--- title: Petrol in a Diesel Car Selkirk — Next Steps canonical: https://www.petrolinadieselcar.co.uk/petrol-in-diesel/selkirk-scottish-borders/ location: Selkirk county: Scottish Borders latitude: 55.547760 longitude: -2.840670 service: Petrol in a Diesel Car updated: 2026-10-19 --- # What Happens Now: Petrol in a Diesel Car in Selkirk Not for a second, and not for moving it: the motor stays off. Stop there. The next few minutes settle it more than anything else: petrol in a diesel still unrun generally comes down to clearing and purging, on the spot. From now on, in order, wherever you are around Selkirk: ## Petrol in a diesel, motor off — the first minute In this sequence, all before anything else: - Priming your fuel system pulls petrol from your tank toward the components it damages, and turning your ignition on can be all it takes to do that. So your keys come out, and your ignition remains off altogether. - Do not top it up with diesel. Adding diesel takes out nothing. You end up with a fuller tank of the same mixture. - Hazard lights on. If you're at all near moving traffic, make the vehicle easy to see before you do anything else. - Off the petrol pump by hand. On a forecourt, get the attendants to help you roll the car away from the petrol pump. Don't start the vehicle to shift it, however short the distance. - Keep the receipt: the fuel and roughly how much are printed on it, and they're what we ask about first. Still on the move when you noticed? Come off the A74(M) at the next exit if that is where you are, under 50 miles from Selkirk, and stop somewhere safe instead of pushing on to the services. Then begin at step one. ## Has it run yet? The fork in each Selkirk fuel drain Everything after this stage rests on one answer. If your motor has not run at all: - Just your tank has petrol in it so far. - Usually it's drained and purged right where your car is. - This is the best spot to be in, and the whole reason stage one matters. Run at all, even for a second: - Out of your tank, past your filter, into your lines: that is how far the petrol has got. - Your high-pressure pump and the injectors see it too on a longer run. - The farther it went, the bigger the job — the fuel lines, the filter, and now and then more besides. Why the line falls there: diesel lubricates the high-pressure fuel pump and the injectors as it flows through them, and petrol doesn't. Nothing is harmed by petrol that's only resting in a tank. Petrol being pumped is wearing the components that shift the car. ## Calling about petrol in a diesel from Selkirk: what to have prepared A little preparation is the difference between a technician that finds you and a technician that circles. - Your location: a postcode starting TD7 4 serves best. - Name the road — High Street or wherever you have pulled up — or the car park. - Or the landmark. A car park is quicker to find by what it serves, like the one at Co-op Food. - That it is a diesel, along with the make and model of your car. - Say which got in — petrol or AdBlue — since AdBlue is a separate job, with a page of its own for Selkirk. - How long the nozzle was in, or the litres on your receipt — either gives us how much. - If it's run, how far plus how heavily — and whether it has run at all. - Hire or company car? Some contracts need the owner's go-ahead for this work, and getting it before our technicians get there is quicker than after. Ring 0333 366 0103 once you've got that ready — or, if your car is at home, going nowhere, use . ## Whilst you wait for a fuel drain around Selkirk The wait is where well-meant help does the damage. Hold to these. - Safety before your car. If it has stopped somewhere dangerous, get yourself clear of the traffic and wait away from it. If it's safe where it stands, wait with it. - A kind passer-by doesn't fire it up. Nor does anybody wanting to check it still works, or moving it a few yards. - None of that gets the petrol back out — not two-stroke oil, not injector cleaner, not something from the boot. So no additives. - Siphoning petrol into a can at the roadside is risky — and it still leaves whatever fuel has already gone beyond your tank. Do not try a home-made drain. - Not for your radio, not for your windows: the ignition stays off. ## The fuel drain, step by step, after the van arrives - Three questions. What got in, how much, and if it has run. The answers shape this job, which is why our quote comes after them and not before. - Clearing it is how that mixture gets taken out of the tank. - If it ran, your lines are carrying petrol that has moved beyond the tank — so they're cleaned. - Where the car has a serviceable filter, it's replaced; if not, cleared. - Your system is primed with clean diesel. - Starting it. Once the system is primed with clean diesel, our technicians start it and check it runs properly. The vehicle has fresh diesel running through it before our engineers head off. It is very unusual for a vehicle caught soon to be left with long-term damage, and normal use starts again at once. ## Once your fuel drain is done: driving in Selkirk again - Nothing unusual is needed after a start with fresh diesel — ordinary driving is all. - Give the first miles your attention. Smoke appearing, a warning light coming on, your idle going lumpy or the throttle stumbling: pull over then ring us back. - The documents answers the question a rental company, fleet manager or insurer may ask: what work was carried out. Keep it. - Read the label on the pump next time, not the colour of the handle. ## About Selkirk, briefly Selkirk is a town situated in the Scottish Borders, lying on the banks of the River Ettrick at an elevation of around 175 metres. Selkirk sits near several smaller communities, including Hartwoodburn and Philiphaugh, and is located approximately 31 miles from Edinburgh. Selkirk has a population of around 5528 people, predominantly residing in flats. Selkirk is also relatively distant from London, at around 300 miles away. ## Fuel drains in Selkirk and the locations nearby Petrol in diesel jobs in Selkirk and in Hartwoodburn, Bridgelands or Philiphaugh all reach the same vans, which reach most of Scottish Borders as well. Somewhere tricky to describe, or close to a boundary? Asking is better than assuming — ring. ## Ring, and leave it off — petrol in a diesel in Scottish Borders Motor off. Keys out. Receipt in your pocket. That's the whole of stage one, and Petrol in Diesel takes it from there — at the kerbside, at the forecourt or on your drive.