Put Petrol in a Diesel Car in Derrymore? Don't Start It
If you have not turned on the motor yet, do not. A drain and nothing else is almost always what a vehicle requires while the petrol is still inside that tank and your engine has not yet run, which is why it's the coming few minutes that matter, not how much went in. Petrol in Diesel goes to the car wherever it has stopped in Derrymore or the rest of County Antrim, on the forecourt, by the roadside or on a private drive, and drains and cleans it there. Our team can tell you what the following part is. Phone — it comes before everything else.
What to do now about petrol in a diesel
- Feed a petrol motor diesel and it will usually refuse to run at all, and so the person stops there and so does the wear. Give a diesel petrol and the thing starts, it ticks over, it moves off — fine for several miles. Most people have that backwards, which is the thing they get wrong about petrol in a diesel in particular. So never crank it. And once started, never rely on it: that fuel system is wearing down as you drive.
- Leave the ignition off as well. Diesel performs two roles: it combusts, and before it ignites it greases the high-pressure fuel pump and its injectors. Petrol manages the first but not the second. Turning the car's ignition on is usually sufficient to prime that system, which carries this petrol out of the tank then into just those parts.
- Never thin it. Diesel added on top gets rid of nothing, so all you have is more of what was already there, because percentage isn't how a diesel fuel system handles petrol. Super unleaded? Still petrol. The grade makes no difference.
- We would much rather drive to a tricky place than have it started — so if you safely can, stay still. Nothing is quicker to handle than a car that has never moved. On the verge on Heugh Road, that means hazards on then leave the car.
- Keep your position prepared before you ring. A postcode starting BT67 0 and whatever is next to you with a name on it is the difference between a van turning up and our van circling.
- Ring 0333 366 0103. Tell us what got in, roughly how many litres, and if the car has started. These three replies determine the full job.
Can petrol be drained from a diesel at a forecourt?
Pumps are where the work often kicks off, and where a good chunk of it finishes. Our technicians work on petrol station forecourts regularly, with the station's consent, so if you are still at the nearest petrol station that's generally where this drain takes place.
Nowhere else other than a forecourt can this be halted with the motor still untouched. Fuel sucked out of that tank and through your filter, right to the high-pressure fuel pump, is what happens when the engine is started and the car is driven to where it is now: the car park, the private drive or the lay-by, everywhere other than the forecourt. So the flush takes in the filter and the fuel lines along with the tank. That's still not a calamity, and our engineers deal with it where your car sits. What determines it is whether the ignition was reached for in the seconds after the till receipt was checked.
Away from the petrol pump, the next driver can get past — so yes, let the attendants help you move the vehicle. Very much worth it. Moving the car four lengths doesn't warrant starting the motor.
Diesel Renault Clio. A couple of litres of unleaded. Driven a couple of miles. Switched off now, at the local shops. That's the phone call we like, because the question under it is about amount through the pump not hours on the clock.
It will fire up. It will move off just fine. That is the trouble, as a diesel on a thinned tank behaves typically whilst wearing the parts its fuel should be protecting. So no, don't try the drive home from the pub in the village — leave the Peugeot 308 and ring us.
Standing still, it gets no worse. The pump isn't turning, so whatever occurred on the way to the green space at the edge of the village in that diesel Audi A4 is finished happening. Time is yours. Just don't take it home on your engine to find more of that.
Rarely the problem, the spot. On-street is the most common spot our engineers work, and a narrow parking spot is far preferable to a motor that has been driven somewhere more handy. What does help, when you phone from close to the centre, is three things: the side the filler is on, whether a van can park alongside without blocking the road, and if anything has run since you filled up. Then the Mercedes C-Class gets drained, the filter changed where a workable one exists, the lines flushed and fresh fuel put through the whole circuit — as by now the worst of it is in the lines, not the tank.
Drain it and put new diesel in — that's the suggestion you'll get, typically from a person confident, and it is only half right. Do exactly that to a diesel BMW 5 Series near the far end of the built-up part and it would start, which is what makes the suggestion sound plausible. What takes place next is the problem: the motor immediately draws the petrol left sitting in the filter and the feed lines straight back through the pump, as draining a tank does nothing about fuel that has already left it. Call us instead. We flush your system and take your filter off where your vehicle has a working one, which is the difference between your car being fixed and your car only starting.
Will we reach your side of Derrymore?
Those same journeys carry us to Gawleys Gate, Aghagallon, Aghalee, Lower Ballinderry and Upper Ballinderry along with Derrymore, which is a small village.
There are separate pages for most places across County Antrim, and the ones mentioned above are merely the immediate neighbours — so yours being missing from this list means nothing at all about if our technicians come. Presuming is the mistake to skip, above all on the border or anywhere your satnav fails. Call us and enquire.
Check this map for the area covered here. Every bit of that is ground our engineers work: a kerbside, a forecourt, a driveway, a car park. You never move the car anywhere.
Broken down at the roadside around Derrymore
Not everybody has a chance to stop anywhere safe. Set off, then noticed? Landed by the verge on South Crescent, or parked in some lay-by with the hazards going? That is a common call here. Not an unusual one.
Safe where you are? Sit with it. Not fine? Climb out and away from it. Every mile a diesel obliges you for on petrol drags that blend further into the system — and oblige it frequently will, which is why the engine doesn't get restarted to limp somewhere safer. However inconvenient the spot, it is no trouble for us to get to it, and that's a lot better for the vehicle than pressing on.
A few miles on petrol in a diesel: now what?
over 50 miles from Derrymore, your M77 is what matters here. Some way along, and onto it in the first place: a misfilled diesel will usually manage both before anything feels wrong. What you get then is rarely a clean stop. Power drains away, the idle turns rough, and there may be smoke.
Get off at the first safe exit, switch off, and do not start the vehicle to move it. It affects what our engineers bring, so tell us when you call: on a longer trip — anything close to the under 15 miles to the closest city — assume the mixture has been through the filter, your pump and the injectors.
A bit about Derrymore
Derrymore is a small locality in County Antrim, situated inland at a low elevation of around 12 metres. Derrymore lies near the communities of Gawleys Gate, Aghagallon, and Aghalee, and is approximately 11.6 miles from Lisburn. Derrymore is characterised by its predominantly detached housing stock, reflecting its rural setting. Derrymore has a population of around 566 people, according to estimates.
When our technicians get to you around Derrymore: what we do
- Our technicians establish what went in, how much, and whether the engine has run. The replies shape the work, which is why we ask before giving a price.
- Your tank gets drained of it.
- We rinse your fuel lines and clean your filter, so what's remaining in your system isn't what created the issue.
- Priming follows, once new diesel is in.
- The engine is started and tested to make sure it runs smoothly on fresh diesel.
At that point it is ready to pull away. We do everything wherever the vehicle has stopped, which means it never needs to be taken to a workshop, and if it has been noticed soon, it is very unusual for there to be permanent damage.
AdBlue in the diesel tank by mistake, around Derrymore?
The problem is not the same, though the opening step is — do not start it — if what got in was AdBlue instead of petrol. The lubrication a fuel system relies on is taken away by petrol, which thins the diesel. Rust and residue are what a diesel tank ends up with instead, because AdBlue is urea in water.
Frequently the more serious of the two, AdBlue — and the details sits on its own Derrymore page. Both are ours to handle.
What a petrol-in-diesel drain will cost in Derrymore
Our technicians cannot put one figure on this page frankly, as this job is not one job. What changes it:
- Has it been run or driven? Nothing else matters for as much.
- Wrong fuel in, against what your tank takes — that ratio.
- Which was put in: unleaded or AdBlue.
- Where is it? And can a van get to it and work there sensibly?
Tell us the car, the quantity and whether it has run, and you'll get a straight answer instead of a range. For the vehicle at home that's going nowhere and isn't urgent, is fine too.
Derrymore drivers ask us these about petrol in diesel
I'm on a forecourt in Derrymore. Can you drain the car here?
A large part of this work takes place there, so yes. Tell us which one you are at when you phone and we will tell you if our technicians can work there. With the site's permission our engineers visit another forecourt nearby and the other forecourts locally all the time.
Is there a sensible quantity of petrol in a diesel?
Litres are not the measure. Ratio is, and a lot more than either, it counts whether anything has been run. A nearly empty tank with five litres in it, against a full one with the same five: distinct situations, certainly. Either way, the work required comes down to one thing, which is whether your fuel system has had that mix drawn through it.
I drove the vehicle after putting petrol in my diesel. What now?
Pull over somewhere safe, turn off, then keep the car off. It's fixable a lot more commonly than motorists fear, even though driving is what moves the problem from the tank into your pump and injectors — and the single most useful thing you can do now is not restart it.
Is a fuel drain going to void my warranty?
No. Carried out properly, clearing and purging is no modification at all, and the warranty from your manufacturer is untouched by it. A disagreement over a warranty is likelier to come from running a diesel on petrol — so leave it switched off.
Could I put some two-stroke in and just drive?
Two-stroke oil solves a separate fault, and an old one at that. Nothing it does puts back what petrol diluted. No. Petrol remains in that tank after that, whatever else goes in, and your pump gets no reprieve from it.
Do I need a main dealer for petrol in a diesel?
There is no need to bring it to a dealership, as we drain and clean the vehicle wherever it is.
Waiting next to it?
Keep the engine switched off.
If you have already driven the car, pull in somewhere safe, switch it off then keep it off. Cold and still, a vehicle is in the best place available — and motorists fear this much more than the recovery rate warrants.
At the roadside, on the forecourt or at home — call-out fuel draining around Derrymore and across County Antrim.