Put Petrol in a Diesel Car in Bracklesham? Don't Start It
With your tank still holding the fuel and your engine not yet run, almost every job requires only a drain, so leave the engine off. That outcome is decided in the minutes straight after the fill-up, and not by the amount that was put in. Throughout Bracklesham and the remainder of West Sussex, Petrol in Diesel drains the car and cleans it where it sits, whether by a roadside, on a driveway or at a forecourt. Our technicians can show you what the following part will be. Phone — this happens before everything else.
Petrol in a diesel: what to do now
- Don't fire it up — and don't believe it if it fires up. That is the part most people get wrong about petrol in a diesel specifically. A petrol motor given diesel usually just can't run, so the motorist stops and the harm stops with them. A diesel fed petrol normally starts, idles and drives away perfectly well for a couple of miles. It is not okay. It is grinding that fuel system as you drive.
- Two things, diesel: it ignites, and on the way through it keeps the injection pump and injectors lubricated. Petrol only handles the one. That is why the ignition stays off as well — flick it on and you usually prime that system, and that's petrol exiting the tank for just those parts.
- That guidance assumes a diesel fuel system handles petrol by percentage. It won't. Tip diesel on top and nothing at all is taken out; what you end with is a bigger tank of the same mixture. And no, the octane makes no difference — super unleaded is simply petrol.
- Wait where you are if you reasonably can. A vehicle that has not shifted is the quickest one to handle, and we'd rather drive to an odd location than have it started. If you are parked on the verge on Lacock Close, put your hazards on then keep it there.
- Before you dial, gather your location. Anything nearest to you with a label on it, plus a postcode starting PO20 8 — that is what determines whether the technician turns up or circles.
- Call 0333 366 0103. Prepare for three things — what went in, about how many litres, and if the car has been run. Those responses shape everything that follows.
Pump-side draining for petrol in a diesel
The work kicks off at a pump, mostly. Often enough it ends at one as well. Still at Shell? Then that's normally where it takes place. Petrol station forecourts are routine for us, with the agreement of the station.
No place but the forecourt can it be stopped with your motor still unstarted. The few seconds between seeing your receipt and going for the keys settle how much requires cleaning. Everywhere other than a forecourt — a car park, a private drive, a lay-by — your car was switched on and driven to get there, so fuel was sucked from the tank, through your filter then into the high-pressure fuel pump. That means the fuel lines and the fuel filter require rinsing as well as the tank. It is not a disaster, and our engineers can still sort it out where the vehicle is.
Away from the pump, the next motorist can get by — so yes, let the attendants help you push the vehicle. Worth doing. Firing the car for four vehicle lengths? Never.
Places we cover in Bracklesham
Earnley, East Wittering, Almodington, Somerley, Shipton Green — every one of these on the runs that bring us out to Bracklesham too, a residential suburb.
Our engineers do come. Those places above are only the nearest neighbours, and a page is there for the majority of towns around West Sussex, and so an absence from the list is not an absence from the coverage. Phone to enquire rather than presuming, above all if you are on the border or somewhere your satnav can't find.
The area this page includes is on the map. Your car does not need to move to us. We operate across all of that — kerbside, forecourts, driveways, car parks.
Twenty to nine. At the gates of East Wittering Community Primary School. Late already, and the receipt in your hand shows unleaded. Put your hazards on, leave the ignition alone, then call us. You might think three miles is nothing, in the Ford Focus or anything else — except that fuel is metered on demand, and a dash taken in a hurry needs a great deal of it.
Do not risk it. The trip home from the pub in the village is perfectly possible, which is precisely the trouble — a weakened tank doesn't stop a diesel starting or pulling away, it just wears the parts the fuel is supposed to protect. Phone us, and let the Mercedes E-Class stay where it sits.
Pull over somewhere sensible, turn off and ring us. Normal on the way out to RSPB Medmerry Nature Reserve, sluggish on the way back? Then look at that tank. Petrol thins diesel; weaker fuel seeps past the precision parts that build injection pressure; and the further the diesel BMW 5 Series travelled, the less of that pressure it held.
Calling from near Bracklesham Barn? Three things help us. The filler — which side of your car it's on. Room for a van alongside you, without the road being blocked. And if anything has run since the fill-up. The place itself hardly counts: on-street is where our technicians work most, and we'd far rather have a tight spot than a car someone has driven somewhere easier. Then it is a drain for the Citroen C3, a filter change where there is one worth changing, lines purged, fresh fuel put round the entire system. By now the worst of that is in the lines and not your tank.
Put right and starting aren't the same thing, and the difference is your system: our technicians flush it, and take the fuel filter off where there's a workable one. Compare that with the confident advice you'll get — drain it, refill with clean diesel. Only half right. Do precisely that to a diesel Renault Captur by Downview Hall and it will start, which is exactly why the suggestion sounds sensible. Then your engine sucks the petrol left behind in your filter, and in the feed lines, straight back through the pump, as emptying a tank does nothing whatever about fuel that has already left it. Call us instead.
Bracklesham: stuck wherever you stopped
Not everybody finds a decent place to pull in. A routine call for us rather than an unusual one: worked out after setting off, ended up along the verge on Manton Close or in a lay-by with your hazards on.
Sit by your car if it's safe to be there, but clear of the car if it isn't. It will usually oblige. A diesel running on petrol limps along perfectly willingly, and that is the catch: restart the car to reach somewhere better and the mixture goes further into the system with every mile driven. However awkward the location, it's no bother for us to come to it, and that's a lot better for the car than driving on.
Some miles on petrol in a diesel: now what?
This is where the Waterlooville Bypass counts, under 10 miles from Bracklesham. A loss of power, a lumpy idle, some smoke: those are the signs when they appear, instead of a tidy stop — and a misfilled diesel will frequently get you onto it and some way along before anything feels wrong at all.
Take the next exit that is safe, pull up there, and don't restart it to reposition. Assume the worst of it on a long run. Anything near the under 10 miles to the closest city, and the contamination has been through your filter, through your pump, through your injectors. Say so when you call. What our technicians bring alters.
About Bracklesham
Bracklesham is a coastal suburban area in West Sussex, situated near the cities of Chichester and Portsmouth. Bracklesham lies at a low elevation of around 3 metres, close to the shoreline of the English Channel. Bracklesham is characterised by its predominantly detached housing stock and is surrounded by nearby places such as Earnley and East Wittering.
Once our engineers arrive with you in Bracklesham: what happens
- The replies shape the work, which is why our technicians ask before pricing: what was put in, how much of it, and whether the engine has run.
- Your tank gets drained of everything.
- Lines rinsed, filter cleaned. Whatever is left after that isn't the thing that created the problem.
- Bleeding your system follows, once new diesel is in.
- It's run with clean diesel in it, and our technicians make sure that it's running correctly.
That leaves the car ready to drive away. All of it is done where the vehicle is, so it never needs to be taken to a workshop, and when it has been caught soon, permanent damage is very uncommon.
AdBlue in your diesel tank instead, around Bracklesham?
Don't crank it: that opening step applies whether what went in was AdBlue or petrol. What changes is the problem itself. The protection a fuel system depends on is stripped away by petrol, which thins the diesel. Urea in water, AdBlue, and in a diesel tank that brings rust and build-up.
Often the more significant of the two, AdBlue — and the full story sits on its own Bracklesham page. Both are ours to handle.
How much is a petrol-in-diesel fuel drain in Bracklesham?
Our engineers cannot put one figure on this page honestly, as the job isn't one job. What changes it:
- This is the main one: whether your engine has been run, or driven.
- How much of the wrong fuel got in, compared with how much the tank holds.
- The kind of liquid in the tank, petrol or AdBlue.
- Whether a van can safely reach the vehicle and work on it, which rests on where the vehicle is.
Tell us the car, the quantity and whether it has run, and you will get a clear answer instead of a range. Not pressing, with your car at home and going nowhere? Then is fine.
Petrol in diesel questions from Bracklesham motorists
I'm on a forecourt around Bracklesham. Can you drain it on the spot?
Yes, and it is where a large part of this work happens. Regularly, provided the site agrees: Esso, plus every other forecourt nearby. Say on the phone where exactly you have stopped. Whether we can work in that location is something our technicians answer there and then.
How much petrol in a diesel is too much?
Litres are not the yardstick. Ratio is, and a lot more than either, it matters whether anything has been run. A nearly empty tank with five litres in it, against a full one with the same five: distinct situations, of course. Either way, the work required comes down to one thing, which is if the fuel system has had that mix pulled through it.
Petrol in my diesel, and I have driven the vehicle
Switch off somewhere sensible, and keep it that way after you stop. Driving is what shifts the trouble from that tank into your pump and injectors — but it's salvageable a lot more frequently than people fear, and the single most useful thing you can do now isn't restart the vehicle.
Is a fuel drain going to void my warranty?
A drain then flush carried out correctly isn't an alteration and doesn't invalidate a manufacturer's warranty. A dispute over a warranty is likelier to come from running a diesel on petrol — so leave it switched off.
Could I put some two-stroke in and just drive?
No. It belongs to a separate fault from a separate era, and petrol has weakened something no oil of that kind restores. Afterwards? Still petrol in your tank, and a pump that has to cope with the stuff.
Main dealers and petrol in a diesel
You don't need one. The vehicle is drained and flushed wherever it is, with no need to take it to a dealership.
Still with your vehicle?
Do not turn your engine back on.
Driven it already? Then somewhere safe, stop, turn off, and no restarting it later on. A still, cold vehicle is the best place to be in, and this is recoverable from a lot more frequently than motorists fear.
Throughout West Sussex and in Bracklesham: call-out fuel draining, at home or on the forecourt or at the kerbside.