--- title: Llanion: AdBlue in a Diesel Tank, What Next canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/llanion-pembrokeshire/ location: Llanion county: Pembrokeshire latitude: 51.694450 longitude: -4.933310 service: AdBlue in a Diesel Tank updated: 2026-10-17 --- # Llanion: AdBlue in the Diesel Tank? Find Your Situation One fact counts above all once AdBlue is in a diesel tank, and that is whether your engine has run since. Wherever the car is — Burton Ferry, Llanion — don't run an engine that has not been started yet. Leave your engine and your ignition off and phone 0333 366 0103; it's normally a drain and a thorough flush, done where the vehicle is around Llanion. Already run? Stop once you safely can, then switch everything off. A bigger job, then, but the same opening step. Find the scenario below that matches yours, wherever across Pembrokeshire it happened. ## On a Llanion forecourt with AdBlue in a diesel Imagine it: standing by the pump, holding the nozzle, you spot the filler you took off was not the right one. Anywhere in Llanion, then — Tesco, Asda, or somewhere else nearby. Put simply: there is no better spot exists to discover it. Only the tank holds AdBlue; not one part beyond it has taken any in. Freeing the petrol pump is no reason to run it — and so do not get back in. A few things: a shove into a bay with the staff helping, the receipt kept, and a call to us from where you stand. If it can't be shifted, it can be emptied at the petrol pump: the equipment is explosion-proof and safe on a working forecourt. ## AdBlue in the diesel tank on a Llanion drive? Days had gone by with the dash light on. Bought a bottle, poured it in at home, binned the empty — and only then looked at the cap a second time, too late. Driveways near London Road get it as much as anywhere. The upshot: no miles since leaves this almost equal to spotting it at the petrol pump. Being reluctant to mix, AdBlue settles to the base inside that tank and stays. A night parked changes nothing. Next: keys in the house, and so no one drives your vehicle off first thing. After that, ring. Pembroke Dock or Llanion: wherever your driveway sits, that is where it gets emptied. Our equipment works quiet enough not to disturb the street at night. ## AdBlue in a diesel and already driving around Llanion? Topped up, drove away, and before long your motor was turning roughly, blowing smoke, losing power, or flashing up the dash. Charles Thomas Avenue, perhaps, or the route towards St Davids — a trip of under 25 miles. What it means: the fuel system has pulled the AdBlue in. The injection pump and every injector get it too on a bigger run, after the fuel filter and pipework have it. More miles, more starts: further it goes. Your move: stop somewhere sensible, then turn the engine off. Services further on can wait: from the M4, under 50 miles out of Llanion, use the first junction. Do not restart it to see if it has cleared; it will not have. Phone us and say how far you drove. ## AdBlue in the wrong tank: hire, lease and company cars You have had the car hardly a week. The AdBlue filler is right beside the diesel one, which you did not know, since your own car either has no AdBlue or keeps it somewhere else. Across Pembrokeshire, nobody is safe from it. What it means: the same as the scenarios above, depending on whether it has run, with one more stage. Many hire and company contracts want the owner to approve work on the car. Next: ring the hire company or your fleet manager first, then us — sorting it before we arrive is faster. Hanging on for a reply at the car park outside Pembroke Dock, or near Pembroke Dock Library? Keep the car off throughout. ## Llanion: unsure if it was AdBlue in your diesel tank? At times, "I think so" is all anyone can truthfully say. The bottle is lighter than it should be, there's a faint smell of ammonia around the filler, and you cannot remember which cap you took off. A hurried top-up by the gates of the local primary school, or a visit to a friend in Pennar: either fit. Meaning? Spills around the inlet don't touch your motor at all. A diesel tank with AdBlue in it is another story. Turning on the vehicle will not tell you which, and if there is AdBlue in your tank it will pull it in. Do this: behave as if it got in, and don't start your engine. Ring with the details: we'd rather find a clean tank than drain one after the motor has run. ## The common ground in every Llanion AdBlue drain Whichever situation you are in, the job starts the same way. Wherever the car stands — First and Last's car park, a street beside St. Govan's Shopping Centre, a driveway, a forecourt — the van arrives and we ask for the fluid, the amount, plus whether your engine has been run. Over the phone, before anything else, you are told the quote, and those answers decide the work too. Emptying that tank comes first, then a careful flush — more important after urea than with petrol, because crystals and corrosion won't clear by themselves, no matter how long you wait. The filter is flushed, or replaced where it needs to be; clean diesel goes in; and the car is tested. Where the motor hasn't been started, expect about half an hour on site, for most cases. Our technicians fire it up last. Before we go, it's checked to make sure it runs correctly on new diesel. Permanent damage is very unusual when it is spotted quickly, and the entire job is done where the car is. Nothing is paid upfront, settlement happens on the day, and you get what your insurer wants: an engineer report plus a VAT invoice. Many insurance policies include misfuelling cover, so it is worth checking yours whilst we are on the way. ## About Llanion, briefly Llanion is a coastal suburban area in Pembrokeshire, situated near the town of Pembroke Dock and the historic Pembroke Ferry. Llanion lies at a low elevation of around 9 metres, close to the shores of the Haven waterway. Llanion is characterized by its predominantly terraced housing stock, reflecting its development as a residential area. Llanion is located near the popular tourist destinations of Pembroke and St Davids, yet remains a distinct community within the region. ## AdBlue drains across Pembrokeshire, Llanion included Waterloo and Pembroke Ferry have the identical vans as Llanion, a residential suburb, along with other towns throughout SA postcodes. Giving us a SA72 6 postcode finds you fastest of all. Whether the car is on a lay-by on the way to Pembroke Dock Memorial Park or in a car park in the middle of Llanion, it doesn't need to move. Our technicians drain the vehicle where it sits. Ring and check rather than guess if you're by Compass, on a border, or anywhere awkward to explain. ## Your scenario, summed up Where it hasn't run, ring and leave it that way. Run by now: pull over, switch down, ring 0333 366 0103. Petrol in Diesel handles the rest, within Llanion or anywhere across Pembrokeshire.