---
title: AdBlue in a Diesel Tank Shield Row? Read This
canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/shield-row-durham/
location: Shield Row
county: Durham
latitude: 54.877440
longitude: -1.687170
service: AdBlue in a Diesel Tank
updated: 2026-10-07
---

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

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

Usually, when the engine hasn't run, it is emptied and thoroughly cleaned where the vehicle sits in Shield Row.

Reading before the event? In that case what follows covers how it comes about and what to stop it ever happening.

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

Plenty of current diesels on the roads round Shield Row and No Place carry two liquids, not one. Diesel goes to the motor.

The exhaust, not the engine, is where AdBlue ends up: dosed into the fumes to clean it, from its own tank.

Separate tanks, separate fillers.

Under one flap, side by side: that's the layout on many vehicles. Elsewhere, AdBlue's filler is beneath the bonnet or in the boot instead.

Diesel goes in on each forecourt call-out, week in, week out.

Seldom filled, AdBlue normally comes from a bottle, tipped by a driver who must stop and think which filler to use.

That gap is where the error lives.

## AdBlue in your diesel tank in Shield Row: how it occurs

It's seldom carelessness. Three things tend to line up.

Hurry comes from the warning. The car tells you as AdBlue runs low, and a dry tank sends it into limp mode — so the top-up gets done in a rush, before work on a drive off Pelaw Avenue, or on the way home in the car park outside The Ball Alley.

New-to-you vehicles are second, too. Rentals, new vehicles and company vehicles put their fillers in new places, and the hand reaches for the cap it used on the old one.

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

Whether it happens in Kip Hill or the middle of Shield Row, it's the same few seconds.

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

Whether a Shield Row forecourt or a driveway out in Oxhill, take a few seconds over these before any goes in.

- Check the cap rather than going by position: AdBlue caps are often blue or marked "AdBlue", and diesel caps normally aren't.

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

- The flap. Look inside your fuel flap for a label. Plenty of vehicles say there which fuel goes where.

- Cannot see it next to your diesel filler? In that case look below the bonnet or inside your boot — the handbook says where.

- Whoever had it before will know. Ask as you collect a rental or fleet car — at Chester-Le-Street's car park, say — rather than when the warning appears.

## Topping up AdBlue without it reaching your diesel tank

The day the light comes on, anywhere in Durham, use this routine.

- Stop somewhere level, motor off, with time in hand — not hurried on the side of Hillside Gardens.

- Locate the AdBlue filler, check the cap, and say the word "AdBlue" aloud as unscrewing it. It seems silly. It does the trick.

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

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

- Before starting your car, close the cap and look a second time that your diesel cap never came off.

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

Stage five is out.

## Shield Row: already put AdBlue in the diesel tank?

What follows is a short order of things, beginning with not starting your motor.

Keep your ignition off as well, since on many diesels switching it on by itself starts the fuel pump.

Thinning it with extra diesel won't work, because AdBlue sinks to the bottom instead of mixing — and that is where the fuel is sucked from.

On a forecourt — Esso, Texaco or any other — the staff will usually help push the vehicle clear, when you ask.

At home in Shield Row? So your car stays put.

Already run? Stop when it is sensible, then switch off.

On the A1(M), under 5 miles from Shield Row, that means the next exit.

A short hop across Shield Row is a smaller job than a run towards Newcastle upon Tyne, under 10 miles away, and so tell us about how far it went.

## When our technicians turn up in Shield Row, what happens?

The van comes to the car anywhere it has come to rest — your own driveway, near Pine Feature, or outside Shield Row Primary School.

The answers determine this work and the quote, so we ask what got in, roughly how much, and if it has run.

You get that quote on the phone, before anyone sets off.

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

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

Once your filter is flushed — or renewed, if needed — fresh diesel goes in, and then the car is tested.

Before we go, we start it and make sure that it is running properly.

If your motor has not run, most jobs take about half an hour once we are there, using pumps that are safe on a busy forecourt and quiet enough to use outside a house at night.

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

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

## About Shield Row

Shield Row is a suburban area in County Durham, situated inland at an elevation of 172 metres, approximately 7.6 miles from Newcastle upon Tyne. Shield Row forms part of the wider Stanley area, with nearby places including Kip Hill and East Stanley. Shield Row has a population of around 3288 people, predominantly living in terraced housing.

## AdBlue drains around Shield Row, and Durham beyond

Shield Row is a residential suburb, and our vans that cover it also work the places around it, East Stanley and Stanley among them, across the DH postcode area.

A postcode starting DH9 0 gets the van to you fastest.

Your car stays where it is.

A driveway, a lay-by on the way to View Lane Park, a side street close to Log: our engineers drain the car where it is.

If you're close to a border, or somewhere hard to explain like the back of Stones, ring and ask instead of assuming.

## In short, for Shield Row motorists

Read the cap before you pour.

Even so AdBlue in the diesel tank? Petrol in Diesel can empty it where it is, anywhere in Durham: keep it off then call 0333 366 0103.
