--- title: Explained: Petrol in a Diesel Car Burdiehouse canonical: https://www.petrolinadieselcar.co.uk/petrol-in-diesel/burdiehouse-city-of-edinburgh/ location: Burdiehouse county: City of Edinburgh latitude: 55.893090 longitude: -3.162160 service: Petrol in a Diesel Car updated: 2026-10-17 --- # Burdiehouse: Petrol in a Diesel Car? How Worried to Be Far less than you likely are, provided it has not been started. Everyone around Burdiehouse begins with "have I ruined it?", and the fair answer is normally no: petrol left inside the tank of any diesel stays harmless until priming, cranking or driving draws it into your fuel system. Leave your motor off and ring Petrol in Diesel — that keeps it that way. Read on for three things: the effect petrol has inside a diesel engine, the signs of how far it has spread, and the way to make sure you don't repeat it. ## The motor and petrol in a diesel: what goes on Two tasks fall to diesel on its journey through a motor. It burns, and before it burns it protects. Extremely fine clearances go into the injectors and the high-pressure pump, and only your diesel flowing through stops their surfaces grinding together. Petrol handles the first job poorly and the second not at all. The rattling comes from petrol being made not to ignite when compressed, which is exactly the reverse of what a diesel needs. On top of that it is runnier than diesel, it strips away the protection the fuel system depends on, and any pump running on such a blend is wearing itself. The shape of the problem is clear when you put those together. It's circulation that causes the harm, not contact. Any tank with petrol in it is a fuel fault. Whatever a worn pump sheds goes on, carried by the fuel, into your injectors further along, which is why a pump that has been working on that petrol is where a mechanical problem begins. ## Four scenarios our technicians see in Burdiehouse: how serious is petrol in a diesel? The best case there can be: filled up, not once started. That petrol is inside your tank and only that tank, and the job is a drain and a flush where the vehicle sits. This is the one scenario that can only really occur at a forecourt, because anywhere else the vehicle has been driven to get there. Started for a moment, or just the ignition on. Petrol has left the tank and got to the fuel filter and the lines, since the system has been primed. Still normally straightforward: drain, flush, and your filter seen to. Those few miles on the road meant your pump working on fuel thinned by petrol the whole way. Tank, lines, filter, then clean fuel run through the entire system: that's this work, and the way the vehicle was driven matters as much as the mileage. Driving the kids to the local primary school is one kind of trip. A run as far as Edinburgh, under 5 miles away, is a very different job. So is any distance on the M8, under 10 miles from Burdiehouse, where your engine has been labouring hard the whole time. Driven until it complained. Clattering, an uneven idle, smoke, a throttle that has gone soft. What you are hearing is the motor signalling fuel that no longer behaves like diesel. Pull up wherever you are — the verge on Old Burdiehouse Road, a lay-by, a side street — then leave the vehicle where it is. The drain and flush-through still go first, and they deal with it: when a vehicle is stopped quickly, long-term damage is very rare. ## Burdiehouse motorists and the petrol in a diesel myths they hear Myth: "Fill it the rest of the way with diesel and it will be fine." It will not. Nothing is removed by topping up — you are left with a fuller tank, still the same mixture. A diesel fuel system doesn't tolerate petrol by percentage in the way that advice assumes. Myth: "A newer diesel can cope with a bit of petrol." If anything, the opposite. At higher pressure, through finer parts: that's how a newer diesel moves its fuel, so the protection matters for more, not less. "It starts, it drives, so no harm done" — the myth that catches more people than any other. A petrol engine fed diesel normally won't run, so the motorist stops and the damage stops with them. A diesel fed petrol usually starts, idles and drives away as if nothing has happened, whilst your pump grinds. A running engine doesn't mean fine. An outdated workaround for a distinct issue lies behind this one. Myth: "Add some two-stroke oil and drive the vehicle home." That petrol is still inside that tank afterwards, and whatever it has diluted is not put back. Once the engine has run, part of the petrol sits in the fuel filter and the fuel lines, not the tank — and the next start sends it right back through your pump. So the myth "drain the tank yourself and you're sorted" doesn't stand up. Emptying petrol into a can by the roadside is also genuinely dangerous. ## How does petrol in a diesel occur? A careless moment is rarely the cause, and nobody means to do it. A diesel nozzle generally won't fit a petrol motor, but the smaller petrol nozzle goes into the filler of a diesel nearly without resistance — so forecourts make this one mistake easy, and just in one direction. It happens when habit and the vehicle stop matching. Courtesy car, hire car, or a motor that's brand new. Households running one of each, petrol and diesel. A forecourt you know, only with its pumps arranged differently. Racing for a train outside Eskbank and fuelling up en route. The first fill-up in a diesel Nissan Qashqai after years of driving petrol is precisely the moment it occurs. With rain, a call arriving, or a car full of children to deal with, your hand just does what it has always done. ## How to avoid petrol in a diesel on your next fill-up around Burdiehouse - Not every forecourt in the UK keeps to green for unleaded and black for diesel, though most usually do. Read the petrol pump's label; the colour is only a clue. - The first fill in an unfamiliar car is the time to check the filler flap — inside it, or on the cap, plenty of cars state which fuel they take. - Good intentions count for less than a sticker or a fob in a bright colour on your diesel's key if a household has one of each. So mark it. - Say it before you lift it. On the first fill in a new or hired car, say "diesel" aloud before you lift the nozzle off the pump. It sounds daft and it does the trick. - Thinking about something else is when this becomes an easy mistake to make, and so put your phone away and keep your mind on the petrol pump. - Up to a point, a misfuel inhibitor helps: some diesels come with a filler designed to refuse a petrol nozzle, and aftermarket devices are available for the rest. Count it as a backstop, and keep checking the pump. - As soon as you notice, stop: less petrol in the tank means a weaker blend. What to do next doesn't change, though — still don't start the car. ## Put petrol in a diesel around Burdiehouse already? Then the order of things is short. Leave it unstarted, with your ignition switched off too. Yet on the forecourt, at Sainsbury's or anywhere else? Ask the staff to help you roll the vehicle clear of the petrol pump. Next, 0333 366 0103. We'll ask what got in, about how much, and if it's been run. Corrosion and deposits are the problem with AdBlue, whereas petrol means lost protection. So if it was AdBlue, say so — and read its own Burdiehouse page. ## Why one petrol in a diesel task around Burdiehouse costs more than another Four separate tasks lie behind the four situations above — which is why there's no honest single price. What shifts your cost is mostly which of them you are in. Two things come after that: the petrol that was put in as a proportion of what the tank holds, then the place your car is in and whether a technician can get to it safely. That's why we ask three questions before costing rather than after: what was put in, how much, and if it has run. A range turns into a straight figure when those answers are in. ## About Burdiehouse, for a moment Burdiehouse is a suburban area located on the outskirts of Edinburgh, sitting near the river at an elevation of around 123 metres. Burdiehouse is characterized by its predominantly detached housing stock and is situated close to nearby places such as Straiton, Southhouse, and Kaimes. Burdiehouse has a population of approximately 3185 residents and is around 4.3 miles from Edinburgh city centre. Burdiehouse is also relatively distant from London, at around 327.4 miles away. ## Across City of Edinburgh and around Burdiehouse: fuel drain cover The vans answering petrol in diesel calls in Burdiehouse, in the EH postcode area, also work the locations around it, Straiton, Southhouse and Kaimes included. The vehicle doesn't need to move to us: we drain at a forecourt, in a supermarket car park, in a lay-by or on your own driveway. ## In Burdiehouse and still at the pump? The best place there is, then — that's where you are. Keep it off. Ring.