Put Petrol in a Diesel Car in Fleetend? Don't Start It
If you have not fired up the engine as yet, do not. A fuel drain and nothing more is almost always what a vehicle needs while the petrol is still in your tank and your engine has not yet turned over, which is why it's the next few minutes that matter, not how much went in. Petrol in Diesel travels to the car wherever it has come to rest in Fleetend or the remainder of Hampshire, on the forecourt, at the roadside or on a drive, and drains and cleans it there. Ring us and we will explain what comes from here before you do any more.
Petrol in a diesel: what to do now
- Feed a petrol motor diesel and it will usually refuse to run at all, so the person stops there and so does the damage. Give a diesel petrol and the thing starts, it idles, it moves off — fine for several miles. Most people have that backwards, which is the bit they get wrong about petrol in a diesel in particular. So never start the vehicle. And if started, never rely on it: the fuel system is wearing down while you drive.
- Diesel burns, and before it combusts it protects — that injection pump, its injectors. Petrol manages only the burning. So leave the car's ignition be also: turning it on is frequently all it takes to prime your system, and priming pulls petrol from the tank into precisely those components.
- Do not put diesel on top to water down it. A diesel fuel system does not tolerate petrol by percentage the way that guidance assumes, and topping up clears nothing — it simply gives you a fuller tank of the same mix. The octane makes no difference either: super unleaded is just petrol.
- Remain where you are if you reasonably can. A vehicle that has not shifted is the simplest one to handle, and our team would sooner drive to a tricky spot than have it started. If you are stopped on the verge on Fleet End Bottom, switch the hazards on and keep the car there.
- Before you dial, work out your whereabouts. Anything next to you with a name on it, plus a postcode that starts SO31 9 — that's what settles whether our van arrives or circles.
- What got in, about how much, and also whether the motor has started — these three answers decide the whole job. Dial 0333 366 0103 then tell us.
Your high-pressure pump spent that morning drive working on a fuel that had given up a lot of the protection it is designed around. Diesel protects that pump, and the injectors with it, before any of your fuel burns; petrol does the burning and none of the lubricating. So take a diesel Volkswagen Tiguan, filled at quarter past eight, driven in to work, and parked standing at Swanwick till the penny drops around eleven. Three hours of sitting have altered nothing about it. The few miles before that changed a lot, which is why the question our engineers put to you is about mileage not hours. Ring us. Keep it just where it is.
Every restart primes the lines and drags more petrol past the filter and into your pump. So a misfuelled diesel BMW 3 Series on the zig-zags outside Locks Heath Junior School is an inconvenience, whereas the same motor started three more times to be courteous is a fuel system rather than a tank. A passer-by will advise you to shift the vehicle out of that gateway and fix it later. Please don't. Stay put, let people moan, then give us a call.
Three answers decide most of the work: what got in, roughly how much, and whether your engine has run since. We ask for those answers as soon as we reach your car in the car park at The Jolly Farmer. After that the contaminated mix comes out of the tank, the lines are cleaned, and where your Peugeot 308 has a serviceable filter, it comes off. After fresh diesel is in and the fuel system primed, we fire it up and check it runs smoothly before you drive away.
Pulled off the forecourt, read the till receipt, and left your diesel Ford Focus up close to St Marys a few hundred yards later? That's about as well as this goes once your engine has turned. Phone us then leave the car off. The short distance genuinely helps, but it was still a start and a drive, and so thinned fuel has got to the filter and your pump — which is why our technicians flush your lines instead of only clearing that tank.
Flushed, not drained — that is what a diesel Mercedes A-Class which got as far as Lockswood Library needs. Running a diesel puts that mixture into the fuel filter, the fuel lines, your pump and its rail, none of which empties with your tank, so by now your tank holds the smaller part of the problem.
Pump-side drains for petrol in a diesel
Forecourts are where this work usually kicks off, and where a big portion of it finishes. If you're still at the forecourt at Esso, that is usually where the drain gets done — we operate on station forecourts routinely, with the site's permission.
At a garage, it is spotted with the engine never fired, and no place else manages that. Anywhere else — a car park, a driveway, a lay-by — your car was fired up and driven to get there, which means fuel was drawn from the tank, through your filter then into your high-pressure pump. That's not a calamity, and we can still put it right where it stands. It does mean the lines and your filter need rinsing as well as your tank, and that is decided by the few seconds between reading your receipt and going for the keys.
Clear of the pump, the next customer can get by — so yes, let the attendants help you move the vehicle. Very much worth doing. Four car lengths is not worth a restart.
Fleetend plus the places next to it
Being a residential suburb, Fleetend sees a steady visit, whilst the areas nearby go along on the same trip: Hook and Warsash, Titchfield Common and Abshot, Newtown.
There are pages for the majority of locations across Hampshire, and the ones mentioned above are just the closest neighbours — so yours being missing from that list means nothing about if our engineers come. Phone to ask instead of presuming — county lines above all, and anywhere a satnav tends to misread.
Use our map for the ground shown on this page. The vehicle doesn't need to travel to us. We operate throughout the lot — kerbside, forecourts, driveways, car parks.
Fleetend: stuck where you pulled up
A chance to pull in somewhere sensible does not fall to everybody. Set off, then twigged? Finished up along the verge on Dibles Road (East), or stuck in some lay-by with the hazard lights flashing? That is a normal call here. Not a rare one.
Clear of the motor while it is not wise to be in it, with it if it is. Do not fire up your motor to nurse the car somewhere better — a diesel running on petrol will frequently oblige, and every mile it obliges for is dragging that mixture further into the system. However tricky the spot, it's no bother for us to get to it, and that's a lot better for the vehicle than pressing on.
A few miles on petrol in a diesel: what next?
under 3 miles from Fleetend, the local M27 is what counts now. Lost power, a lumpy idle, smoke: those are the symptoms when they appear, instead of a neat stop — and a wrongly fuelled diesel will often get you onto it and some way along before anything seems wrong at all.
The first safe exit is the one to take. Switch off there, then leave the restarting alone. It alters what our engineers bring, and so mention it when you phone: on a longer drive — anything close to the under 10 miles to the nearest city — assume the petrol has been through the filter, the pump and the injectors.
Where is Fleetend?
Fleetend is a coastal suburban area in Hampshire, situated near the cities of Southampton and Portsmouth. Fleetend sits at an elevation of 17 metres, close to the Solent Strait and within commuting distance of major employment centres. Fleetend is characterised by its predominantly detached housing stock and forms part of the larger South East England conurbation.
The call-out in Fleetend, step by step
- Three things get asked before any quote — your fuel that went in, the quantity, and if anything has been run since. Each answer changes the work.
- Our technicians drain that tank of the tainted fuel.
- Lines cleaned, filter cleaned. Whatever remains later on isn't the thing that caused the issue.
- Fresh diesel goes in, and then your system gets primed.
- It is run with fresh diesel in it, and we check that it's running smoothly.
Your car is then ready for you to pull away. There's no need to go to a garage at any stage, as the work is all done where your car is, and when it is noticed soon, lasting damage is very uncommon.
A different problem: AdBlue in a diesel tank around Fleetend
The fault isn't the same, though the first step is — never start it — if what went in was AdBlue rather than petrol. The protection a fuel system relies on is stripped away by petrol, which weakens your diesel. AdBlue is urea in water, and in a diesel tank it causes corrosion and build-up in its place.
AdBlue removal in Fleetend has a page of its own with the details on it, including why it is frequently the more significant of the two. We handle both.
Fleetend prices for a petrol-in-diesel fuel drain
What shifts the price is laid out below, since the job is not one job and our engineers can't honestly put a single number on this page.
- Whether the engine has been run or driven. This is the main one.
- How much of the wrong fuel was put in, weighed against how much the tank takes.
- AdBlue or petrol, whichever got in.
- Where is it? And can our van get to it and work there sensibly?
The car, the quantity, whether it has run — give us those and the answer comes back straight and not as a range. Car at home, going nowhere, nothing time-critical about it — is good for that.
Petrol in diesel: everyday questions in Fleetend
I'm on a forecourt around Fleetend. Can you drain it here?
Yes — forecourts are where a big portion of this gets done. Regularly, provided the site consents: BP, plus every other forecourt nearby. Say on the phone where precisely you have stopped. Whether we can work in that location is something we answer on the spot.
How much petrol is too much for a diesel?
It rests on the proportion instead of the litres, and a lot more on whether the engine has run. Five litres into a nearly dry tank isn't five into a full one, no. But both land on the same question in the end: has that mixture been pulled right through, or has it not?
I put petrol in my diesel and drove the vehicle. Now what?
Stop sensibly. Off. Nothing after that. It is salvageable a lot more often than people fear, even though driving is what shifts the trouble from that tank into your pump and injectors — and the single most helpful thing you can do now isn't restart it.
My warranty — does a fuel drain void it?
A manufacturer's warranty withstands a drain and flush done to a proper standard, which is no change at all. An argument over a warranty is likelier to come from running a diesel on petrol — so leave it switched off.
Can I just add two-stroke oil and drive home?
No. Two-stroke oil is an old workaround for a distinct issue and it doesn't replace what petrol has diluted. Petrol stays in that tank later on, whatever else goes in, and the pump gets no reprieve from it.
A main dealer for petrol in a diesel — necessary?
Wherever the vehicle is, we drain and flush it there, so a trip to the main dealer does not come into it.
Is your car still with you?
Never switch the engine on again.
Turn it off somewhere sensible and leave it off, if you have already driven it. This is recoverable from much more often than motorists fear, and a stationary, cold motor is the best place to be in.
Emptying wrongly fuelled motors, Fleetend and the rest of Hampshire, wherever they are. Roadside. Forecourt. Home.