Should You Worry? Petrol in a Diesel Car in Bognor Regis
Provided it hasn't been started, you can worry far less than you probably are. Until your ignition primes the pump, your starter turns, or your vehicle is driven, petrol in a diesel tank just waits there and does nothing. Which means the honest reply to that first Bognor Regis question — "have I ruined it?" — usually no. Petrol in Diesel is who to phone, with your engine left off, and so it remains that way. What petrol really does to a diesel, how to gauge how far it's gone, and how to stop it from happening again: that's the remainder of this page.
The motor and petrol in a diesel: what happens
On its way through a motor, diesel does two tasks. Before it burns, it lubricates — then it ignites. What keeps the surfaces inside the high-pressure pump and the injectors from grinding against each other is the diesel passing through them — they're designed to very fine tolerances.
Of those two tasks, petrol manages the first badly and the second not at all. A pump working on a petrol mixture is wearing itself out, because petrol is thinner than diesel and strips out the lubrication the fuel system depends on. Petrol is also made to resist igniting under compression — the opposite of what a diesel needs from its fuel — and that is where any clattering comes.
Put these together and the shape of the problem is clear. Not contact but movement is what does the damage. All a tank with petrol in it amounts to is a fuel fault. The beginning of a mechanical problem is a pump that has been labouring on that petrol — and whatever a worn pump sheds moves on with your fuel to the injectors beyond it.
How serious is petrol in a diesel? Four situations our engineers see in Bognor Regis
The best case there is: filled up, never started. Being on a forecourt is what makes this possible: elsewhere, the car has been driven there to begin with. With that petrol kept in that tank alone, it is emptied and flushed on the spot, and nothing more is needed.
Started for a second, or just the ignition on. Petrol has come out of that tank and reached the filter and the fuel lines, because the fuel system has been primed. Still normally easy: drain, flush, and the filter sorted.
Those few miles on the road meant your pump labouring on fuel weakened by petrol throughout. Tank, lines, filter, then clean fuel put through the entire system: that is this work, and the way the car was driven matters as much as the distance. A school run to St Mary's Catholic Primary School is one thing. Very different once more: a trip to Chichester, under 10 miles away, or some distance on the Waterlooville Bypass, under 25 miles from Bognor Regis, where your engine kept labouring hard.
It protested, and only then stopped: smoke, rattling, a throttle gone soft, an idle gone ragged. The motor is telling you your fuel is no longer behaving like diesel. Whether it is the verge on Clarence Road, a lay-by or a side street, stop there then leave it. Permanent damage is very rare if a car is stopped soon, and the fuel drain and flush that still go first sort it out.
What Bognor Regis drivers get told about petrol in a diesel — and the stories in it
"Top it up the rest of the way with diesel and it'll be fine" — a myth. It won't. Topping up takes out nothing; it gives you a fuller tank of the same mix. That advice assumes a diesel fuel system tolerates petrol by percentage. It does not.
Not so: a newer diesel copes with a bit of petrol. If anything, the opposite. A newer diesel runs its fuel through smaller parts at higher pressure, which makes the protection count more, not less.
"It starts, it drives, so no harm done" — the myth that trips up more motorists than any other. Feed diesel to a petrol motor and it generally will not run, and so the motorist stops — and the harm stops with them. A diesel fed petrol usually starts, ticks over and drives away as though nothing has happened, whilst the pump wears. Running isn't the same as fine.
An outdated workaround for a separate issue is behind this one. Myth: "Add some two-stroke oil and drive the vehicle home." What petrol has weakened remains thinned, and that petrol remains in the tank anyway.
Myth: "Drain that tank yourself and you're sorted." Once the motor has run, some of the petrol is no longer inside the tank: it is in your filter and your lines, and it goes right back through the pump at your next start. Besides, petrol cleared into a can by the road is truly dangerous.
How petrol ends up: petrol in a diesel
Carelessness is rarely the cause, and no one means to do it. A diesel nozzle generally will not fit a petrol vehicle, but the slimmer petrol nozzle goes into the filler of a diesel almost without resistance — so forecourts make this one mistake simple, and just in that direction.
It happens when routine and your car stop matching. A car that's new to you — a hire car, on loan as a courtesy car, or brand new. Two cars on one drive, one petrol, one diesel. Your ordinary forecourt, its pumps suddenly in a different order. Fuelling up in a hurry on the way to the nearest station, with a train to catch. Years of petrol vehicles behind you, a diesel Volkswagen Golf in front of you on the forecourt for its first tank — that's when. Your hand repeats what it has always done when you add rain, a phone call or a back seat full of kids.
Bognor Regis drivers: how to prevent petrol in a diesel next time
- A green handle for unleaded and black for diesel is usual in the UK — yet not on every forecourt. Go by the label on the pump, not the colour.
- Plenty of vehicles state the fuel type inside your filler flap or on the cap, so check there on your first fill in any car you don't know.
- One of each in the home? Label the key to the diesel — a coloured fob, a sticker — because meaning to remember is not enough.
- It sounds silly and it works: on your first fill in a new or hired car, say "diesel" aloud before you take the nozzle off the pump.
- Mistakes like this are easy to make while your mind is on something else, and so your phone goes away.
- Add-on devices exist for cars without one, and some diesels come with a filler that won't take a petrol nozzle. Useful — but a safety net only, never a reason to stop checking the label.
- Less petrol makes a thinner blend, so stop the moment you notice — while remembering that the next stage is unchanged. It is still not to fire it up.
Already put petrol in a diesel in Bognor Regis?
Short and simple, then, is the order of things. Do not turn your ignition on, and don't fire it up. Ask the attendants to help you push it away from the pump if you are still on the forecourt, whether that is Tesco or anywhere else. Call 0333 366 0103 next, with three facts — the fuel, the approximate amount, and whether it's run.
If it was AdBlue and not petrol, say so. That is a separate problem — corrosion and deposits and not lost lubrication — and it has its own page for Bognor Regis.
One petrol in a diesel job in Bognor Regis costs more than another. Why?
An honest single quote doesn't exist here: four situations, four separate jobs. What shifts your cost is chiefly which of them you're in. Two things follow that: the petrol that went in as a share of what that tank takes, then the place your car is in and whether a van can get to it safely.
That's why our technicians ask three queries before pricing instead of after: what got in, how much, and whether it has run. Those replies change a range into a straight figure.
About Bognor Regis and where it is
Bognor Regis is a seaside town in West Sussex, situated on the coast of the English Channel at a low elevation of around 6 metres. Bognor Regis lies near the cities of Chichester and Portsmouth, and is surrounded by smaller communities such as South Bersted and Felpham. Bognor Regis has a population of approximately 22,106 people, with a high proportion of flat dwellings. Bognor Regis is located about 55 miles from London, making it a popular destination for those seeking a coastal retreat.
Fuel drain cover in Bognor Regis and across West Sussex
Petrol in diesel jobs in Bognor Regis — part of the PO postcode area — go to teams that likewise cover the locations about it, South Bersted, Felpham and North Bersted among them. A forecourt, a supermarket car park, a lay-by or your own drive are all locations our technicians work, and your car does not need to come to us.
At the petrol pump around Bognor Regis, still?
Then you're in the best place there is. Keep the vehicle turned off, and ring.