---
title: AdBlue in a Diesel Tank Long Lawford? Read This
canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/long-lawford-warwickshire/
location: Long Lawford
county: Warwickshire
latitude: 52.380130
longitude: -1.307730
service: AdBlue in a Diesel Tank
updated: 2026-10-11
---

# Long Lawford: How Does AdBlue End Up in a Diesel Tank, and How Do You Avoid It?

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

Around Long Lawford, finding it before the motor turns normally leaves draining and a full flush on the spot.

If you are reading before it has happened, the rest of this page is about why it occurs and how to make sure it doesn't.

## AdBlue in a diesel motor: two tanks, two fillers

Diesel feeds your engine — yet many current diesels seen about Long Lawford and Church Lawford carry a second liquid too.

Your exhaust, not your motor, is where AdBlue ends up: dosed into the gas to fresh it, from a separate tank.

Different tanks, different fillers.

Some motors put the AdBlue filler in the boot or under the bonnet; a lot more have the two side by side behind one flap.

Filling your diesel side at the pump happens constantly.

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

It is in the gap that the error happens.

## How AdBlue in the diesel tank occurs around Long Lawford

It's hardly ever carelessness. Three things tend to line up.

Hurry follows from the warning. Your car warns you as AdBlue runs low, and a dry tank puts it into limp mode — so the top-up happens quickly, before work on a drive off Main Street, or heading home in the car park outside The Caldecote.

Unfamiliar vehicles come next, too. Hire cars, new vehicles and company motors place their fillers differently, and habit goes for the cap it used on the old one.

Third, the bottle fits: diesel filler or AdBlue filler, it goes in just as easily, and once the pour begins, no part halts it.

Little Lawford or the middle of Long Lawford: it is the same few seconds in both.

## The AdBlue filler and your diesel filler: telling them apart

Look at these first, on a forecourt in Long Lawford or a drive over in Cathiron. A few seconds, that's all.

- Blue and lettering: an AdBlue cap is often blue, or says "AdBlue", where a diesel cap normally does not. Go by the cap, not where it sits.

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

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

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

- Collecting a hire or company car, perhaps at the car park at Rugby? Ask whoever drove the car last before you set off, not once the light goes on.

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

A routine for the day the light comes on, wherever around Warwickshire that is.

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

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

- Finish once that tank is topped up or the bottle is empty; until then, pour gently through its built-in spout.

- Close the cap, then look once more — confirm the diesel cap remained shut throughout. Only then, start the car.

Discover during the second or third stage that AdBlue went into the diesel tank? That's where you stop.

Skip step five altogether.

## Already put AdBlue in your diesel tank around Long Lawford?

The short order of things, starting with no starting the engine.

The fuel pump starts on many diesels the moment the ignition is switched on — so leave it off.

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

If you are on a forecourt, whether it is the BP or the Texaco, ask the staff to help roll the car clear of the petrol pump.

Leave it where it is if you are on your own driveway around Long Lawford.

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

The next exit is where to come off when you are on the M6, under 3 miles from Long Lawford.

About how far did it go? Hopping across Long Lawford is smaller work than a run of under 10 miles towards Coventry, so say.

## What occurs when our engineers get there around Long Lawford

We come to your car wherever it has stopped, whether that's outside Long Lawford Primary School, near Long Lawford Memorial Hall or on your own driveway.

Both the work and the quote rest on three replies — what fluid, which amount, and if it has run — so our technicians ask.

You get that price on the phone, before anyone heads out.

Then that tank is drained and your system cleaned thoroughly.

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

Testing is last: before that, clean diesel is added, and the fuel filter is flushed or changed as needed.

After that our technicians fire it up and confirm it runs correctly before leaving.

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

You pay on the day, with nothing upfront, and get a VAT invoice and an engineer report for your insurer.

Plenty of insurance policies include misfuelling cover, and so it is worth checking yours whilst we are on the way.

## About Long Lawford itself

Long Lawford is a village in Warwickshire, situated inland at an elevation of 94 metres, approximately 8.6 miles east of Coventry. Long Lawford has a population of around 2350 people, predominantly living in detached houses. Long Lawford is close to nearby places such as Little Lawford, Newbold on Avon, and New Bilton, and is about 78.5 miles northwest of London.

## AdBlue drains across Warwickshire, Long Lawford included

Over CV postcodes, our teams that cover Long Lawford — a rural village — work the surrounding places too, New Bilton and Newbold on Avon included.

Fastest of all: quote a CV23 9 postcode to the van.

The vehicle remains put.

A driveway, a lay-by on the way to Addison Road Recreation Ground (New Bilton), a side street near St John: our engineers drain the vehicle where it stands.

Assuming doesn't help behind Church of St Botolph, on a boundary, or somewhere awkward to describe; ring and ask.

## The short version for Long Lawford drivers

Pour no AdBlue until you've read the cap.

Even so AdBlue in your diesel tank? Petrol in Diesel can drain it where it is, anywhere in Warwickshire: switch the car off then ring 0333 366 0103.
