---
title: AdBlue in a Diesel Tank Sibertswold: Explained
canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/sibertswold-kent/
location: Sibertswold
county: Kent
latitude: 51.186660
longitude: 1.229660
service: AdBlue in a Diesel Tank
updated: 2026-10-05
---

# AdBlue in a Diesel Tank in Sibertswold: How It Happens and How to Avoid It

Pause here for a moment if the diesel tank already holds AdBlue in it: ignition off, motor off, and ring 0333 366 0103.

Normally, if your motor hasn't turned, it's drained and fully rinsed where the car is in Sibertswold.

Here in advance? In that case what follows explains how it comes about and how to prevent it ever happening.

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

Many modern diesels in Frogham, as well as Sibertswold, run on two liquids; the engine gets just the diesel.

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

Each tank has its own filler.

Plenty of cars have a single flap for both, whereas some move the AdBlue filler to the boot or under the bonnet.

The diesel side is topped up at the petrol pump all the time.

The AdBlue side is fuelled far less commonly, normally from a bottle, and normally by someone who has to stop and think where it goes.

Mistakes happen in that gap between them.

## How AdBlue in the diesel tank occurs around Sibertswold

Rarely is it carelessness: normally three things line up.

To start with, the warning. Low AdBlue triggers a message from your car, and letting it run dry leads to limp mode — hence a hurried top-up, perhaps before work off Eythorne Road, or at The Bell on the way home that evening.

Then, your hand reaches for the cap it would have used on the old car — because a rental car, a new vehicle or a company car places the fillers somewhere your last one did not.

A spout-topped bottle finds no obstacle at a diesel filler no more than at an AdBlue one. So the pour, once started, carries on.

The same few seconds decide it, in the middle of Sibertswold or out in Halfway Street.

## Telling the AdBlue filler from your diesel filler

A few seconds is all the checks take — so run through them before you pour anything, on a driveway in Woolage Green or a forecourt around Sibertswold.

- Blue and lettering: an AdBlue cap is often blue, or says "AdBlue", where a diesel cap normally doesn't. Trust the cap, not where it sits.

- On plenty of cars, the size tells: AdBlue gets the smaller filler neck.

- A label inside your fuel flap frequently says which fuel goes where, on many motors. Check for it.

- Can't find it next to your diesel filler? Then check below the bonnet or in your boot — the owner's manual says which.

- The previous driver knows. Check as you pick up a rental or company car — from Shepherds Well's car park, say — rather than when the warning comes on.

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

A routine for the day the light comes on, wherever across Kent that is.

- Not in a rush on the side of Westcourt Lane, not on a slope, not with your engine running: park and switch off first.

- Silly as it sounds, speaking "AdBlue" aloud while you unscrew the cap works — after you have found the filler and read it.

- The diesel cap stays on. When the two share a flap, make sure it is shut before the bottle comes up.

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

- Shut the cap, and check once more — confirm your diesel filler remained closed the whole time. After that, start your car.

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

Don't carry on to stage five.

## AdBlue in the diesel tank already, around Sibertswold?

Then the order of things is short. Do not start your engine.

On plenty of diesels your ignition alone runs the fuel pump, so don't switch it on.

Diluting it with extra diesel fails, because AdBlue settles to the base instead of mixing — and that is where the fuel is sucked from.

Ask the attendants to help roll your car away from the petrol pump if you're on a forecourt — the Pace, the Esso or anywhere else.

Leave it where it is if you're on your own drive around Sibertswold.

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

Sibertswold sits under 10 miles from the M20; on it, use the first junction.

Roughly how far did it go? Hopping across Sibertswold is smaller a job than a trip of under 10 miles towards Canterbury, and so say.

## Sibertswold: what takes place when our technicians arrive

Wherever the car has stopped, whether outside Shepherdswell Church of England Primary School, beside Shepherdswell Village Hall or at home, the van comes to it.

The answers settle the work and the quote, so we ask what was put in, about how much, and whether it's run.

During the call itself, you hear our price — ahead of dispatch.

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

Not like petrol, AdBlue forms crystals and attacks certain fuel-system metals, and none of it washes away by itself. Hence it matters more.

After your filter is flushed — or renewed, if needed — fresh diesel is added, and then your vehicle gets tested.

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

Most jobs are finished in about half an hour once our engineers get there, provided the engine hasn't run — and the pumps our engineers use are fine on a busy forecourt yet quiet at night beside a house.

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

It's worth looking at your insurance while we travel to you: misfuelling cover is included with plenty of policies.

## About Sibertswold and where it is

Sibertswold is a small village in Kent, situated inland at an elevation of around 92 metres, approximately 9 miles from Canterbury. Sibertswold has a population of around 1004 people, predominantly living in detached houses. Sibertswold is close to other small villages such as Halfway Street, Coldred, and Barfrestone, and is about 62 miles from London.

## AdBlue drains around Sibertswold and across Kent

Sibertswold is a rural village, and the teams that cover it also work the towns near it, Coldred and Barfrestone among them, across the CT postcode area.

The van reaches you fastest with a postcode starting CT15 7.

No need to shift the car.

Wherever it sits — beside 18th Dover (Shepherdswell) Scout Group, in a layby heading to Knees Woodland, at home — that's where it is drained.

If you're close to a border, or somewhere hard to describe like the back of Shepherdswell (EKMR), ring and ask rather than assuming.

## For Sibertswold people, the short version

First, the cap; then, the pour.

AdBlue in your diesel tank regardless? Keep the car off then ring 0333 366 0103; Petrol in Diesel drains it where it stands, throughout Kent.
