How Worried Should You Be? Petrol in a Diesel Car in Kingsgate
Less than you probably are, provided it has not been started. Petrol resting in a diesel tank does nothing to the motor until something draws it through the fuel system — the ignition priming your pump, your starter, or driving on its own. So the truthful answer to the first query anyone in Kingsgate asks, "have I wrecked it?", is usually no. Petrol in Diesel is who to call, with the motor left off, so it stays that way. The remainder of this page sets out what petrol actually does to a diesel, how to judge how far it has got, and how to make sure it does not happen to you again.
The motor and petrol in a diesel: what goes on
Diesel does two tasks on its way through an engine. It combusts, and before it burns it protects. What stops the surfaces inside the high-pressure fuel pump and the fuel injectors from wearing down against one another is the diesel flowing through them — they're built to extremely fine clearances.
The second task petrol does not do at all, and the first it does poorly. Being less viscous than diesel, petrol strips away the protection a fuel system needs, leaving a pump running on that mixture wearing itself. It is also made to resist igniting under compression — the reverse of what a diesel needs — which is why you hear the rattling.
Put these together and the shape of the issue is plain. It is movement that does the harm, not contact. A tank with petrol in it is a fuel issue. After the pump has been running on that petrol, a mechanical issue has begun: whatever is shed by a pump that is wearing down is carried downstream to the injectors with your fuel.
Petrol in a diesel around Kingsgate: how serious is it? Four situations
Filled up, and not started: no case is better. Being at a forecourt is what makes this the case: elsewhere, your car has been driven there to begin with. With the petrol held inside your tank alone, it is drained and cleaned right where it stands, and nothing more is needed.
Ignition on, or started for a second. With the fuel system primed, the fuel lines and filter already hold petrol that came from your tank. Usually little more than clearing, cleaning and seeing to the filter, and so still straightforward.
Those few miles driven were your pump labouring on fuel weakened by petrol throughout. Miles is only half of it; how hard it was driven matters just as much. Either way this work includes the tank, the lines, the fuel filter and clean fuel through the whole circuit. Driving the kids to Callis Grange Nursery and Infant School is one kind of trip. Getting as far as Canterbury, under 25 miles away, makes a very different task — as does any miles on the M2, under 25 miles from Kingsgate, with the motor running hard the whole time.
Driven on until it protested — clattering, smoke, an uneven idle, a soft throttle. The engine is telling you your fuel is no longer acting like diesel. Leave it where it stops: a lay-by, a side street, the verge on Whiteness Green. What goes first is still the fuel drain and flush, and that deals with it, with lasting damage very rare when a vehicle is pulled over early.
Petrol in a diesel stories Kingsgate people hear
Myth: "Fill it the rest of the way with diesel and it will be fine." It will not. A fuller tank of the same mixture is all it gives, because topping up removes nothing. A diesel fuel system doesn't tolerate petrol by percentage in the way that advice assumes.
Myth: a newer diesel copes with a bit of petrol. Rather, the reverse. At higher pressure, through finer components: that's how a modern diesel handles its fuel, so the protection matters for more, not less.
This is the one that catches motorists. Myth: "If it starts and drives, there is no damage done." Feed diesel to a petrol motor and it usually won't run, and so the driver stops — and the harm stops with them. Feed petrol to a diesel and it normally fires up, idles and drives away like nothing has happened — all while its pump is wearing. Running is not the same as fine.
Not so: a two-stroke additive makes it safe to drive home. It was an old fix, supposed for another problem. None of what petrol diluted gets put back by it — and later, your tank still holds that petrol.
Once the engine has run, part of that petrol sits in the filter and the lines, not your tank — and the next start pulls it straight back through the pump. So the myth "drain the tank yourself and you are sorted" does not stand up. It is also really risky to drain petrol into a can by the roadside.
Petrol in a diesel: how does it take place?
Nobody does it on purpose, and it is seldom carelessness. A diesel nozzle generally will not go into a petrol motor, yet the smaller petrol nozzle goes into the filler of a diesel nearly without resistance — so forecourts make this one error simple, and just in that direction.
Habit and your car getting out of step is when it occurs. Hire cars, courtesy cars, and cars that are new to you. One petrol and one diesel on the drive of the same household. A forecourt you know, but with its pumps laid out differently. Rushing for a train at Broadstairs and filling up en route. Years of petrol cars behind you, a diesel Volkswagen Golf in front of you on the forecourt for its first tank — that is when. Throw in a back seat full of kids, a phone call or rain, and the hand wins.
Kingsgate people: how to avoid petrol in a diesel next time
- The label is what counts, and so read the pump rather than the colour: in the UK unleaded handles are usually green and diesel black, but not on each forecourt.
- In a motor you don't know, look inside the flap over your filler or at the cap before your first fill: plenty of cars print the fuel type there.
- Good intentions count for less than a sticker or a fob in a bright colour on your diesel's key if a household has one of each. So label it.
- It seems silly and it does the trick: on your first fill in a new or hired car, say "diesel" aloud before you take the nozzle off the pump.
- Tuck the phone away. This is an easy mistake to make while you are thinking about something else.
- A misfuel inhibitor helps, up to a point. Some diesels have a filler built to refuse a petrol nozzle, and add-on devices are available for cars without one. They are a backstop, not a reason to stop checking the petrol pump.
- Less petrol makes a weaker mix, and so stop the moment you notice — though remembering that your next stage is unchanged. It's still not to start the vehicle.
Put petrol in a diesel in Kingsgate already?
Then the order of things is brief. Do not turn the ignition on, and don't crank it. If you're still at the forecourt — Gulf or anywhere else — ask the staff to help you roll the vehicle away from the petrol pump. Next, 0333 366 0103. We will ask what was put in, roughly how much, and if it's been run.
AdBlue, not petrol? Then say so. Corrosion and deposits, not lost lubrication, make it a separate fault — Kingsgate has a page just for it.
Why one petrol in a diesel job in Kingsgate costs more than another
The four scenarios above are four different tasks, so no single price for this would be honest. The scenario itself does most of the work of moving the cost. Where your car is counts too, and whether a van can safely reach it, after the proportion of petrol to what the tank takes.
Ahead of any quote, not after, we ask three questions: the fuel that got in, its volume, and whether it's run. That's why. Their replies are what turn a range into one firm number.
About Kingsgate itself
Kingsgate is a coastal suburban area in Kent, situated near the town of Broadstairs and close to the North Foreland headland. Kingsgate sits at an elevation of around 40 metres, overlooking the sea and forming part of the larger conurbation around Margate. Kingsgate is characterised by its predominantly detached housing stock and quiet residential atmosphere, with nearby villages like Reading Street and Northdown. Kingsgate is located approximately 16.9 miles from Canterbury and 67.8 miles from London.
Kingsgate and Kent: where our fuel drain cover reaches
The vans answering petrol in diesel call-outs in Kingsgate, in the CT postcode area, also work the locations near it, Reading Street, Northdown and North Foreland among them. The car does not need to come to us: we drain at a forecourt, in a supermarket car park, in a lay-by or on your own driveway.
Still at the pump in Kingsgate?
Nothing beats it: that is where you are. Keep it off. Call.