goes where.

- The handbook says which it is when your filler is not next to the diesel cap: the boot, or under the bonnet.

- The previous driver will know. Check when you collect a rental or fleet car — from Colne's car park, perhaps — not once the light appears.

## Keeping AdBlue out of your diesel tank when you top up

A routine for the day the light comes on, wherever in Lancashire that is.

- Turn off once parked — flat ground, engine stopped, and never rushed beside Bolton Street on the verge.

- Locate the AdBlue filler, read the cap, and say the word "AdBlue" out loud while you unscrew it. It seems silly. It does the trick.

- Leave the diesel cap on. If both sit under one flap, check the diesel cap is still closed before you lift the bottle.

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

- Close the cap and check a second time. Make sure the diesel cap was never opened. Only then start your car.

Spot at stage two or three that it's already gone into the diesel side? So stop just there.

Skip stage five entirely.

## Put AdBlue in the diesel tank in Bunkers Hill already?

What follows is a short order of things, starting with no starting the engine.

The fuel pump starts on plenty of diesels the moment your ignition is switched on — and so leave it off.

AdBlue does not mix with diesel — it sinks to the bottom of your tank, where the fuel is drawn from — so don't top up with diesel to thin it.

If you're on a forecourt, whether it is the EG On the Move or the Sainsbury's, ask the staff to help push the vehicle clear of the petrol pump.

Your own driveway in Bunkers Hill is where it should stay.

Where your motor has run already, pull over safely and turn the vehicle off.

The next junction is the place to come off if you are on the M65, under a mile from Bunkers Hill.

A short hop across Bunkers Hill is a smaller job than a run towards Bradford, under 25 miles away, and so tell us roughly how far it went.

## Bunkers Hill: what occurs when we arrive

Outside Colne Primet Primary School, near Boundary Mill Stores or on your own driveway: wherever the car has stopped, we come to it.

Both the work and the quote rest on three replies — what fluid, what quantity, and if it has run — so we ask.

On the phone call itself, you are told our price — ahead of dispatch.

Then your tank is drained and the fuel system flushed thoroughly.

Much more than with petrol, it counts with AdBlue: crystals form, some metals corrode, and none of that clears away on its own, however long it is left.

After the filter is flushed — or replaced, where needed — fresh diesel is added, and then your car is tested.

The engine is started next and checked to be sure it runs correctly, all before our technicians go.

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

Payment happens on the day, not upfront, and you are given the documents your insurer asks for: an engineer's report and a VAT invoice.

Plenty of insurance policies include misfuelling cover, so it is worth checking yours while we're on the way.

## About Bunkers Hill

Bunkers Hill is a suburban area in Lancashire, situated on the riverside with a mix of terraced housing. Bunkers Hill sits near the towns of Primet Bridge and Greenfield, and is close to Church Clough. Bunkers Hill has a population of around 4911 people and is located at an elevation of 152 metres, with Bradford being the nearest city at 18.1 miles away.

## AdBlue drains around Bunkers Hill, and Lancashire beyond

Greenfield and Church Clough are among the places near Bunkers Hill, a residential suburb, that the same teams cover, over BB postcodes.

Fastest of all: give a BB8 9 postcode to our van.

The vehicle stays where it is.

A driveway, a lay-by on the way to Colne Roundabout, a side street close to Pendle Leisure Centre: we drain the car where it sits.

Ring and ask rather than guessing if you are near a border, or somewhere hard to describe, like the back of Sacred Heart Catholic Church.

## For Bunkers Hill people, the short version

Tip no AdBlue till you've read the cap.

AdBlue in the diesel tank regardless? Keep the vehicle off then call 0333 366 0103; Petrol in Diesel empties it on the spot, throughout Lancashire.
