Put Petrol in a Diesel Car in Hartland? Don't Start It
Never start the engine. While the fuel is still sitting in the tank and your engine has not yet been started, a fuel drain is almost always all it requires — and that gets settled in the following few minutes, not by how much got in. Petrol in Diesel drains and flushes wrongly fuelled cars where they stand, across Hartland and the remainder of Devon, on the forecourt, by the roadside or on a driveway. Contact us so we can tell you what happens next before you try anything else.
Your next five steps: petrol in a diesel
- Give a petrol motor diesel and it will normally fail to run at all, so the motorist stops there and so does the wear. Feed a diesel petrol and the engine starts, it ticks over, it pulls away — all right for several miles. People have that reversed, which is the bit they get wrong about petrol in a diesel specifically. So do not crank it. And if started, don't depend on it: that fuel system is grinding as you drive.
- Two tasks, diesel: it combusts, and on the way through it keeps the high-pressure pump and injectors greased. Petrol only manages the one. That is why your ignition stays off as well — turn it on and you usually prime that system, and that's petrol leaving the tank for precisely those components.
- Do not tip diesel on top to weaken it. A diesel fuel system does not handle petrol by percentage the way that advice assumes, and topping up takes out nothing — it only gives you a bigger tank of the same blend. The grade makes no difference either: super unleaded is simply petrol.
- We would much rather come to an awkward place than have it started — so if you safely can, sit tight. Nothing is quicker to sort than a vehicle that has not moved. On the verge on Fore Street, that means hazards on and leave it.
- The van showing up instead of circling rests on two things: a postcode beginning EX39 6, and whatever is nearest to you with a sign on it. Keep both ready before you phone.
- What got in, about how much, plus if the engine has fired — the three facts shape your whole visit. Call 0333 366 0103 then tell us.
How far you drove is what our technicians ask about, not how long the car has been standing — and this is why. Diesel does two jobs on its way through the engine: it ignites, and before burning it protects that high-pressure pump and those injectors. Petrol manages the first only. So a hurried fill-up on the way in, the penny dropping close to eleven, and a diesel Renault Megane left at the nearest station since quarter past eight shows those couple of miles were travelled with your pump working on a fuel drained of most of its protection. Ring us and keep the vehicle just where it stands.
Diesel Ford Focus. A few litres of unleaded. Driven a couple of miles. Switched off now, outside The Clovelly Soap Company. That is the phone call our technicians like, since the point beneath it's about quantity through the pump rather than hours on the clock.
Do not chance it. The drive home from Anchor Inn is quite possible, which is exactly the problem — a diluted tank does not stop a diesel starting or pulling away, it just wears the components your fuel is meant to protect. Phone, and let the Vauxhall Astra stay where it is.
Off the forecourt, receipt read, a couple of hundred yards, parked by Hartland Methodist Chapel. For a diesel Citroen C3 whose motor has turned, that's about the best version there is. Call us, and let it stand with your ignition alone. Short assists, really — but a start is a start and a drive is a drive, and your filter has had thinned fuel through it, and so has the pump. Which is why your lines get rinsed and not just your tank cleared.
Strange locations are where this occurs most, and the reason is mechanical not careless: the slimmer petrol nozzle goes into a current diesel filler neck with practically no resistance at all. Topped up by Hartland Parish Hall without thinking, in a diesel Volkswagen Touran you have had for two days? Phone us where you are. Hire and courtesy cars tend to get driven further before anybody spots it, and mileage is what settles how much petrol reaches the fuel injectors.
Pump-side drains for petrol in a diesel
The job starts at the pump, generally. Frequently the job wraps up at one as well. We operate on station forecourts routinely, with the station's permission, and so if you're still at the nearest petrol station that is usually where this drain takes place.
Nowhere other than the forecourt can this be spotted with the engine still unrun. Anywhere else — a car park, a driveway, a lay-by — the car was fired up and driven to get there, which means fuel was sucked from your tank, through your filter then into the high-pressure pump. That is not a calamity, and our technicians can still deal with it where it sits. It does mean the lines and your filter need cleaning as well as the tank, and that's decided by the few seconds between seeing the till receipt and going for your key.
Wheel the car out of the way if the attendants suggest it, and they generally will. The next driver gets through the pump, and that is worth doing. Firing it for four vehicle lengths? No.
Hartland plus the areas beside it
As a coastal village, Hartland gets a regular call, whilst the places nearby come along on the same round: Pattard Water and Cheristow, Rosedown and Staddon, Natcott.
Not on the list? That tells you nothing. The places above are just the nearest few, and the majority of locations around Devon have a page of their own elsewhere on our site. Near the border, or somewhere your phone struggles with? Ring us and check instead of guessing.
The map marks the ground the page spans. The lot is territory our technicians serve: a roadside, a forecourt, a private drive, a car park. You do not bring your car anywhere.
Hartland: stuck where you parked
Not everybody has the chance to pull over somewhere suitable. Set off, then twigged? Ended up by the verge beside School Lane, or parked in some lay-by with the hazards flashing? That's a common call here. Not an odd one.
Wait by the vehicle while it's safe to sit in it, and out of the car when it is not. Every mile a diesel obliges you for on petrol draws that mix further into the system — and oblige it often will, which is why your motor does not get restarted to limp somewhere safer. A technician coming to an inconvenient place is no problem for us, and it is much better for the car than driving on.
So you've run it? Petrol in a diesel after a few miles
The local M5 is the one which matters now, and sits under 50 miles from Hartland. Some way along, and onto it in the first place: a misfilled diesel will often manage both before anything feels wrong. What you get then is seldom a tidy stop. Power falls away, your idle gets lumpy, and there may be some smoke.
Never start it to move it. Pull off at the first sensible junction and turn off. On a longer run — anything near the under 50 miles to the nearest city — take it the mixture has been through the filter, the pump and the fuel injectors, and tell us when you call. It affects what we bring.
Where's Hartland?
Hartland is a coastal village in Devon, situated on the north-west coast of the county, with Pattard Water and Cheristow nearby. Hartland sits at an elevation of around 110 metres, overlooking the sea and surrounded by rural landscapes. Hartland has a population of approximately 951 residents, living in predominantly detached housing, and is located near Rosedown. Hartland is about 45 miles from Exeter and 191 miles from London.
Once our engineers arrive with you around Hartland: what happens
- We ask first, price after. What was put in? How much? Has your engine run? Those replies alter what the work actually is.
- Your tank is cleared completely.
- What is remaining in the fuel system shouldn't be what caused the problem, and so the lines get flushed and the filter cleared.
- Your system gets bled, on clean diesel.
- It is run with new diesel in it, and our engineers confirm that it is running properly.
At that point it is ready to drive away. Our engineers do everything wherever the car has come to a stop, which means it never needs to be taken to a garage, and if it has been noticed soon, it is very uncommon for there to be long-term damage.
A separate matter: AdBlue in a diesel tank around Hartland
AdBlue instead of petrol? Then the opening step is unchanged — your engine remains off — whereas the fault underneath it's a separate one altogether. The lubrication a fuel system depends on is taken away by petrol, which weakens the diesel. AdBlue is urea in water, and in a diesel tank it brings rust and deposits instead.
Our engineers handle both, and AdBlue removal around Hartland has its own page with the full story — including why it is frequently the more significant of the two.
What a petrol-in-diesel fuel drain will cost around Hartland
One number wouldn't be fair here, since this isn't one job. These are the things that move it:
- Whether your motor has been started or driven. This is the key one.
- Wrong fuel in, against what that tank takes — that proportion.
- Which was put in: petrol or AdBlue.
- Whether a technician can sensibly reach your car and work on it, which rests on where the vehicle is.
The car, the amount, whether it has run — give us those and the answer comes back straight rather than as a range. If it isn't time-critical — the car is at home and going nowhere — works too.
Questions our technicians hear about petrol in diesel around Hartland
At a petrol station around Hartland, can you do a fuel drain there?
Yes — forecourts are where a large share of this happens. Tell us which one you are at when you phone and we will tell you whether our engineers can work there. With the station's consent we attend another forecourt nearby and the other forecourts locally all the time.
Is there a safe quantity of petrol in a diesel?
It hinges on the ratio instead of the litres, and far more on whether your motor has run. What decides how much work is needed is if that blend has been pulled through the system — because although five litres in a nearly empty tank is a different situation from five in a full one, either way that is the query.
I drove it after putting petrol in my diesel. What now?
Switch off somewhere sensible, then keep it that way after you stop. Not restarting it is the single most valuable thing available to you now. Driving does move the problem out of the tank and into your pump and injectors, yes, and it stays fixable much more commonly than people expect.
My warranty — does a fuel drain void it?
No. Carried out correctly, clearing and cleaning is no alteration at all, and the warranty from your manufacturer is unaffected by it. Running a diesel on petrol is the thing more likely to cause an argument with one, which is another reason to leave the vehicle turned off.
Adding two-stroke oil, then driving home
No. It belongs to a different issue from a different era, and petrol has weakened something no oil of that kind puts back. Petrol remains in that tank later on, whatever else goes in, and your pump gets no reprieve from it.
Main dealers and petrol in a diesel
There's no need to take it to a franchised dealer, since we drain and clean the vehicle wherever it is.
You, and your car, still together?
Shut off is the way the car remains.
If you have already driven the vehicle, stop somewhere sensible, turn it off then keep it off. A still, cold vehicle is the best position to be in, and this is recoverable from far more frequently than motorists assume.
Mobile fuel draining around Hartland and across Devon — at the kerbside, on the forecourt or at home.