Should You Worry? Petrol in a Diesel Car in Ifield
Less than you probably are, provided it has not been started. Everyone in Ifield starts with "have I ruined it?", and the honest answer is normally no: petrol left inside your tank of a diesel stays harmless till priming, cranking or driving draws it into the system. Leave your motor off and call Petrol in Diesel — that keeps it that way. What petrol actually does to a diesel, how to judge how far it's gone, and how to stop it from happening a second time: that's the rest of this page.
What petrol in a diesel does to the engine
Two jobs fall to diesel on its journey through a motor. Before it ignites, it protects — then it burns. Your high-pressure pump and your injectors are made to extremely fine clearances, and the diesel passing through them is what stops those surfaces from wearing down against one another.
Badly at the first, not at all at the second: that's petrol. The rattling comes from petrol being made not to ignite when compressed, which is precisely the reverse of what a diesel needs. On top of that it is runnier than diesel, it strips away the protection the fuel system rests on, and any pump running on such a blend is wearing itself.
The shape of the trouble is clear once you put those together. It's circulation that causes the damage, not contact. All a tank with petrol in it amounts to is a fuel fault. The start 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 your injectors beyond it.
Ifield, petrol in a diesel: four cases, from mild to major
Filled but not once started — the best it gets. The petrol is in the tank and only the tank, and the task is a drain and a flush where your car stands. This is the one scenario that can only really take place on a forecourt, because anywhere else the car has been driven to get there.
Your ignition switched on, or a short start. The system has been primed, so petrol has left the tank and reached your filter and your lines. That is generally still a straightforward task — a drain, a flush, and your filter dealt with.
Those few miles on the road were your pump labouring on fuel weakened by petrol the whole way. Tank, lines, filter, then fresh fuel run through the entire system: that is this work, and the way the car was driven counts as much as the miles. Driving the children to The Mill Primary Academy is one kind of trip. Driving as far as Brighton and Hove, under 25 miles away, makes a very different task — as does any distance on the M23, under 3 miles from Ifield, with your engine running hard all the way.
It complained, and only then stopped: smoke, knocking, a throttle gone soft, an idle gone uneven. The fuel isn't acting like diesel any more, and your motor is telling you. Stop wherever you are — the verge on Rudgwick Road, a lay-by, a side street — then leave the vehicle where it is. A vehicle pulled over early very rarely has long-term damage, since the fuel drain and the flush, which still come first, take care of it.
What Ifield drivers get told about petrol in a diesel — and the myths in it
It will not be fine. The myth: "Fill it the rest of the way with diesel and it will be." Nothing is removed by topping up — you are left with a fuller tank, still the same mix. Percentage is not how a diesel fuel system copes with petrol, whatever that advice presumes.
Not so: a newer diesel copes with a bit of petrol. Rather, the reverse. A newer diesel runs its fuel through more precise parts at higher pressure, which makes the lubrication matter more, not less.
"It starts, it drives, and so no harm done" — the myth that trips up more people than any other. Feed diesel to a petrol engine and it normally will not run, and so the driver stops — and the harm stops with them. A diesel fed petrol normally starts, idles and drives away as though nothing has happened, while the pump grinds. Being able to run is not the same as being fine.
Myth: a two-stroke additive lets you to drive home. It is an old workaround, meant for another problem. It doesn't put back what petrol has thinned, and the petrol is still in the tank later on.
Once the motor has been run, part of that petrol sits in your filter and your lines, not your tank — and the next start sends it straight back through your pump. So the myth "drain your tank yourself and you are sorted" doesn't stand up. It is also genuinely risky to drain petrol into a can at the roadside.
How does petrol in a diesel happen?
On purpose? Never. Through carelessness? Seldom, if ever. A diesel nozzle generally will not fit a petrol motor, but the slimmer petrol nozzle goes into the filler of a diesel nearly without resistance — so forecourts make this one error simple, and only in that direction.
The moment habit stops matching your car is the moment it occurs. Courtesy car, hire car, or a vehicle that is new. Two motors on one drive, one petrol, one diesel. A familiar forecourt with the pumps in a different order. Racing for a train at the nearest station and fuelling up en route. Precisely the moment it occurs: after years of driving petrol, someone fills a diesel Volkswagen Golf for the first time. Throw in a back seat full of children, a phone call or rain, and habit wins.
Next time you fill up in Ifield: preventing petrol in a diesel
- Read the pump, not the colour. In the UK unleaded handles are normally green and diesel black, but not on every forecourt. The label is what matters.
- The first fill in an unfamiliar vehicle is the time to check the filler flap — inside it, or on the cap, plenty of vehicles state the fuel they take.
- One of each in the house? Label the key to the diesel — a bright fob, a sticker — since intending to remember isn't enough.
- Say it before you lift it. On the first fill in a new or hired car, say "diesel" aloud before you lift the nozzle off the petrol pump. It seems daft and it works.
- Mistakes like this are easy to make whilst your mind is on something else, and so your phone goes away.
- A misfuel inhibitor helps, up to a point. Some diesels have a filler designed to reject a petrol nozzle, and add-on devices exist for motors without one. They are a backstop, not a reason to stop checking the pump.
- Less petrol makes a thinner mix, and so stop as soon as you realise — while remembering that the next step is unchanged. It's still not to start it.
Petrol already in a diesel in Ifield? Start here
The order of things is short, then. Do not turn your ignition on, and don't start it. The attendants at the forecourt — whether at Esso itself or wherever you filled up — will usually help push it away from the petrol pump if you ask. What got in, about how much, and if it's run: tell us that when you call 0333 366 0103.
If it was AdBlue rather than petrol, say so. That's a separate fault — corrosion and deposits and not lost protection — and it has its own page for Ifield.
One petrol in a diesel job around Ifield costs more than another. Why?
Four separate tasks sit behind the four scenarios above — which is why there is no honest single quote. Which of them you're in is chiefly what shifts the cost. The ratio matters next, meaning how much of the tank is petrol, and then the position of your car and whether reaching it is safe for our van.
Three questions come first, before any quote, rather than after — what went in, how much, has it run — and this is the reason. The replies turn a range into a straight figure.
About Ifield, for a moment
Ifield is a suburban area in West Sussex, situated near the River Mole and characterised by its terraced housing. Ifield sits at an elevation of 69 metres, with nearby neighbourhoods including Gossops Green, West Green, and Ifield Green. Ifield is located approximately 27 miles from London and 21 miles from the coast, near the city of Brighton and Hove. Ifield has a population of around 5500 residents.
Across West Sussex and in Ifield: fuel drain cover
Petrol in diesel calls in Ifield — part of the RH postcode area — go to vans that also cover the spots about it, Gossops Green, West Green and Ifield Green included. You need not move the vehicle to us. Forecourts, supermarket car parks, lay-bys and your own drive are all places where we work.
At the pump in Ifield, still?
The best spot there is, then — that is where you are. Call, and keep it turned off.