How Worried Should You Be? Petrol in a Diesel Car in Pike Hill
Less than you probably are, if it has not been started. Till your ignition primes your pump, your starter cranks, or the car is driven, petrol in a diesel tank just rests there and does nothing. Which means the honest reply to the first Pike Hill query — "have I ruined it?" — normally no. Leave the motor off and phone Petrol in Diesel — that keeps it like that. What petrol really does to a diesel, how to judge how far it has travelled, and how to keep it from happening again: that is the rest of this page.
What petrol in a diesel does to the motor
Two tasks fall to diesel on its journey through a motor. Lubricating comes before burning; it does both. What stops the surfaces inside the high-pressure pump and your injectors from grinding against each other is your diesel flowing through them — they are built to very fine tolerances.
Of those two tasks, petrol handles the first badly and the second not at all. Being less viscous than diesel, petrol strips out the lubrication a fuel system needs, leaving a pump running on the mixture to wear itself. It's equally made to resist igniting under compression — the opposite of what a diesel needs — which is why you hear the clattering.
Put those together and the shape of the issue is clear. It is movement that causes the damage, not contact. Petrol in a tank is a fuel fault. The start of a mechanical one is a pump that has been labouring on that petrol — and whatever a worn pump sheds moves on with your fuel to the injectors downstream.
Petrol in a diesel around Pike Hill: how bad is it? Four cases
Fuelled but not once started — as good as it gets. At a forecourt, and truly only there, the petrol is still confined to your tank — since anywhere else your car was driven to reach it. The task is emptying and rinsing on the spot.
The ignition switched on, or a short start. Once primed, the fuel system has pulled petrol from that tank as far as your filter and the fuel lines. Usually little more than emptying, cleaning and seeing to the filter, and so still simple.
A couple of miles driven, and the pump has spent each of them working on diluted fuel. The work is your tank, the fuel lines, the filter and clean fuel through the whole circuit, and how hard the vehicle was driven matters as much as how far. A school run to Burnley Brunshaw Primary School is one matter. A run as far as Bradford, under 25 miles away, is a very different task. So is any distance on the M65, under 3 miles from Pike Hill, where your engine has been labouring hard throughout.
Clattering, a ragged idle, smoke, a throttle gone soft: driven till it complained. The fuel is not acting like diesel any more, and the engine is telling you. Stop on the spot — on the verge on Langwyth Road, at the kerb, down a side road — and don't move it again. The fuel drain and flush-through still come first, and they take care of it: when a car is pulled over soon, permanent damage is very rare.
Petrol in a diesel stories Pike Hill drivers hear
"Top it up the rest of the way with diesel and it'll be fine" — a myth. It will not. Nothing comes out when you top up — that tank simply holds more of the same mixture. A diesel fuel system doesn't tolerate petrol by percentage in the way that advice supposes.
"Modern diesels can handle a little petrol" — a myth, and closer to the reverse. More precise components and higher pressure are how a newer diesel runs its fuel, and that makes the lubrication count more, not less.
"It starts, it drives, and so no harm done" — the myth that catches most drivers than any other. The motorist of a petrol engine fed diesel normally has no choice but to stop, since it will not run, and the damage stops with them. Nothing seems to have happened when a diesel fed petrol fires up, ticks over and drives away, which it usually will; meanwhile your pump wears. Running isn't the same as fine.
"A drop of two-stroke oil and drive it home" — a myth, taken from a fix from years ago, for a separate problem. What petrol has thinned remains thinned, and the petrol stays inside your tank anyway.
The next start sends petrol back round the pump from your lines and your filter, where some of it sits once your engine has run. That's why a DIY tank drain doesn't leave you sorted — a myth. Draining petrol into a can by the roadside is also genuinely hazardous.
How does petrol in a diesel occur?
Nobody does it on purpose, and it is rarely carelessness. A diesel nozzle generally will not fit a petrol car, but the narrower petrol nozzle goes into the filler of a diesel almost without resistance — so forecourts make this one error straightforward, and only in one direction.
The moment habit stops matching your car is the moment it occurs. Hire cars, courtesy cars, and cars that are new to you. Two vehicles on one drive, one petrol, one diesel. A familiar forecourt with the pumps in a different order. A hurried fill on the way to Burnley Central with a train to catch. The first fill-up in a diesel Renault Megane after years of driving petrol is precisely the moment it happens. Throw in rain, a phone call or a back seat full of children, and the hand repeats what it has always done.
Next time you fill up in Pike Hill: preventing petrol in a diesel
- The label is what matters, and so read the pump rather than the colour: in the UK unleaded handles are usually green and diesel black, yet not on each forecourt.
- Plenty of vehicles state the fuel inside your filler flap or on the cap, and so check it on the first fill in a motor you do not know.
- Good intentions do less than a sticker or a fob in a vivid colour on your diesel's key if a home has one of each. So label it.
- Say it before you lift it. On your first fill in a new or hired car, say "diesel" out loud before you take the nozzle off the pump. It seems daft and it does the trick.
- Mistakes like this are simple to make while your mind is on something else, and so the phone goes away.
- Add-on devices are available for motors without one, and some diesels are built with a filler that will not take a petrol nozzle. Useful — but a safety net only, never a reason to stop checking the label.
- Less petrol makes a thinner mixture, so stop the moment you realise — while remembering that your next stage is unchanged. It's still not to fire it up.
Already put petrol in a diesel around Pike Hill?
Short and simple, then, is the order of things. Don't switch your ignition on, and do not crank it. Yet at the forecourt, at Shell or anywhere else? Ask the attendants to help you push the vehicle away from the petrol pump. What went in, about how much, and if it's run: tell us those when you ring 0333 366 0103.
AdBlue, not petrol? Then say so. Corrosion and deposits, not lost lubrication, make it a different fault — Pike Hill has a page all for it.
Why one petrol in a diesel task in Pike Hill costs more than another
There's no fair single quote for this, because the four scenarios above are four different tasks. Which of them you are in is mostly what shifts your cost. Two things come after that: the petrol that was put in as a proportion of what your tank holds, then the spot your car is in and whether a van can reach it safely.
Ahead of any quote, not after, we ask three queries: your fuel that got in, its amount, and if it has run. That is why. With the replies, you get a straight figure rather than a range.
About Pike Hill
Pike Hill is a suburban area situated on the edge of a lake in Lancashire, with a mix of semi-detached housing and a population of around 4147 residents. Pike Hill sits at an elevation of 178 metres, overlooking the surrounding countryside and nearby communities such as Brunshaw and Brownside. Pike Hill is located near the larger town of Fulledge and is approximately 18.6 miles from Bradford, making it a commuter base for the city. Pike Hill is also relatively distant from London, at around 180.1 miles away.
Fuel drain cover across Lancashire, Pike Hill included
Petrol in diesel jobs around Pike Hill — part of the BB postcode area — go to teams that also cover the spots about it, Brunshaw, Brownside and Fulledge included. Our technicians drain where the vehicle is — your own drive, a lay-by, a supermarket car park, a forecourt — so it does not have to come to us.
At the petrol pump around Pike Hill, right now?
Then you are in the best spot there is. Keep it off. Call.