--- title: Drain Petrol From a Diesel Car — Wookey Hole canonical: https://www.petrolinadieselcar.co.uk/petrol-in-diesel/wookey-hole-somerset/ location: Wookey Hole county: Somerset latitude: 51.223770 longitude: -2.670430 service: Petrol in a Diesel Car updated: 2026-10-12 --- # Put Petrol in a Diesel Car in Wookey Hole? Don't Start It With your tank still holding the petrol and your engine not yet started, nearly every job requires only a drain, so leave the engine off. That result is decided in the minutes straight after filling up, and not by the amount that went in. Across Wookey Hole and the rest of Somerset, Petrol in Diesel drains the vehicle and cleans it where it sits, whether by a roadside, on a driveway or at a forecourt. Our team shall tell you what the following part is. Call us — it happens ahead of all else. ## Your next five minutes: petrol in a diesel - Do not start it. Started all the same? Then do not believe it. Diesel in a petrol vehicle generally will not run, so the motorist stops and the harm halts with them. Petrol in a diesel? It starts. It idles. It drives off happily, for a couple of miles. Motorists get that muddled. It's not okay — that fuel system is wearing down every mile you do. - Leave the car's ignition alone also. Diesel has two tasks: it burns, and before it combusts it greases the high-pressure fuel pump and those injectors. Petrol does the first but not the second. Flicking the car's ignition on is often all it takes to prime the system, which pulls the petrol out of the tank and into exactly those components. - Do not weaken it. Diesel tipped on top takes out nothing, so all you get is more of what was already there, since percentage isn't how a diesel fuel system accepts petrol. Super unleaded? Still petrol. The type makes no difference. - Sit tight if it's sensible to. Hazards on, engine off, leave the car. Wherever you have stopped — the verge on High Street, anywhere — a difficult location for us beats a started diesel, and nothing is easier for us to sort out than a motor that never moved. - Check where you are before calling. A postcode beginning BA5 1, and the name of whatever is next to you. Otherwise the technician circles instead of turning up. - What was put in, roughly how much, and also whether your car has run — those three replies determine the full call-out. Dial 0333 366 0103 then tell us. Don't run it home. The commute has already sent a real load of petrol-thinned diesel through your high-pressure pump of your Volkswagen Golf, and the journey back would about double it for no gain at all. Phone us from the platform if that's simpler. We do not need you standing over the car outside Castle Cary whilst our engineers work, and we would far rather talk to you tonight than learn on Monday. ## Can petrol be taken from your diesel at a forecourt? A big part of the job gets finished at the pump, as that's where it mostly begins. The drain normally gets done on the spot. Still on the forecourt at Esso? Given the owner's permission, that's a place our engineers work, and regularly. Before your engine has fired — a forecourt is the one location it is halted. We can still deal with it where it stands, even away from the forecourt. In a car park, on a drive or in a lay-by, the car has been fired up and driven there, and that drew fuel through the fuel filter and into the high-pressure pump, all the way from your tank. None of that is a disaster, although the flush then has to go past that tank to your lines and your filter, and the few seconds between checking the till receipt and reaching for your key are what settle that. Clear of the pump, the next driver can get by — so yes, let the attendants help you move the vehicle. Very much worth doing. Starting the car over four car lengths? No. ## Can our technicians cover your end of Wookey Hole? Being a rural village, Wookey Hole has a frequent call, whilst the areas close by come with it on the same round: Lower Milton and Upper Milton, Henley and Haybridge, Walcombe. If yours is not on that list it does not mean we do not come — there are dedicated pages for the majority of places across Somerset, and the ones listed above are merely the closest neighbours. Near the border, or anywhere a satnav misreads? Call us and check rather than presuming. This map shows the patch the page includes. Kerbside, forecourt, driveway, car park: all of it is territory we cover, and none of it needs the car to travel to us. Nothing tells you, as from behind the wheel there's nothing to be warned about. The diesel BMW 3 Series will have felt perfectly usual on the way back from St Joseph and St Teresa Catholic Primary School, and they all do — which is the catch with petrol in a diesel instead of the reverse. Diesel in a petrol car generally refuses to run, stopping the motorist and stopping the damage with them. Petrol in a diesel fires up, idles, pulls away as though nothing had happened, and all the while your pump keeps working without the lubrication its fuel is supposed to supply. Tell us approximately how far, and how hard. The harder matters more. ## Stuck at the kerbside anywhere around Wookey Hole? Not everyone finds a suitable place to pull in. A common call for us rather than an odd one: noticed after setting off, ended up on the verge beside Orchard Paddock or in a lay-by with your hazards flashing. Whether you sit beside the vehicle or move away from it rests on if staying there seems wise. Never start up the motor to limp it somewhere better — a diesel running on petrol will often oblige, and every mile it obliges for is drawing that mix further into your fuel system. We'll bring our van to an inconvenient location without any trouble, and for the car that's a lot better than driving on. Here is what a job in the car park by Wookey Hole Club typically looks like. We arrive at your car, ask what went in, roughly how much, and whether your engine has run since — those three answers determine most of the work. Then the polluted blend comes out of that tank, the fuel lines get rinsed, and the fuel filter comes off where your Mercedes C-Class has a replaceable one. Fresh diesel goes in and the fuel system is primed. Then our technicians start the engine, make sure it runs smoothly, and you drive away. ## So you've driven it? Petrol in a diesel over some miles Here is where the M5 comes in — under 15 miles from Wookey Hole. A loss of power, an uneven idle, some smoke: those are the signs when they come, instead of a tidy stop — and a misfilled diesel will usually get you onto it and some distance along before anything seems wrong at all. Come off at the first safe exit, switch off, and do not start the car to move it. Long trip? Anything near the under 3 miles to the nearest city and you should suppose the lot — filter, pump, injectors, all of that got to by the mixture. Say that on the call, as it alters what goes in the van. ## A little about Wookey Hole Wookey Hole is a small village in inland Somerset, situated near the city of Wells and close to the nearby places of Lower Milton, Upper Milton, and Henley. Wookey Hole sits at an elevation of around 60 metres, with detached housing being the predominant type of accommodation in the area. Wookey Hole is located approximately 111 miles west of London, making it a relatively rural community in the South West region. Wookey Hole has a population of around 631 residents, according to recent estimates. ## The job in Wookey Hole, step by step - The answers alter the work, which is why our engineers ask before giving a price: what was put in, how much of that, and whether your engine has run. - Out goes the tainted fuel. - What is remaining in the fuel system should not be what started the problem, so the fuel lines get cleaned and your filter cleared. - We pour fresh diesel in and prime the fuel system. - The motor is started and checked to confirm it runs properly on fresh diesel. From there, you're ready to pull away. Lasting damage is very unusual when it has been caught soon, and since everything is done where the car is, it never has to be taken to a garage. Your pump rests before the injectors, and so whatever a worn one gives off travels downstream with your fuel — which is why we are direct about not driving on. Phone us, and leave the diesel Audi A3 where it is near St Mary Magdalene. ## Wookey Hole AdBlue removal is a distinct problem AdBlue instead of petrol? Then the first instruction is unchanged — your motor remains off — whereas the problem underneath it is a different one altogether. Petrol thins your diesel and strips the protection your fuel system depends on. Urea dissolved in water, AdBlue, and in a diesel tank that leads to rust and deposits. Both are ours. There is a separate Wookey Hole page for AdBlue removal, with the full story on it — including the reasons it frequently turns out to be the worse of the two. Unfamiliar spots are where this happens most, and the reason is mechanical rather than careless: the smaller petrol nozzle fits a modern diesel filler neck with practically no resistance at all. Filled up close to Wookey Hole Community Hall without thinking, in a diesel Peugeot 208 you have had for two days? Ring us where you are. Hire and courtesy cars usually get driven further before anyone notices, and distance is what settles how much petrol gets to the injectors. ## What a petrol-in-diesel drain will cost in Wookey Hole Frankly, no single price fits on a page like this. This job differs. Here is what moves it: - This is the key one: whether the engine has been run, or driven. - How much of the wrong fuel went in, set against how much the tank holds. - AdBlue or petrol, whichever got in. - Access: the car's position, and whether working on it there's safe for a van. Tell us the vehicle, the quantity and if it has run, and you will get a clear answer instead of a range. Car at home, going nowhere, nothing time-critical about it — is fine for that. ## Petrol in diesel: common questions in Wookey Hole ## I'm on a forecourt in Wookey Hole. Can you drain it on the spot? A fair share of this work happens there, so yes. Our engineers work at BP and the other forecourts around town regularly, with the owner's consent — tell us which one you're at when you call and we'll tell you whether we can work there. ## A couple of litres of petrol in a diesel — too much? It rests on the ratio instead of the litres, and much more on whether your motor has run. An almost empty tank with five litres in it, against a full one with the same five: different situations, certainly. Either way, the work required comes down to one thing, which is if the fuel system has had that mix pulled through it. ## Already driven it with petrol in the diesel? What then? Stop safely. Off. Nothing after that. Driving shifts the issue along — out of the tank, into the pump and injectors. Motorists fear it a good deal more than the recovery rate warrants, mind. The one really helpful thing left to you isn't restarting the car. ## Is a fuel drain going to void my warranty? A drain and flush carried out properly isn't a change and does not invalidate a manufacturer's warranty. Running a diesel on petrol is the thing likelier to cause a dispute with one, which is another good reason to leave the vehicle switched off. ## Can I just add two-stroke oil and drive home? No. It belongs to a separate problem from a separate era, and petrol has thinned something no oil of that kind replaces. The pump still has to cope with it, since your tank still has petrol in it later. ## A main dealer for petrol in a diesel — essential? There's no need to bring it to a dealership, as our technicians drain and clean the car wherever it is. ## Still with your vehicle? Keep it shut off. If you have already driven it, pull over somewhere safe, switch it off then leave it off. A stationary, cold vehicle is the best place to be in, and this is recoverable from far more regularly than drivers assume. Draining misfuelled cars, Wookey Hole and the rest of Somerset, wherever they are. Roadside. Forecourt. Home.