---
title: AdBlue in a Diesel Tank Rosliston? Read This
canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/rosliston-derbyshire/
location: Rosliston
county: Derbyshire
latitude: 52.748320
longitude: -1.642000
service: AdBlue in a Diesel Tank
updated: 2026-10-24
---

# Preventing AdBlue in a Diesel Tank in Rosliston: Why It Happens

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

A drain and a thorough flush, carried out right where the car stands around Rosliston, is normally what it needs when caught before your motor runs.

Reading in advance? In that case the rest covers how it happens and what to prevent it happening at all.

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

Many newer diesels on the roads about Rosliston and Coton Park carry two liquids, not one. Diesel goes to your motor.

The exhaust, not the engine, is where AdBlue goes: sprayed into the fumes to fresh them, from its own tank.

Different tanks, separate fillers.

On a lot of motors the two sit side by side under the same flap; on others the AdBlue filler is in your boot or under the bonnet.

Filling the diesel side at the pump goes on all the time.

Much less regularly, the AdBlue side gets filled — normally from a bottle, by someone working out where it goes.

That gap is where the mistake lives.

## Rosliston: how AdBlue in your diesel tank takes place

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

The warning comes first. As AdBlue runs low the car tells you, and if it runs out altogether, your vehicle drops into limp mode. So the top-up is done in a hurry: on a drive off Holdon Croft before work, or in the car park at The Bull's Head on the way home.

Then, your hand goes for the cap it would have used on the old vehicle — since a hire car, a new motor or a company car places the fillers where your last one did not.

And the bottle fits. A bottle with a spout goes into a diesel filler as easily as an AdBlue one, so nothing stops the tip once it has started.

The same few seconds decide it, in the middle of Rosliston or out in Caldwell.

## Telling the AdBlue filler from the diesel filler

Before you tip anything, whether on a driveway in Linton or a forecourt in Rosliston, check these. They take a couple of seconds.

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

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

- A label inside the fuel flap often shows which fuel goes where, on plenty of vehicles. Check for it.

- The handbook. If the filler isn't by the diesel cap, it's 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 Burton-On-Trent, ask before you leave, not when the light comes on.

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

Wherever in Derbyshire the light comes on, this is a routine for that day.

- Not in a rush on the side of Main Street, not on a slope, not with the motor running: park and switch off properly.

- Silly as it sounds, saying "AdBlue" out loud as you unscrew the cap does the trick — once you've found the filler and read it.

- Both under a single flap? So confirm the cap on the diesel filler stays shut before raising the bottle.

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

- Close the cap, then check again — confirm your diesel cap stayed closed throughout. After that, start the car.

Stop there if you find, at step two or three, that you have already poured into the diesel side.

Don't carry on to step five.

## Rosliston: already put AdBlue in your diesel tank?

Then the order of things is short. Don't start your engine.

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

Thinning it with more diesel fails, because AdBlue settles to the bottom rather than mixing — and that's where the fuel is drawn from.

Ask the staff to help roll the vehicle clear of the pump if you're on a forecourt — the JET, the another forecourt nearby or anywhere else.

Your own drive in Rosliston is the place it stays.

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

The next exit means the place to come off when you're on the M42, under 10 miles from Rosliston.

A short hop across Rosliston is a smaller job than a run towards Lichfield, under 10 miles away, so tell us about how far it went.

## Rosliston: what takes place when our technicians turn up

Outside Rosliston CofE Primary School, near St Marys Church or on your own drive: wherever the vehicle has stopped, we come to it.

We ask what went in, about how much, and if it has run, since the replies decide this work and our quote.

The quote is given over the phone, ahead of any van leaving.

Then that tank is emptied and the fuel system cleaned thoroughly.

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

The filter flushed or, where needed, swapped; clean diesel in; then a test of your car.

The engine is fired up next and checked to make sure it runs properly, all before our engineers head off.

Using pumps fine on a busy forecourt and quiet enough to use outside a house at night, most jobs in which the motor has not run take about half an hour once our technicians arrive.

The insurer will ask for an engineer's report and your VAT invoice, and you get both at the end. Payment comes on the day, with no money upfront.

It's worth checking your policy while we travel to you: misfuelling cover comes with plenty of policies.

## About Rosliston, briefly

Rosliston is a small village in Derbyshire, situated in the East Midlands region of England, with a population of around 684 people. Rosliston sits at an elevation of 79 metres, approximately 9 miles from Lichfield and 107 miles from London, and is characterised by its predominantly detached housing. Rosliston is surrounded by other nearby villages, including Caldwell, Coton in the Elms, and Walton-on-Trent, in a rural inland setting.

## Rosliston and Derbyshire: AdBlue drains across the area

Being a rural village, Rosliston shares its vans surrounding areas — Coton in the Elms, Walton-on-Trent — right across DE postcodes and the surrounding area beyond.

Quickest of all: give a DE12 8 postcode for our van.

No need to shift the vehicle.

Anywhere it sits — beside Rosliston Village Hall, in a layby en route to Snowdrop Wood, at home — that is where it gets drained.

Assuming won't help at the back of Sundial, close to a boundary, or somewhere hard to describe; phone and ask.

## In short, for Rosliston people

Tip no AdBlue till you've read the cap.

Even so AdBlue in your diesel tank? Petrol in Diesel will drain it where it is, anywhere around Derbyshire: keep it off then call 0333 366 0103.
