--- title: Dunnaval: AdBlue in a Diesel Tank, What Next canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/dunnaval-county-down/ location: Dunnaval county: County Down latitude: 54.045000 longitude: -6.032780 service: AdBlue in a Diesel Tank updated: 2026-10-25 --- # What Now? AdBlue in the Diesel Tank in Dunnaval One thing counts above all when AdBlue is in a diesel tank, and it is whether the motor has run afterwards. Out in Annalong or right in Dunnaval, an unrun motor must remain unrun. Keep nothing on, phone 0333 366 0103, and count on a proper flush plus a drain, done just where the car stands around Dunnaval. Stop the moment you safely can and turn off, if it has been run. It's a larger job, yet stage one doesn't change. Anywhere in County Down it happened, one of the cases below fits yours. ## Dunnaval forecourt: AdBlue in a diesel at the pump Picture it: standing by the petrol pump, holding the bottle, you realise the cap you opened was not the correct one. It could be the the nearest petrol station, or perhaps the another forecourt nearby, or a different station around Dunnaval. In short: no better spot exists to spot it. The AdBlue is in your tank and nowhere else. Nothing has drawn it in. Clearing the pump is no excuse to run it — and so do not get back in. Have the attendants to help rolling it into a space, save the bottle, then ring us right there. Can't move the vehicle beside the petrol pump? Our explosion-proof kit keeps a busy forecourt safe, and so we can drain it in place. ## AdBlue in the diesel tank on a Dunnaval drive? For days the dashboard had been nagging you. Only by the recycling, the empty container in your hand, did you look back at the cap you'd used on the driveway. Right off B7041 is no less likely from anywhere. Meaning? Provided the car hasn't moved since, it's second to the forecourt case. Diesel and AdBlue keep separate: the AdBlue settles to the floor of that tank and stays there, no matter how long it waits. Next: stop any early move by keeping your keys indoors, then ring us. Your driveway is where it is drained, whether around Dunnaval or Kilkeel. The pumps are quiet enough to use outside a house at night. ## On the road in Dunnaval with AdBlue in a diesel Rough running, smoke, falling power or a lit dashboard arrived a short way after the fill. Anywhere on High Row or on the road towards Newry — under 25 miles away. In short: the AdBlue has been pulled through the fuel system. Mileage decides how deep it goes: filter and pipework first, then the injection pump and each injector. Every restart, like every mile, pushes it on. What to do: pull over where it's safe and switch off. Dunnaval lies over 50 miles from the M55; there, pull off at the first junction rather than pressing on to the services. Don't restart it to see if it has cleared; it will not have. About what distance did it gone? Tell us as you phone. ## AdBlue in the wrong tank of a hire, lease or company car It is a vehicle you have had for a week. The AdBlue filler sits right next to the diesel one, which you didn't know, because your own car either has no AdBlue or keeps it somewhere else. Any driver, wherever around County Down, could do the same. What it means: the same as the situations above, depending on whether it has run, with one more step. Plenty of hire and fleet contracts need the owner's sign-off for work. Next: ring the rental company or your fleet manager first, and then us — sorting it before our arrival is quicker. Hanging on for a reply at the car park at the nearest station, or beside the centre? Leave the car off meanwhile. ## Dunnaval: unsure if it was AdBlue in your diesel tank? Truthfully, the best answer might be that you think it did. Too light, the bottle; a hint of ammonia round your filler; a hazy recollection of the cap. Look familiar? Maybe on a friend's driveway in Rostrevor, or in a rush by the local primary school on the school run. Meaning? Spills outside the filler don't touch your engine at all. AdBlue inside your diesel tank does. You can't tell which by turning the key, and doing so would pull in any AdBlue that is in the tank. Your move: act as though it did, and don't start your motor. Ring with what you saw: we would sooner find a clean tank than drain one after your engine has been run. ## Every AdBlue drain in Dunnaval shares these steps Whichever situation you are in, this job starts the same way. Filling station, driveway, the pub in the village's car park or a road beside a street just off the centre — our van reaches your vehicle, and three questions come next: what fluid, which quantity, and if it ran. Those replies decide the work, and you get our price by phone, before anyone heads out. Then that tank is emptied and your system rinsed thoroughly, which matters more with AdBlue than with petrol: AdBlue crystallises and is corrosive to some of the metals in a fuel system, so it does not rinse out on its own. Last come the fuel filter, cleaned or renewed if necessary; clean diesel; and a check of the car. Never started? In that case about half an hour on site covers most jobs. The last step is firing it up. We confirm it runs smoothly on fresh diesel before leaving. When it's spotted soon, the vehicle very seldom has long-term damage, and the entire job happens where it is. Nothing is taken upfront, settlement is made on the day, and you get what the insurer asks for: an engineer report plus a VAT invoice. Many policies include misfuelling, so look at yours while the van travels. ## About Dunnaval itself Dunnaval is a small coastal locality in County Down, situated near the towns of Kilkeel and Newry. Dunnaval lies at a low elevation of around 20 metres, close to the shores of the Irish Sea. Dunnaval is characterised by its predominantly detached housing stock, reflecting its residential nature. Dunnaval is part of a network of small settlements in the area, including Atticall and Killowen. ## Dunnaval and County Down: AdBlue drains across the area Atticall and Killowen get the same vans as Dunnaval, a coastal area, along with further places over BT postcodes. Your location is clearest from a postcode beginning BT34 4. Whether your car is on a lay-by on the way to the green space at the edge of the village or in a car park in the middle of Dunnaval, it does not need to move. Our technicians drain the vehicle where it sits. Guessing won't help beside the far end of the built-up part, close to a county line or anywhere awkward to describe; ring and check. ## In one line: your situation Where it hasn't started, phone and keep it that way. Started already? Stop, turn off, phone. Petrol in Diesel takes over the remainder whichever case, across Dunnaval and County Down, on 0333 366 0103.