---
title: Petrol in a Diesel Car Funtley — Fuel Drain
canonical: https://www.petrolinadieselcar.co.uk/petrol-in-diesel/funtley-hampshire/
location: Funtley
county: Hampshire
latitude: 50.871150
longitude: -1.202720
service: Petrol in a Diesel Car
updated: 2026-10-02
---

# Funtley: Put Petrol in a Diesel Car?

Do not fire up the engine. While the fuel is still inside your tank and the motor has not run, a tank drain is nearly always all it needs — and that's settled in the next few minutes, not by how much went in. Petrol in Diesel drains and cleans wrong-fuelled vehicles where they sit, all over Funtley and the remainder of Hampshire, on the forecourt, at the roadside or on a driveway.

A single ring to us will be plenty: our engineers can tell you what comes after this. Do this first.

## What to try next about petrol in a diesel

- Do not crank it. Fired up all the same? Then don't believe it. Diesel in a petrol motor generally will not run, so the person stops and the damage halts with them. Petrol in a diesel? It starts. It ticks over. It drives off normally, for a few miles. Motorists get that reversed. It is not all right — that fuel system is grinding every mile you cover.

- Diesel burns, and before it ignites it greases — the high-pressure pump, its injectors. Petrol handles only the burning. So leave your ignition be too: switching it on is often sufficient to prime the system, and priming pulls petrol from the tank into just those components.

- Never pour diesel on top to water down it. A diesel fuel system won't accept petrol by percentage the way that guidance suggests, and topping up clears nothing — it merely hands you a bigger tank of the same mixture. The octane makes no difference either: super unleaded is simply petrol.

- A vehicle that hasn't moved is the easiest one to sort, and so stay where you are if you safely can. Pulled up on the verge on Funtley Lane? Hazards on, and leave it there. An awkward spot works for us better than a started engine.

- Know where you are before calling. A postcode starting PO17 5, and the name of whatever is closest to you. Otherwise our van circles rather than showing up.

- Call 0333 366 0103. Say what was put in, about how much, and also whether your car has started. Those three details determine your whole visit.

How many miles you went is what our technicians query, not how long the car has been stood — and here is why. Diesel has two tasks on its way through an engine: it ignites, and before burning it greases the high-pressure pump and the injectors. Petrol does the first only. So a fast top-up on the drive in, the realisation coming close to eleven, and a diesel Renault Clio standing at Fareham since quarter past eight tells us those couple of miles were driven with the pump labouring on a fluid stripped of a lot of its protection. Phone then leave it right where it is.

## At the forecourt: clearing petrol from a diesel

Pumps are where this work often begins, and where a good chunk of that ends.

We operate on petrol station forecourts routinely, with the owner's consent, so if you're still at Texaco that is normally where this drain gets done.

Nowhere but a garage can it be stopped with the motor still untouched.

The few seconds between reading the till receipt and going for the keys determine how much requires flushing. Anywhere other than a forecourt — a car park, a drive, a lay-by — the car was started and driven to get there, so fuel was drawn from your tank, through your filter and into your high-pressure pump. That means the lines and the fuel filter require rinsing as well as the tank. It is not a calamity, and our engineers can still put it right where the vehicle is.

Attendants will generally help out pushing it away from the petrol pump, which lets the next customer get through. Accept the help.

Cranking it just to shift four car lengths is not.

## Funtley and the places beside it

Funtley is a coastal village, and so our team are out to the town and to the areas around it on the usual journeys: Knowle, Hill Park, Lee Ground, Crockerhill and Heathfield.

Our technicians do come. Those names above are just the immediate neighbours, and a page exists for nearly all places across Hampshire, and so an absence from the list is not an absence from our coverage.

Assuming is the thing to skip, especially on the boundary or somewhere your satnav fails. Ring us to ask.

The area the page covers is on our map.

The car never needs to move to us. We work over the lot — roadside, forecourts, driveways, car parks.

Move the vehicle out of the gateway and sort it out later — that is what somebody will say, and it's wrong. Stopped on the zig-zags by Orchard Lea Junior School, a misfuelled diesel Ford Focus is a hassle and nothing worse. Fired up three more times for good manners, it's no longer a tank issue but a fuel system one, as priming occurs with every start and more petrol goes past the filter towards the pump. Let everyone moan. Phone us.

## Kerbside call-outs across Funtley

Not everybody finds a sensible spot to pull over.

Hazards going at a lay-by somewhere, or pulled onto the verge beside Funtley Road because you worked it out after setting off — our technicians take that call often enough that it is the normal kind.

Sit beside the vehicle while it is sensible to be in it, but out of it if it isn't.

Never fire it up to reach a better spot. It will go — a diesel on petrol generally obliges — and each mile of obliging pulls the blend deeper into the system.

Our van coming to a difficult spot is no problem for us, and it's a lot better for the vehicle than carrying on.

## Petrol in a diesel, but the motor has moved

under a mile from Funtley, your M27 is what counts here.

A wrongly fuelled diesel will frequently get you onto it and some way along before anything feels wrong, while the signs when they arrive are normally a drop in power, a rough idle and some smoke instead of a clean stop.

The next safe exit is the one to take. Switch off there, and leave the restarting alone.

Long drive? Anything close to the under 10 miles to the nearest city and you should assume the lot — filter, pump, injectors, all of that arrived at by the mixture. Say that on the call, because it alters what goes in the van.

Out there happy, back sluggish. If that was the trip to Great Beamond Coppice, look at the tank. Diesel gets diluted by petrol, and thin fuel slips past the tight gaps meant to build injection pressure — so every additional mile your diesel Vauxhall Astra covered, the less pressure it held onto. Somewhere sensible, turn off, ring us.

## A little about Funtley

Funtley is a small village in Hampshire, situated near the coast and approximately 7 miles north of Portsmouth. Funtley has a population of around 535 people and is characterised by detached housing. Funtley sits at a relatively low elevation of 23 metres, close to nearby places such as Knowle and Hill Park. Funtley is located within the South East region of England, about 64 miles south-west of London.

## What our engineers do when our engineers reach you around Funtley

- The replies alter the work, which is why we ask before quoting: what got in, how much of that, and whether the engine has run.

- Your tank is drained of everything.

- What is left in the fuel system should not be what created the issue, and so the lines get cleaned and the filter cleared.

- Priming follows, once new diesel is in.

- After it's started, our engineers confirm it runs correctly on fresh diesel.

The car is then ready for you to pull away.

Lasting damage is very rare when it has been noticed soon, and since all of this is done where the vehicle is, it never has to go to a garage.

Why so firm about leaving your keys alone? Because your pump is ahead of your injectors, and a wearing one sends whatever it sheds on with the fuel. Phone us. Leave the Audi A6 near Al Mahdi Centre.

## Funtley AdBlue removal is a different problem

AdBlue rather than petrol? Then the opening step is unchanged — your motor remains off — while the issue beneath it is a different one altogether.

Petrol does two things to diesel: weakens it, and takes away the lubrication the system depends on.

AdBlue? Urea dissolved in water. Tip that in with the diesel and you get corrosion instead, plus deposits.

AdBlue removal around Funtley has a page of its own with the full story on it, including why it's frequently the more serious of the two. We handle both.

A vehicle you picked up two days ago gets driven further before anybody sees anything, which is the hire and courtesy issue in one sentence — and how far it went is what settles the quantity of petrol arriving at your injectors. Nothing careless about the mistake itself: a current diesel filler neck accepts the narrower petrol nozzle with almost no resistance, and so unfamiliar places see most of these. Phone us from wherever you are, close to Hill Park Baptist Church or not, and we will come to the Citroen C3.

## How much is a petrol-in-diesel drain in Funtley?

Honestly, no single price belongs on a page like this. This job varies. Here is what varies it:

- This is the main one: whether your motor has been started, or driven.

- How much of the wrong fuel went in, set against how much the tank holds.

- Whether it's petrol or AdBlue.

- Access: the vehicle's position, and whether working on it there is sensible for our van.

Tell us what your car is, how much got in, and if the motor has run. A clear answer comes back, not a range.

For the vehicle at home that is going nowhere and isn't time-critical,  is fine too.

## Things our engineers get about petrol in diesel in Funtley

## I am on a forecourt around Funtley. Can you drain it here?

Yes — forecourts are where a fair portion of this takes place.

Tell us which one you are at when you phone and we'll tell you whether our technicians can work there. With the site's consent we work at Sainsbury's and the other forecourts nearby all the time.

## Is there a safe quantity of petrol in a diesel?

Ratio decides it rather than litres — and more than either, whether your engine has run.

Five litres into an almost dry tank isn't five into a full one, no. But both land on the same query in the end: has that blend been sucked right through, or has it not?

## Already driven it with petrol in the diesel? What then?

Switch off somewhere sensible, then keep it that way after you stop.

Not restarting it is the single most helpful thing available to you now. Driving does shift the issue out of the tank then into the pump and injectors, yes, and it stays recoverable much more often than drivers expect.

## My warranty — does a fuel drain void it?

No. Carried out properly, clearing and rinsing is no alteration at all, and the warranty from your manufacturer is untouched by it.

Another reason to leave it turned off: running a diesel on petrol is the thing likelier to cause a dispute with one.

## Adding two-stroke oil, then driving home

No. It belongs to a separate issue from a separate era, and petrol has thinned something no oil of that kind replaces.

That tank still has petrol in it later on, and your pump still has to cope with it.

## A main dealer for petrol in a diesel — essential?

There is no need to take it to a franchised dealer, as our engineers drain and clean your car wherever it is.

## Still with your vehicle?

Keep the car switched off.

If you have already driven the vehicle, pull in somewhere sensible, switch it off and keep it off.

Cold and still, a car is in the best place available — and drivers fear this a lot more than the recovery rate warrants.

Clearing wrongly fuelled motors, Funtley and the rest of Hampshire, wherever they are. Kerbside. Forecourt. Home.
