--- title: Petrol in a Diesel Car Comely Bank — Next Steps canonical: https://www.petrolinadieselcar.co.uk/petrol-in-diesel/comely-bank-city-of-edinburgh/ location: Comely Bank county: City of Edinburgh latitude: 55.959190 longitude: -3.221480 service: Petrol in a Diesel Car updated: 2026-10-08 --- # The Next Steps, in Order: Petrol in a Diesel Car in Comely Bank Stop, and leave the engine off — not on, and not for a second to shift it. Emptied then flushed, right where it sits: that is usually all an unrun diesel with petrol in it takes. Whether it remains that straightforward rests on the minutes ahead more than on anything else. Here's the order of things from now, anywhere you are around Comely Bank. ## Petrol in a diesel? What to do in minute one Do the following before anything else, in this order. - Bleeding the fuel system draws petrol from your tank toward the components it harms, and switching the ignition on can be enough to do that. So your keys come out, and the ignition stays off altogether. - Topping up with diesel seems like it thins the problem. It doesn't: nothing comes out, and your tank just carries more of the same. - Hazards on. If you're at all near moving traffic, make the car easy to see before you do anything else. - The attendants will normally help you roll it clear of the pump. Ask, then roll it by hand — never under the engine, even for a few yards. - The first thing we will ask is which fuel you put in and roughly how much — and the receipt shows both. Keep it. On the M8, under 5 miles from Comely Bank, the next exit is the location to leave the vehicle; elsewhere, the first safe location to stop. Don't push on to the services. Then go back to stage one. ## The fork in each Comely Bank fuel drain: has it run yet? From this stage on, everything hinges on a single answer. Engine never run at all? - No place but your tank: that's where the petrol still is. - Where the car stands is normally where this work is done: a drain, then a flush. - Step one counts for exactly this reason: it's the best place to be in. If it's been started, even for a second: - Petrol has been pulled from your tank, past the filter and into your lines. - A longer run takes it all the way to the high-pressure fuel pump and the fuel injectors. - Miles is what turns it into a bigger job: flushed lines, a filter seen to, and at times more than that. The line falls there because diesel lubricates the high-pressure pump and the fuel injectors on its way through them — and petrol does not. A tank of petrol, left alone, hurts nothing. Move that petrol, though, and it grinds down the very parts that move it. ## What to have prepared when you call about petrol in a diesel from Comely Bank A little preparation is the difference between a van that finds you and a van that goes round. - Where you are. A postcode starting EH4 1 is the best place to start. - Give the road — Comely Bank Road or wherever you have stopped — or the car park. - Car parks are found more easily by what they serve: tell us the one at Waitrose, and it's easy. - Say what your vehicle is — make, model — and check it is diesel. - Petrol or AdBlue? Tell us which. They are separate jobs, and AdBlue has a separate Comely Bank page. - The amount: the receipt's litres, or else how long you held the nozzle in. - The distance it covered, and how hard, if it has run at all. - Hire or company car? Some contracts want the owner's go-ahead for the work, and sorting it before our technicians get there is quicker than afterwards. Then phone 0333 366 0103. If it can wait — your car is at home with going nowhere — works as well. ## Waiting for a fuel drain in Comely Bank: what to do Stick to these: well-meant help causes the harm during the wait. - Safety before your car. If it has stopped somewhere exposed, get yourself clear of the traffic and wait away from it. If it's safe where it sits, stay with it. - Not to roll it a few yards, not to check it is all right, not for a passer-by's kindness: nobody starts it. - None of it gets the petrol back out — not two-stroke oil, not injector cleaner, not anything from your boot. So no additives. - Siphoning petrol into a can at the kerbside is risky — and it also leaves whatever fuel has already gone beyond the tank. Do not drain it yourself. - Not for your radio, not for the windows: your ignition remains off. ## Van arrived? The fuel drain, one stage at a time - Fuel, amount, whether it's run: those replies set this job, and that is why you get a quote after them instead of before. - Then the tank is cleared, so the tainted fuel is taken out. - The fuel lines are flushed. If it ran, that petrol has shifted beyond that tank, and the lines are holding it. - Cleaned, or swapped if the vehicle has a usable one: the fuel filter is seen to next. - The system is primed on fresh diesel. - Starting it. Once your system is bled with new diesel, our technicians start it and confirm it runs properly. We remain until it's running on new diesel. Lasting damage is very uncommon if it has been spotted quickly, so your car can go straight back to normal use. ## Comely Bank, after your fuel drain: back on the road - Nothing unusual is needed after a start with clean diesel — normal driving will do. - Pull over and call us back if anything seems wrong early on — a light on the dash, smoke from your exhaust, an idle that is lumpy, or a throttle with a dead spot. - An insurer, a fleet manager or a hire company may ask what was done, and so hold on to the paperwork. - Check the label on the pump next time, not the colour of its handle. ## About Comely Bank and where it is Comely Bank is a suburban area in the City of Edinburgh, situated near the coast and approximately 1.3 miles from Edinburgh city centre. Comely Bank is characterized by its predominantly flat-type housing and is close to nearby places such as Stockbridge and Inverleith. Comely Bank sits at an elevation of around 23 metres, with views of the surrounding area. ## Fuel drains across Comely Bank and nearby The same teams that answer petrol in diesel call-outs around Comely Bank cover Stockbridge, Orchard Brae and Inverleith, and most of City of Edinburgh beyond them. If you are close to a border or somewhere hard to explain, ring and ask and not guessing. ## Leave it off and ring: petrol in a diesel around City of Edinburgh Keys out, engine off, the receipt in your pocket: that is step one done. The remainder is for Petrol in Diesel, wherever the car is — forecourt, kerbside or drive.