---
title: AdBlue in a Diesel Tank Ameysford: Explained
canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/ameysford-dorset/
location: Ameysford
county: Dorset
latitude: 50.819690
longitude: -1.902110
service: AdBlue in a Diesel Tank
updated: 2026-10-22
---

# Preventing AdBlue in a Diesel Tank in Ameysford: Why It Occurs

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

Normally, if the motor hasn't turned, it's drained and thoroughly rinsed where the vehicle sits in Ameysford.

The rest of this page explains why it happens and how to ensure it does not — useful if you are reading before it has happened.

## Two fillers, two tanks: AdBlue in a diesel car

No single fluid but two: that is how many modern diesels around Ameysford and Tricketts Cross carry, with diesel for your engine.

Kept in a tank of its own, AdBlue is sprayed into your exhaust stream to clean it.

Every tank has a filler of its own.

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

At the pump, the diesel side is topped up constantly.

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

It's in that gap that the mistake lives.

## How does AdBlue in your diesel tank occur in Ameysford?

Carelessness rarely explains it. What does is three things coming up together.

On a driveway off Forest Links Road before work, or in the car park at Elephant & Castle heading home: that is where the rushed top-up happens. Why the rush? As AdBlue runs low your car tells you, and if it's empty, limp mode kicks in.

Then the vehicle is new. A hire car, a new motor or a company car puts the fillers where your last one didn't, and the hand gets to for the cap it would have used on the old one.

Lastly, the spout goes in: a diesel filler or AdBlue one, it slides in just as easily, and after the tip starts, nothing halts it.

The same few seconds settle it, in the middle of Ameysford or out in West Moors.

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

Be it a Ameysford forecourt or a drive over in St Leonards Farm Park, spend a couple of seconds on these before any goes in.

- Blue and marking: an AdBlue cap is frequently blue, or says "AdBlue", where a diesel cap usually does not. Go by the cap, not its position.

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

- Check inside your fuel flap: plenty of vehicles have a label there saying which fuel goes where.

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

- The person who drove the car last. On a hire or company car picked up from somewhere like the car park outside Branksome, ask before you leave, not when the light comes on.

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

The day the light goes on, anywhere around Dorset, use this routine.

- Not in a rush on the side of Ameysford Road, not on a slope, not with your engine running: park then switch off first.

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

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

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

- Shut the cap, and look again — confirm your diesel cap remained shut the whole time. Only then, start the car.

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

Leave out step five entirely.

## AdBlue in the diesel tank already, in Ameysford?

Brief order, then. First: your motor remains off.

On many diesels your ignition alone runs the fuel pump, so do not switch the car on.

Diluting it with more diesel won't work, because AdBlue settles to the base rather than mixing — and that's where your fuel is pulled from.

Ask the attendants to help roll the car clear of the petrol pump if you're at a forecourt — the Murco, the Sainsbury's or somewhere else.

Leave it where it is if you are on your own driveway in Ameysford.

Already started? Pull over once it is safe, then turn off.

Ameysford sits under 25 miles from the M27; on it, use the next junction.

Tell us about how far it went: a run towards Salisbury, under 25 miles away, is a bigger job than a short hop across Ameysford.

## What happens when our technicians get there around Ameysford

We come to the car wherever it has stopped, whether that's outside St Mary's CofE First School & Nursery, close to War Memorial or on your own driveway.

We ask what went in, about how much, and if it has run, since those answers settle the work and our quote.

You hear that quote by phone, before anyone sets off.

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

AdBlue crystallises and is corrosive to some of the metals in a fuel system, so it does not wash out on its own — which is why the flush matters more with AdBlue than with petrol.

Testing comes at the end: before that, clean diesel goes in, and the filter is cleaned or replaced if necessary.

After that our engineers fire it up and confirm it runs smoothly before we go.

Using pumps safe on a busy forecourt and quiet enough to use outside a house at night, most jobs in which your engine hasn't run take roughly half an hour once our engineers arrive.

Payment is on the day, not upfront, and you receive the documents your insurer wants: an engineer report and a VAT invoice.

Many insurance policies include misfuelling cover, and so it is worth checking yours while we are on the way.

## About Ameysford, briefly

Ameysford is a small suburban area situated on the riverside in Dorset, with a relatively low elevation of 14 metres. Ameysford lies near the towns of West Moors, Ferndown, and Stapehill, and is approximately 17.9 miles from Salisbury. Ameysford has a population of around 793 people, predominantly living in detached houses. Ameysford is also within commuting distance to larger cities, being around 90.4 miles from London.

## AdBlue drains in Ameysford and across Dorset

Ferndown and Stapehill are among the places around Ameysford, a residential suburb, that the same vans cover, over BH postcodes.

The van reaches you fastest with a postcode starting BH22 9.

The vehicle doesn't need to shift.

Our technicians drain it where it is — a side street near St Anthony, a lay-by on the way to Ferndown Wayfarers Cricket & Sports Club, a drive.

Ring and ask instead of assuming if you are near a border, or somewhere hard to describe, like the back of Ferndown United Church.

## In short, for Ameysford motorists

Read the cap before you pour.

AdBlue in your diesel tank after all? Leave it off then phone 0333 366 0103; Petrol in Diesel drains it where it stands, across Dorset.
