---
title: Explained: AdBlue in a Diesel Tank Smethwick Green
canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/smethwick-green-cheshire/
location: Smethwick Green
county: Cheshire
latitude: 53.169330
longitude: -2.296010
service: AdBlue in a Diesel Tank
updated: 2026-10-12
---

# Why It Happens and How to Prevent It: AdBlue in a Diesel Tank in Smethwick Green

Stop reading for a moment if the diesel tank already has AdBlue in it: ignition off, motor off, and call 0333 366 0103.

In Smethwick Green, finding it before your engine runs normally leaves draining and a thorough flush where it stands.

Reading in advance? In that case the rest covers why it comes about and how to stop it ever happening.

## Why does AdBlue in a diesel motor need its own filler?

Not one fluid but two: that's what plenty of newer diesels near Smethwick Green and Mossend run, with diesel feeding your motor.

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

Each tank comes with a filler of its own.

Some cars put the AdBlue filler in the boot or under the bonnet; plenty of others have the two side by side under one flap.

At the pump, the diesel side gets filled constantly.

Seldom topped up, AdBlue normally comes out of a bottle, poured by someone who must stop and think what filler to use.

That gap is where the slip lives.

## Smethwick Green: how AdBlue in your diesel tank takes place

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

Haste comes from the warning. Your car warns you as AdBlue runs low, and an empty tank puts it into limp mode — so the top-up gets done in a rush, before work on a driveway off Smethwick Lane, or heading home in the car park outside the pub in the village.

The old car's cap is where your hand goes — but a hire car, a new car or a company car keeps the fillers somewhere else. That is a second thing: an unfamiliar vehicle.

Lastly, the bottle fits: diesel filler or AdBlue one, it slides in as readily, and after the pour starts, no part halts it.

Whether it occurs in Illidge Green or the middle of Smethwick Green, it's the same few seconds.

## How to tell the AdBlue filler from the diesel one

Before you pour anything, whether on a driveway in Davenport or a forecourt around Smethwick Green, check these. They take a couple of seconds.

- The cap. The AdBlue cap is often blue, or marked "AdBlue". The diesel cap normally is not. Read it instead of going by where it sits.

- Look at the size: the smaller filler neck is, on plenty of cars, the AdBlue one.

- A label inside your fuel flap often says which fuel goes where, on plenty of motors. Check for it.

- The handbook says which it lives if the filler isn't next to your diesel cap: your boot, or under the bonnet.

- Whoever had it before will know. Ask as you pick up a hire car or fleet car — at Holmes Chapel's car park, perhaps — not once the light comes on.

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

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

- Park then switch off. Not on a slope, not with the engine running, and not in a rush on the side of Moorhead Lane.

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

- The two under one flap? Then make sure the lid on your diesel filler is still shut ahead of lifting the bottle.

- Gently is best, through the bottle's own spout, till it's full or the bottle is empty.

- Before you start the vehicle, shut the cap and look a second time that the diesel cap never came off.

Find at step two or three that it's already gone into your diesel side? So stop just there.

Stage five is off limits.

## AdBlue in your diesel tank already, around Smethwick Green?

Do not start your motor: that's where the short order of things starts.

Leave your ignition off as well, since on plenty of diesels switching it on by itself runs your pump.

Topping up with diesel won't dilute it: instead, AdBlue drops to the base of your tank, just where the fuel is taken from.

The attendants at Gulf, BP or any forecourt will normally lend a hand to push your car clear when asked.

If you are on your own driveway around Smethwick Green, leave the vehicle where it stands.

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

The next junction means the place to leave when you are on the M6, under 3 miles from Smethwick Green.

Tell us roughly how far it went: a run towards Stoke-on-Trent, under 15 miles away, is a bigger job than a short hop across Smethwick Green.

## Our arrival in Smethwick Green, and what happens next

Our technicians come to the car wherever it has stopped, whether that's outside Brereton CofE Primary School, near Totem Pole or on your own drive.

Both the work and our price rest on three replies — which fluid, which amount, and if it's run — so our technicians ask.

During the phone call itself, you are told our quote — before dispatch.

Next: draining, then a thorough flush of the whole system.

AdBlue crystallises and is corrosive to some of the metals in a fuel system, and so it doesn't wash out on its own — which is why the flush counts more here than with petrol.

After the fuel filter has been flushed — or replaced, if required — fresh diesel is added, and finally the car gets tested.

Before we go, we start the engine and check that it is running properly.

Using pumps safe on a working forecourt and quiet enough to use outside a house at night, most jobs in which the engine has not run need about half an hour once we are there.

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

Before we get there, take a look at your policy; plenty carry cover for misfuelling.

## About Smethwick Green, for a moment

Smethwick Green is a small hamlet in Cheshire, situated inland at an elevation of around 80 metres. Smethwick Green lies near the villages of Illidge Green and Brereton Heath, and is part of the wider rural landscape of the North West. Smethwick Green is characterized by its predominantly detached housing stock, reflecting its relatively affluent and suburban nature. Smethwick Green is located approximately 11 miles from Stoke-on-Trent, making it a commuter base for the city.

## AdBlue drains across Cheshire, Smethwick Green included

Brereton Heath and Somerford are among the towns near Smethwick Green, a rural hamlet, that the same teams cover, throughout CW postcodes.

Give a postcode beginning CW11 2, and the van arrives quickest.

Your car stays put.

Our technicians drain it where it is — a side street near Davenport Methodist Church, a lay-by on the way to The Moss, a drive.

Awkward to pin down, like the back of All Saints' Chapel of Ease? Close to a county line? Checking beats assuming, and so phone.

## The short version for Smethwick Green drivers

Always, the cap; after that, the pour.

Petrol in Diesel drains it where it stands, anywhere around Cheshire, if AdBlue has gone in your diesel tank anyway — so leave it off then call 0333 366 0103.
