--- title: Drain Petrol From a Diesel Car — Sixpenny Handley canonical: https://www.petrolinadieselcar.co.uk/petrol-in-diesel/sixpenny-handley-dorset/ location: Sixpenny Handley county: Dorset latitude: 50.953600 longitude: -2.004400 service: Petrol in a Diesel Car updated: 2026-10-16 --- # Sixpenny Handley: Put Petrol in a Diesel Car? Petrol in Diesel drains and flushes wrong-fuelled cars where they stand, on the forecourt, by the roadside or on a driveway, throughout Sixpenny Handley and the remainder of Dorset. The first thing to do is not to turn on the motor. When your engine has not yet run and the fuel is still inside that tank, a tank drain is nearly always all it takes, and the coming few minutes determine that, not how much got in. Call us before everything else starts, and you'll see what happens after that. ## Now what? Petrol in a diesel, step by step - Do not start it. Turned on all the same? Then do not rely on it. Diesel in a petrol car typically won't run, and so the person stops and the wear halts with them. Petrol in a diesel? It starts. It idles. It moves off happily, for several miles. Most people get that reversed. It's not okay — the fuel system is wearing every mile you cover. - Diesel burns, and before it combusts it lubricates — your high-pressure pump, the injectors. Petrol handles only the burning. So leave your ignition alone as well: switching it on is commonly enough to prime the system, and priming draws petrol from that tank into just those components. - Don't dilute it. Diesel poured on top takes out nothing, so all you get is more of what was already there, because percentage isn't how a diesel fuel system tolerates petrol. Super unleaded? Simply petrol. The type makes no difference. - A motor that has never moved is the quickest one to sort out, so wait where you are if you reasonably can. Parked on the verge on Littlefield Lane? Hazards on, and leave it there. A tricky place works for us better than a started engine. - Before you ring, have your position. Anything closest to you with a label on it, plus a postcode that starts SP5 5 — that's what determines whether the technician turns up or circles. - Ring 0333 366 0103. Anticipate three questions — what was put in, roughly how many litres, plus whether the motor has been started. Those replies shape all that follows. Quarter past eight, a rushed top-up on the drive in, and it dawns on you around eleven — by which time the diesel Volkswagen Golf has been parked outside Tisbury for three hours. Ring us and keep it precisely where it sits. The trip in is the thing that counts here, as diesel performs two jobs on its way through a motor: it burns, and before it burns it protects that high-pressure pump and its injectors. Petrol manages the first and not the second. So those couple of miles were driven with the pump labouring on a fuel that had shed a great deal of the protection it is made for — which is why the question we ask is how many miles you drove, not how long your motor has been sitting. ## At a forecourt: draining petrol from your diesel Forecourts are where this work often starts, and where a good chunk of that finishes. Still at the nearest petrol station? Then that is generally where it takes place. Station forecourts are normal for us, with the permission of the site. Nowhere else except the forecourt can this be spotted with the motor still untouched. We can still deal with it where it sits, even away from the forecourt. In a car park, on a private drive or in a lay-by, the vehicle has been switched on and driven there, and that drew fuel through the fuel filter and into the high-pressure fuel pump, right from that tank. None of that is a calamity, although the flush then has to reach past that tank to the fuel lines and the filter, and the few seconds between reading the receipt and going for your key are what settle that. The attendants will usually help you roll the car out from the petrol pump so the next motorist can get through. That's worth doing. Firing it to move four car lengths isn't. The enquiry our technicians want runs like this: diesel Skoda Octavia, a few litres of unleaded, driven a couple of miles, now turned off at Morrisons. What we are really asking is how much fuel the pump has sucked — not how long ago it was. ## Coverage near Sixpenny Handley These same rounds get us to Deanland, New Town, Deanend, Dean and Woodcutts as well as Sixpenny Handley, which is a rural village. There are separate pages for the majority of towns around Dorset, and the ones named above are merely the immediate neighbours — so yours being left off that list tells you nothing whatsoever about whether we come. Assuming is the habit to avoid, particularly on the boundary or anywhere the satnav struggles. Call us and check. That map shows the patch the page covers. Kerbside, forecourt, private drive, car park: the lot is ground we cover, and none of that needs the car to move to us. Hazards on. Motor off. Ring us. It is twenty to nine at the gates of Sixpenny Handley First School and Nursery, you're late, and the till receipt says unleaded — and though three miles in your Peugeot 308 feels like nothing, fuel gets supplied on demand, and a rushed run needs plenty of that. ## Roadside stops in Sixpenny Handley Not everyone finds a decent spot to stop. Set off, then realised? Landed by the verge of Adams Lane, or stuck in some lay-by with the hazard lights flashing? That's a common call here. Not an unusual one. Sit by the car when it's wise to sit there, but clear of the vehicle when it isn't. It will usually oblige. A diesel running on petrol limps along perfectly willingly, and that is the catch: restart it to reach somewhere better and that mixture goes further into the fuel system with every mile covered. We'll send our van to a tricky spot without any trouble, and for your car that is a lot better than pressing on. ## Petrol in a diesel, and the motor has travelled This is where your M27 counts, under 25 miles away from Sixpenny Handley. Some way along, and onto it in the first place: a wrongly fuelled diesel will often manage both before anything feels wrong. What you get then is seldom a tidy stop. Power ebbs away, the idle turns lumpy, and there may be some smoke. Take the first junction that's safe, stop there, and don't restart it to reposition. On a longer run — anything approaching the under 15 miles to the nearest city — take it the contamination has been through the filter, the pump and the fuel injectors, and say so when you ring. It alters what our technicians bring. Pull in somewhere safe, turn off then ring us. Happy on the way out to Currier's Coppice, flat on the way back? Then look at that tank. Petrol thins diesel; runnier fuel leaks past the precision parts that build injection pressure; and the further your diesel Audi A3 travelled, the less of that pressure it held. ## Where is Sixpenny Handley? Sixpenny Handley is a village in Dorset, situated inland at an elevation of around 85 metres, with detached housing being the predominant type of accommodation. Sixpenny Handley lies near the villages of Deanland, New Town, and Deanend, and is approximately 12 miles from the city of Salisbury. Sixpenny Handley is a relatively small community, with a population of around 910 people, and is located about 90 miles west of London. Sixpenny Handley sits in a rural area, surrounded by countryside typical of the South West region. ## When we get to you around Sixpenny Handley: what we do - Our technicians find out what went in, how much, and if your motor has run. The responses alter the work, which is why our engineers ask before giving a price. - Your tank gets cleared of it. - Fuel lines are flushed through and your filter cleaned, leaving nothing in the fuel system that caused any of this. - Clean diesel goes in, and then the fuel system gets bled. - It's started with new diesel in it, and our technicians confirm that it is running properly. At that point it is ready to pull away. Permanent damage is very unusual when it has been spotted soon, and because everything is done where the car is, it never has to go to a workshop. ## A different job: AdBlue in a diesel tank around Sixpenny Handley Never crank it: that opening rule holds whether what was put in was AdBlue or petrol. What differs is the problem itself. Petrol thins the diesel and removes the lubrication the fuel system depends on. AdBlue? Urea dissolved in water. Tip that in with the diesel and you get rust instead, plus build-up. Usually the more significant of the two, AdBlue — and the full story lives on its own Sixpenny Handley page. Both are ours to deal with. ## What a petrol-in-diesel fuel drain costs around Sixpenny Handley Honestly, no single price belongs on a page like this. The job changes. Here is what varies it: - This is the main one: whether the engine has been run, or driven. - How much of the wrong fuel got in, compared with how much your tank holds. - Which got in: petrol or AdBlue. - Whether a technician can sensibly reach your vehicle and work on it, which depends on where the vehicle is. Tell us your car, the quantity and whether it has run, and you will get a clear answer rather than a range. Not pressing, with the car at home and going nowhere? Then is fine. Drain it and put clean diesel in — that's the advice you'll get, typically from someone sure of themselves, and it is half right. Do precisely that to a diesel Seat Leon near Wor Barrow and it would start, which is what makes the suggestion sound plausible. What takes place next is the problem: your engine at once sucks the petrol still sitting in the fuel filter and the feed lines straight back through the pump, since draining a tank does nothing about fuel that has already left it. Call us instead. We flush the circuit and take the filter off where the vehicle has a serviceable one, which is the difference between your car being fixed and your car merely starting. ## Sixpenny Handley motorists ask us these about petrol in diesel ## I'm on a forecourt in Sixpenny Handley. Can you drain it here? A big portion of this work takes place there, so yes. Tell us which one you are at when you ring and we will tell you if our technicians can work there. With the owner's permission our technicians attend another forecourt nearby and the other forecourts locally regularly. ## A couple of litres of petrol in a diesel — too much? Litres aren't the measure. Proportion is, and far more than either, it matters whether anything has been run. What determines how much work is needed is whether that blend has been pulled through the fuel system — because although five litres in a nearly empty tank is a distinct case from five in a full one, either way that is the question. ## I put petrol in my diesel and drove it. What next? Switch off somewhere sensible, then keep it that way after you stop. Driving is what moves the problem from the tank into your pump and injectors — but it's fixable much more often than motorists assume, and the single most helpful thing you can do now isn't restart the car. ## Is a fuel drain going to void my warranty? No. Carried out properly, draining and rinsing is no alteration at all, and the warranty from your manufacturer is untouched by it. A dispute over a warranty is likelier to come from running a diesel on petrol — so leave it switched off. ## Can I just add two-stroke oil and drive home? What petrol has weakened isn't replaced by two-stroke oil, which is an old remedy for a distinct issue. So no. Your tank still has petrol in it after that, and your pump still has to live with it. ## Do I need a main dealer for petrol in a diesel? There's no need to bring it to a dealership, as our technicians drain and clean the vehicle wherever it is. ## Is the car still with you? That engine stays off. If you have already driven the car, pull over somewhere safe, turn it off and keep it off. Cold, stationary, going nowhere: that is the best position to be in. Drivers fear this far more than they need to. Mobile fuel draining around Sixpenny Handley and throughout Dorset — at the roadside, on the forecourt or at home.