---
title: Forder: AdBlue in a Diesel Tank, What Next
canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/forder-cornwall/
location: Forder
county: Cornwall
latitude: 50.401600
longitude: -4.236000
service: AdBlue in a Diesel Tank
updated: 2026-10-23
---

# AdBlue in the Diesel Tank in Forder: What Now?

What to do about AdBlue in a diesel tank comes down to one thing more than any other: whether your engine has been run since it was put in.

Wherever your car stands — Trehan, Forder — never run an engine that hasn't run yet.

Keep nothing on, phone 0333 366 0103, and count on a proper flush plus a drain, carried out right where your car stands around Forder.

If it's run, stop as soon as it is safe and switch off.

It is a bigger job, though step one does not change.

Further down: the situations our technicians see, wherever across Cornwall. Choose the one that fits.

## On a Forder forecourt with AdBlue in a diesel

Just at this point, nozzle still in your hand, it dawns on you that the cap you took off was the wrong one, right at the petrol pump.

It might be the Shell, or the BP, or another station around Forder.

The point: of all places to find out, this is the best.

Only your tank holds AdBlue; no part past it has taken it in.

Your move: stay out of the driver's seat, however much the queue wants clearing.

A few things: a shove into a bay with the attendants assisting, the receipt kept, and a call to us from where you stand.

Stuck beside the pump? Explosion-proof equipment keeps a busy forecourt sensible, so it can be drained where it is.

## At home in Forder with AdBlue in the diesel tank

Days had passed with the warning light on.

A bottle bought at the garage, emptied in at the driveway — and it's just by the recycling that the cap got your eye.

It occurs on driveways just off Castle Hill as regularly as anywhere.

The point: zero miles since makes this almost equal to spotting it at the pump.

AdBlue does not mix with diesel; it sinks to the bottom of your tank and waits there. Overnight doesn't change that.

What to do: leave the keys inside the house so no one moves the car in the morning. Then ring.

St Stephens or Forder: wherever your drive is, that's where it gets drained.

The pumps are quiet enough to use outside a house at night.

## AdBlue in a diesel and already driving around Forder?

Lumpy running, smoke, falling power or a glowing dashboard arrived a short way beyond the fill.

Somewhere along St Stephen's Hill or else heading to Plymouth — under 5 miles away.

What it means: the fuel system has pulled the AdBlue in.

It has been through your filter and the fuel lines and, the further you went, into the high-pressure fuel pump and the fuel injectors.

More driving, more starts: further it travels.

Pull in somewhere safe — that is the next job — then switch it off.

Forder lies under 50 miles from the M5; on it, pull off at the next junction instead of pushing on for the services.

Do not restart it to see if it has cleared; it will not have.

Call, and say how far the vehicle was driven.

## AdBlue in the wrong tank: hire, lease and company vehicles

You have had this vehicle barely a week.

Your own motor either does without AdBlue or puts it somewhere different, and so nothing told you the AdBlue inlet sits right next to the diesel.

It can happen to anyone, anywhere around Cornwall.

Meaning? Whichever applies above applies too — run or unrun — and one extra step.

Many hire and company agreements want the owner to approve work on the car.

What to do: ring the hire firm or your fleet manager first, then us. That's quicker settled before we get there than after.

Leave it off while the answer arrives, whether you are parked outside Saltash or close to Forder Community Centre.

## AdBlue in the diesel tank? Not sure, around Forder

Sometimes the fair answer is "I think so".

Too light, the bottle; a trace of ammonia round the filler; no clear recollection of which cap. Look familiar?

It might have been on a friend's drive in Antony Passage, or rushing by St Stephens (Saltash) Community Primary School & Nursery at the school run.

The point: the engine is not hurt by a little AdBlue spilled around the filler.

Inside your diesel tank, by contrast, AdBlue damages it.

Firing up the car won't tell you which, and if there is AdBlue in the tank it would suck it in.

What to do: treat it as if it went in. Don't crank it.

Ring with what you saw: we would rather find a clean tank than empty one after the motor has been run.

## Forder: what each AdBlue drain has in common

Whatever the case, a single opening applies.

Three things come when our engineers reach your car — on a forecourt, a driveway, a road by Trematon Castle or the car park outside Cecil Arms: the liquid, the quantity, and if the motor has been started.

Those replies determine this work, and you get our quote on the phone, before anyone heads out.

Emptying that tank comes first, followed by a full flush — more vital with urea than after petrol, because crystals and corrosion won't go on their own, no matter how long you wait.

Your filter is cleaned, or replaced where it needs to be; clean diesel goes in; and the car is tested.

Never started? Then roughly half an hour on site is most jobs.

The last step is starting the engine.

With clean diesel in, it runs while our engineers confirm it's running correctly, and then we go.

If it is noticed early, the car very rarely has long-term damage, and the entire job happens where it is.

Payment comes that day, never upfront. For your insurer, you get a VAT invoice plus a written report from the engineer.

Dig out your insurance before we're en route: cover for misfuelling is included in plenty of policies.

## About Forder and where it is

Forder is a small coastal village in Cornwall, situated near the city of Plymouth and overlooking the sea at an elevation of around 9 metres. Forder has a mix of housing types, but terraced homes are particularly prevalent, reflecting the village's history of development. Forder is close to several notable nearby places, including St Stephens, Trematon Castle, and Burraton Coombe. Forder remains a relatively small community, with a population of approximately 945 residents.

## AdBlue drains in Forder, and across Cornwall too

Over PL postcodes, the vans serving Forder — a coastal village — reach nearby places too, Trematon Castle and Burraton Coombe included.

Giving us your PL12 4 postcode pins you quickest of all.

Whether the car is on a lay-by on the way to Tincombe Park or in a car park in the middle of Forder, it doesn't need to move.

Wherever it stands, that's where it is cleared.

If you are somewhere hard to explain, near Higher Lodge or close to a border, ring and ask instead of guessing.

## The one-line version

Still unrun? Leave the car off then ring.

Whatever case fits, Petrol in Diesel takes over from there on 0333 366 0103, throughout Cornwall and in Forder — after you stop, turn off then phone, if it has run.
