--- title: Explained: AdBlue in a Diesel Tank Lurganare canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/lurganare-county-armagh/ location: Lurganare county: County Armagh latitude: 54.230000 longitude: -6.352000 service: AdBlue in a Diesel Tank updated: 2026-10-10 --- # Why It Happens and How to Prevent It: AdBlue in a Diesel Tank in Lurganare Leave your motor and ignition off and ring 0333 366 0103 first — the rest can wait if AdBlue is already in the diesel tank. Caught before the motor runs, it's normally a drain and a thorough flush, done where the car is in Lurganare. If you are reading before it has happened, the remainder of this page is about why it happens and how to make sure it doesn't. ## Why does AdBlue in a diesel motor need its own filler? No single fluid but two: that's how many modern diesels around Lurganare and Newry run, with diesel feeding your engine. Your exhaust, not the engine, is where AdBlue goes: sprayed into the fumes to fresh them, from its own tank. Separate tanks, different fillers. On a lot of vehicles the two sit side by side under the same flap; on others the AdBlue filler is in the boot or under the bonnet. Diesel gets filled at each filling station visit, week in, week out. The AdBlue side is fuelled far less regularly, normally from a bottle, and usually by somebody who has to stop and think where it goes. Mistakes happen in the gap between the two. ## AdBlue in the diesel tank around Lurganare: how it happens It is seldom carelessness. Three things tend to line up. The warning comes first. As AdBlue runs low the vehicle tells you, and if it runs out completely, your vehicle goes into limp mode. So the top-up is done in a hurry: on a drive off South Crescent before work, or in the car park at the pub in the village on the way home. The old car's cap is where the hand goes — but a hire car, a new motor or a company car keeps the fillers elsewhere. That's the second factor: an unfamiliar car. A spout-topped bottle meets no obstacle at a diesel filler no more than at an AdBlue one. So the tip, once begun, keeps on. Whether it occurs in Mullaghglass or the middle of Lurganare, it's the same few seconds. ## Telling the AdBlue filler from your diesel filler A couple of seconds is all these take — so run through them before you pour anything, on a driveway in Poyntzpass or a forecourt around Lurganare. - Blue and marking: an AdBlue cap is regularly blue, or says "AdBlue", where a diesel cap normally does not. Go by the cap, not where it sits. - Many cars give AdBlue the smaller neck of the two. - Lift the flap and check for a label — many cars show what belongs in which filler right there. - Cannot see it next to your diesel filler? Then look beneath the bonnet or in the boot — the handbook will say where. - Collecting a hire or company car, say at the car park outside the nearest station? Ask whoever drove the vehicle last before you set off, rather than once the light comes on. ## AdBlue top-ups that never reach your diesel tank When the light goes on, anywhere across County Armagh, use this routine. - Pull in on level, motor off, with time to spare — never hurried on the side of Heugh Road. - Say "AdBlue" out loud as you unscrew the cap, after you find the AdBlue filler and read it. Daft, perhaps, yet it works. - Leave your diesel cap on. If both sit under one flap, check the diesel cap is still closed before you lift the bottle. - Stop once your tank is topped up or the bottle runs dry; until then, pour gently using its own spout. - Close the cap and check a second time. Make sure your diesel cap was never opened. Only then start your car. Spot at stage two or three that it's already gone into the diesel side? Then stop just there. Step five is off limits. ## Put AdBlue in the diesel tank in Lurganare already? The short order of things, starting with no starting your engine. The fuel pump starts on many diesels the moment the ignition goes on — and so leave it off. Thinning it with more diesel won't work, since AdBlue sinks to the base rather than blending — and that is where your fuel is sucked from. On a forecourt — the nearest petrol station, another forecourt nearby or another — the attendants will normally help roll your car away, if you ask. Your own driveway in Lurganare is where it stays. If your engine has already run, stop as soon as it is safe then switch off. The next exit is the place to come off when you are on the M77, over 50 miles from Lurganare. Tell us about how far it went: a run towards Newry, under 5 miles away, is a bigger job than a short hop across Lurganare. ## Our arrival around Lurganare, and what occurs next Wherever the car came to rest, whether outside the local primary school, near the centre or at home, our van travels to it. Those answers determine the work and our quote, and so our engineers ask what went in, about how much, and if it has run. During the phone call itself, you are told the quote — before dispatch. Emptying the tank comes next, then a full flush of the system. With AdBlue that counts more than with petrol: it crystallises and is corrosive to some of the metals in a fuel system, and so it doesn't wash out on its own. A test comes at the end: before that, fresh diesel goes in, and the fuel filter is cleaned or replaced as needed. Next our engineers fire it up and confirm it runs smoothly before leaving. Using pumps fine on a working forecourt and quiet enough for use outside a house at night, most jobs where the engine has not run need about half an hour after our technicians arrive. Nothing upfront; you settle up that day. At the end, the VAT invoice and the report from the engineer go to you for the insurer. Wrong-fuel cover is included in plenty of insurance policies — so use the wait to check yours. ## About Lurganare and where it is Lurganare is a locality in County Armagh, situated inland at an elevation of approximately 40 metres, near the city of Newry. Lurganare is characterized by its predominantly detached housing stock, reflecting its residential nature. Lurganare is close to several nearby places, including Mullaghglass, Bessbrook, and Sheeptown, and is located about 3.7 miles from Newry. Lurganare has a population of around 805 people. ## AdBlue drains round Lurganare, and County Armagh beyond Lurganare is a small village, and our vans that cover it also work the towns near it, Bessbrook and Sheeptown among them, across the BT postcode area. Give a postcode that starts BT34 1, and our van gets there quickest. Your car doesn't need to shift. Wherever it sits — near a street just off the centre, on a layby heading to the green space at the edge of the village, at home — that's where it is emptied. Ring and ask rather than assuming if you're close to a boundary, or somewhere hard to explain, like the back of the far end of the built-up part. ## For Lurganare people, the short version Always, the cap; after that, the pour. If AdBlue has gone in your diesel tank regardless, leave the car off and ring 0333 366 0103. Petrol in Diesel empties it where it waits, anywhere around County Armagh.