Up Hatherley: Put Petrol in a Diesel Car?
Never fire up the motor. If the petrol is still in the tank and the motor has not yet been started, a drain is almost always all it requires — and that's determined in the coming few minutes, not by how much went in. Petrol in Diesel drains and flushes wrongly fuelled vehicles where they are, all over Up Hatherley and the remainder of Gloucestershire, on the forecourt, by the roadside or on a drive. Call us before everything else begins, and you'll learn what happens next.
Your first five steps: petrol in a diesel
- Never crank it — and do not depend on it when it does start. This is the thing motorists get wrong about petrol in a diesel especially. A petrol motor fed diesel normally just won't run, so the driver stops and the damage halts with them. A diesel filled with petrol typically starts, ticks over and moves off perfectly well for a couple of miles. It is not all right. It is eating into that fuel system as you drive.
- Leave the car's ignition be too. Diesel does two jobs: it combusts, and before it burns it protects the high-pressure pump and its injectors. Petrol does the first but not the second. Flicking the ignition on is usually sufficient to prime your system, which draws the petrol out of your tank then into just those parts.
- Topping up removes nothing. It hands you a bigger tank of the same blend, because a diesel fuel system does not accept petrol by percentage in the way that guidance suggests — so do not tip diesel on top to thin it. Grade is beside the point too: super unleaded is petrol.
- A motor that has not moved is the quickest one to sort out, and so stay where you are if you sensibly can. Parked on the verge on Sunnyfield Lane? Hazards on, then keep the car there. An awkward spot suits us better than a started motor.
- Find out where you are before ringing. A postcode that starts GL51 6, and the name of whatever is nearest to you. Otherwise our van circles rather than arriving.
- Call 0333 366 0103. Let us know what went in, about how much, and if the motor has fired. These three facts determine your whole job.
How far you travelled is what we query, not how long the motor has been stood — and here's why. Diesel does two roles on its way through an engine: it ignites, and before burning it protects that high-pressure pump and those injectors. Petrol handles the first only. So a hurried fill-up on the way in, the realisation coming at about eleven, and a diesel BMW 3 Series standing outside Cheltenham Spa since quarter past eight tells us those couple of miles were done with the pump working on a fuel drained of a great deal of its protection. Ring us then keep it exactly where it is.
Each start primes that fuel system and pulls more of the mixture out of your tank and on to your pump — which is why a motor moved twice into a nicer bay has quietly grown into a harder job than one left exactly where it stopped. So when our technicians can't work beside your diesel Nissan Qashqai, we move it without starting it. None of that is fussiness about a handful of seconds of running. Car parks like the one at Asda we visit all the time, and your fuel is seldom the awkward part: that bay is. Motors either side, a trolley shelter behind, sometimes a height barrier at the way in determining if a technician can reach you at all. Tell us how boxed in you are, and which way the car points.
Out there fine, back flat. If that was the drive to FC Lakeside, look at your tank. Diesel gets thinned by petrol, and thin fuel slips past the tight gaps meant to build injection pressure — so every further mile the diesel Audi A3 covered, the less pressure it held onto. Somewhere safe, turn off, ring us.
Most of these happen somewhere unfamiliar, and the cause is mechanical instead of slapdash — almost no resistance meets a smaller petrol nozzle entering a newer diesel filler neck. Two days into a diesel Kia Sportage, a fill-up by St Philip & St James that you did not think about? Phone us from where you are. Courtesy and hire cars go further before anybody spots it, and the further they go, the more petrol arrives at the fuel injectors.
Someone certain will tell you to drain the car and put new diesel in. Half true, that. Try it on a diesel Volkswagen Touran near The Pavilion and the motor will start — which is exactly why it sounds like sense. Here is the problem: there's petrol left in your filter and the feed lines, and the first thing the engine does is draw it back through the pump once more. Draining a tank achieves nothing about fuel that already left your tank. Phone us. The circuit gets flushed, the fuel filter comes off where there's one worth removing, and that's what separates a repaired motor from one that merely starts.
At a forecourt: removing petrol from a diesel
Much of the job starts at a pump, meaning a large chunk of it gets done on site. Still at Asda? Then that is typically where it takes place. Station forecourts are everyday for us, with the permission of the owner.
Before the engine has fired — a forecourt is the one spot the mistake is stopped. Fuel pulled out of your tank and through your filter, all the way to the high-pressure fuel pump, is what occurs when the motor is fired up and your car is moved to where it is now: the car park, the private drive or the lay-by, anywhere other than the forecourt. So the flush takes in your filter and the fuel lines along with that tank. That is still not a catastrophe, and we put it right where the car is. What determines it is whether the key was turned in the seconds after the till receipt was checked.
Away from the pump, the next motorist can get by — so yes, let the attendants help you push it. Very much worth it. Starting it just to shift four car lengths is not.
Up Hatherley plus the towns next to it
The same rounds bring us to Hatherley, The Reddings, Badgeworth, The Tynings and Chargrove as well as Up Hatherley, which is a residential suburb.
We still come. The places above are merely the nearest neighbours, and a page exists for most places around Gloucestershire, so an absence from the list is not an absence from the coverage. Phone to enquire rather than guessing — county lines especially, and anywhere the satnav tends to misread.
This map is the patch the page spans. All of it is territory our engineers cover: a roadside, a forecourt, a drive, a car park. You don't move your car anywhere.
Up Hatherley: broken down wherever you stopped
Not everybody has a safe spot to stop. If you worked it out after setting off and finished up by the verge on Up Hatherley Way, or at a lay-by somewhere with the hazard lights on, that's a routine call for us instead of an unusual one.
Out of the car while it isn't sensible to be there, beside it when it is. Every mile a diesel obliges you for on petrol pulls the blend further into the fuel system — and oblige it usually will, which is why your engine does not get restarted to limp somewhere safer. We will bring our van to an inconvenient location without any fuss, and for your car that is far better than carrying on.
Already driven it? Petrol in a diesel after a couple of miles
The local M5 is the one that matters now, and it sits under 3 miles from Up Hatherley. A misfuelled diesel will often get you onto it and some distance along before anything feels wrong, while the symptoms when they appear are normally lost power, a lumpy idle and some smoke instead of a clean stop.
Take the first junction that's safe, pull up there, and never start it to reposition. Presume the worst of that on a long run. Anything close to the under 10 miles to the nearest city, and the petrol has been through your filter, through the pump, through the injectors. Tell us when you call. What our engineers bring alters.
Where is Up Hatherley?
Up Hatherley is a suburban area located near Gloucester in Gloucestershire, situated inland at an elevation of 53 metres. Up Hatherley is characterised by its predominantly detached housing stock and is close to nearby places such as Hatherley and The Reddings. Up Hatherley has a population of approximately 1933 residents and is within commuting distance of Gloucester, being around 5.3 miles from the city centre.
What happens when our engineers arrive with you in Up Hatherley
- Three things get established before any quote — the fuel that was put in, the quantity, and if anything has been run since. Each answer shapes the work.
- Our technicians empty your tank of the tainted mixture.
- Fuel lines are rinsed through and the filter cleaned, leaving nothing in the fuel system that created any of this.
- Fresh diesel goes in, and then the fuel system gets bled.
- The motor is started and tested to make sure it runs correctly on fresh diesel.
At that point it is ready to set off. Everything is done where your car is, so it never has to be taken to a workshop, and when it has been caught soon, lasting damage is very uncommon.
AdBlue in a diesel tank in Up Hatherley is a different problem
The issue is not the same, though the first rule is — never fire it up — if what went in was AdBlue rather than petrol. Petrol does two things to diesel: weakens it, and removes the lubrication the fuel system relies on. Corrosion and deposits are what a diesel tank gets instead, because AdBlue is urea dissolved in water.
Our technicians deal with both, and AdBlue removal around Up Hatherley has its own page with the details — including why it's often the more significant of the two.
What a petrol-in-diesel fuel drain will cost around Up Hatherley
What moves the figure is laid out below, as the job is not one job and our engineers cannot honestly put a single price on this page.
- Whether your engine has been run or driven. This is the big one.
- Wrong fuel in, against what your tank holds — that ratio.
- Which went in: unleaded or AdBlue.
- Where is it? And can our van reach it and work there sensibly?
The car, the quantity, whether it has run — give us those and the answer comes back straight rather than as a range. Not pressing, with your car at home and going nowhere? Then is fine.
Up Hatherley motorists ask us these about petrol in diesel
I am on a forecourt around Up Hatherley. Can you drain it here?
Plenty of what our technicians do gets done nowhere else. So yes. We work at Morrisons and the other forecourts nearby all the time, with the station's consent — tell us which one you're at when you call and we'll tell you whether our technicians can work there.
A few litres of petrol in a diesel — too much?
Litres are not the measure. Ratio is, and much more than either, it matters whether anything has been run. A nearly empty tank with five litres in it, against a full one with the same five: distinct scenarios, definitely. Either way, the work required comes down to one thing, which is whether your fuel system has had that blend drawn through it.
I drove the vehicle after putting petrol in my diesel. What now?
Switch off somewhere safe, then keep it that way after you stop. It's fixable far more commonly than people expect, even though driving is what moves the issue from your tank into your pump and injectors — and the single most valuable thing you can do now is not restart it.
My warranty — does a fuel drain void it?
No. Carried out correctly, emptying and purging is no change at all, and the warranty from your manufacturer is unaffected by it. Another reason to leave it switched off: running a diesel on petrol is the thing more likely to cause an argument with one.
Adding two-stroke oil, then driving home
What petrol has diluted is not restored by two-stroke oil, which is an old remedy for a distinct fault. So no. Petrol stays in that tank after that, whatever else goes in, and your pump gets no break from it.
Does petrol in a diesel have to go to a main dealer?
Wherever your car is, our engineers drain and flush it there, so a trip to the main dealer does not come into it.
You, and your vehicle, still together?
Never turn it on again.
Driven it already? Then somewhere safe, stop, turn off, and no restarting it after that. This is recoverable from much more frequently than drivers expect, and a parked, cold motor is the best place to be in.
Draining wrongly fuelled cars, Up Hatherley and the rest of Gloucestershire, wherever they are. Kerbside. Forecourt. Home.