--- title: Sherwood: Petrol in a Diesel Car? Next Steps canonical: https://www.petrolinadieselcar.co.uk/petrol-in-diesel/sherwood-midlothian/ location: Sherwood county: Midlothian latitude: 55.871350 longitude: -3.096910 service: Petrol in a Diesel Car updated: 2026-10-21 --- # The Next Steps, in Order: Petrol in a Diesel Car in Sherwood Not for a second, and not to move it: your motor stays off. Stop there. Hasn't been run? Then petrol in a diesel tends to be a simple drain-and-flush job wherever the vehicle has stopped — and no other factor settles that more than these next few minutes do. Here is the order of things from here, anywhere you're in Sherwood. ## Minute one: petrol in a diesel, engine off In this sequence, all before anything else: - Keys out of your ignition. Turning the ignition on can be all it takes to prime your fuel system, while priming pulls petrol out of your tank towards the parts it harms. Keep the vehicle off completely. - Topping up with diesel sounds like it dilutes the trouble. It doesn't: nothing comes out, and that tank simply holds more of the same. - Get the vehicle easy to see first — hazards on — if there's moving traffic anywhere near you. - The staff will usually help you roll it away from the petrol pump. Ask, then move it by hand — never under the motor, even for a few yards. - Hold on to the receipt: the fuel and roughly how much are printed on it, and they are what we ask for first. Still driving when you noticed? Come off the M8 at the next junction if that is where you are, under 10 miles from Sherwood, and stop somewhere safe rather than pressing on to the services. Then begin at stage one. ## Has it run yet? The fork in each Sherwood fuel drain From this point on, everything hinges on a single answer. If it has not once been started: - All the petrol sits inside that tank, and only there. - The job is a drain and a flush, normally done where the car stands. - This, here, is the best position to be in, and the reason step one matters. Run at all, even for a second: - Petrol has been drawn from the tank, past your filter and into the lines. - A longer run takes it right through to the high-pressure pump and your injectors. - The further it went, the larger this job — your lines, the filter, and now and then more besides. Diesel keeps your high-pressure pump and your injectors protected as it runs through them. Petrol gives them nothing, and that is why the line is drawn there. A tank of petrol, left still, hurts nothing. Once it's pumped, petrol begins grinding whatever moves it. ## Before you call about petrol in a diesel in Sherwood: what we need Prepare a little, and the technician finds you rather than circling. - Where you are. A postcode beginning EH19 3 is the best place to start. - The street or the car park. A road name is a help — Wolsey Avenue, or wherever you have pulled up. - Car parks are located more easily by what they serve: tell us the one outside Co-op Food, and it is easy. - The make and model of the vehicle, and the fact it is a diesel. - Tell us which went in — petrol or AdBlue — because AdBlue is a separate job, with a page of its own for Sherwood. - Roughly how much — in litres from the receipt, or by how long the nozzle was in. - If it's run, how far plus how hard — as well as if it's run at all. - Hire or company car? Some agreements need the owner's authorisation for the work, and getting it before our technicians arrive is quicker than after. Call 0333 366 0103 once you have got that together — or, if the car is at home, going nowhere, use . ## Sherwood fuel drain on its way? While you wait Help, however well meant, is the thing that does the damage while you wait. So stick to these. - Where your car has stopped decides where you wait. Somewhere exposed: away from it, away from the traffic. Sensible: with it. Either way, safety before the vehicle. - Not to roll it a few yards, not to check it is all right, not for a passer-by's favour: no one starts it. - None of that takes the petrol back out — not two-stroke oil, not injector cleaner, not something from your boot. So no additives. - A home-made drain leaves your fuel already gone beyond that tank, and siphoning petrol by the road is hazardous too. - Ignition remains off. Even for the radio or the windows. ## The fuel drain, step by step, once our van arrives - Our quote comes after three questions, not before them — what went in, how much, and whether it's run — because those answers decide the job. - Then the tank is drained, so the polluted fuel comes out. - If it ran, the lines are carrying petrol that has moved beyond your tank — so they are cleaned. - Then your filter: changed where there is a workable one, cleared where there is not. - The fuel system is primed on fresh diesel. - The start. With new diesel in and your system primed, it's started and checked to be sure it runs properly. The vehicle has fresh diesel running through it before our engineers go. It's very rare for a vehicle caught early to be left with long-term damage, and normal use resumes right away. ## After your fuel drain: back on the road around Sherwood - Nothing unusual is needed after a start with fresh diesel — normal driving will do. - Watch the first miles. A warning light, smoke, a rough idle or a flat spot under your throttle tells you to pull over then ring us back. - Hold on to your paperwork. A hire firm, a fleet manager or an insurer may ask what was done. - Check the label on the pump next time, not the colour of its handle. ## About Sherwood itself Sherwood is a suburban area in Midlothian, situated on the riverside at an elevation of 87 metres, with terraced housing being the predominant type of accommodation. Sherwood lies close to the nearby towns of Waverley, Bonnyrigg, and Lasswade, and is approximately 6.7 miles from Edinburgh. Sherwood is part of the wider Edinburgh urban area, with the city's amenities and services within easy reach. Sherwood has a population of around 6501 residents. ## Sherwood and nearby: fuel drains across the area Petrol in diesel call-outs around Sherwood and in Waverley, Bonnyrigg or Lasswade all reach the same vans, which cover most of Midlothian as well. Somewhere tricky to explain, or close to a border? Asking is better than assuming — ring. ## Petrol in a diesel in Midlothian? Leave it off then ring Stage one is all of that: engine off, keys out, receipt in your pocket. From there Petrol in Diesel takes over, at the forecourt, by the kerbside or on your drive.