--- title: Fforest: AdBlue in a Diesel Tank, What Next canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/fforest-carmarthenshire/ location: Fforest county: Carmarthenshire latitude: 51.721380 longitude: -4.054270 service: AdBlue in a Diesel Tank updated: 2026-10-21 --- # AdBlue in the Diesel Tank in Fforest, and What to Do Next One thing matters above all once AdBlue is in a diesel tank, and that is whether the engine has been started since. Wherever the car stands — Talyclun, Fforest — never start an engine that hasn't been started yet. Call 0333 366 0103 with your ignition and engine both off. In Fforest, such a case is typically emptied and flushed where it stands. Stop the moment you safely can then turn off, if it has already run. A larger job, then, but the identical first step. Anywhere in Carmarthenshire it took place, one of the situations below fits yours. ## AdBlue in a diesel on a Fforest forecourt Imagine it: stood by the pump, holding the nozzle, you realise the filler you took off wasn't the right one. Anywhere around Fforest, then — Shell, Tesco, or somewhere else nearby. What it means: this is the ideal spot to find out. No pump has pulled it in, so the AdBlue sits just in that tank. Next: avoid the urge to start it only to move away from the pump. Ring us from the forecourt once your vehicle is in a bay — the staff will help roll it — then save the bottle. Can't move the vehicle by the pump? Our explosion-proof equipment keeps a busy forecourt sensible, and so we can drain the vehicle where it is. ## AdBlue in the diesel tank on a Fforest drive? On your dash, a warning had shown for days. Only by the recycling, the empty bottle in your hand, did you glance back at the cap you had opened on the drive. Drives close to Llanedi Road see it as much as any other street. The upshot: no miles since leaves this almost as good to spotting it at the pump. Diesel and AdBlue stay separate: the AdBlue settles to the base of your tank and remains there, however long the night. Keep the keys in the house tonight — or a person might take it away first thing — then phone us. Hendy or Fforest: wherever your driveway is, that's where it is cleared. Our equipment runs quietly enough not to disturb the neighbours at night. ## Set off with AdBlue in a diesel in Fforest? Lumpy running, smoke, lost power or a lit dashboard started a short way after the top-up. Somewhere along Carmarthen Road or else heading to Swansea — under 10 miles away. Meaning? Your fuel pump has taken the AdBlue in. The high-pressure pump and each injector see it as well on a longer trip, after the fuel filter and lines have it. More driving, more starts: deeper it travels. Do this: pull up somewhere sensible, then turn the engine off. On the M4, under a mile from Fforest, that means the next exit, not the services further on. No trial starts: clearing itself isn't something AdBlue will do. Phone, saying what distance your vehicle was driven. ## A hire or company car with AdBlue in the wrong tank? You've only had this car for days. Your own car either does without AdBlue or keeps it elsewhere, and so nothing warned you the AdBlue inlet sits right beside the diesel. Any driver, wherever across Carmarthenshire, might make the same. The point: exactly as above, divided by whether it ran, but with one added step. Many hire and company agreements need the owner's sign-off before work. What to do: call the hire firm or your fleet manager first, then us. That's faster settled before our technicians arrive than after. Waiting for an answer at the car park at Pontarddulais, or beside Pontarddulais War Memorial? Keep your car off meanwhile. ## Fforest: unsure whether it was AdBlue in the diesel tank? "I think so" is often as honest answer there is. Which cap came off, you cannot say; meanwhile the bottle feels less than it ought to, and a whiff of ammonia hangs by your filler. Maybe it happened in a hurry at the school gates at the local primary school, or on a friend's drive in Pentrebach. In short: spillage near the filler leaves your engine unharmed. Once it's inside the diesel tank, though, that changes. You can't tell which by turning the ignition, and doing so would draw in any AdBlue that is in the tank. Your move: act as if it did, and don't start your motor. Ring us and explain what you saw; we would rather check a tank that turns out clean than drain one that has already been run. ## Fforest: what every AdBlue drain has in common Each case gets the same start to the work. Anywhere your car stands — Bird in Hand's car park, a street beside St. Michael's, a drive, a forecourt — the van arrives and we ask about the fluid, the quantity, plus whether the engine has been run. Those answers decide the work, and you hear the quote on the phone, before anybody sets off. Emptying that tank comes next, followed by a careful flush — more important after urea than after petrol, since crystals and corrosion will not go by themselves, however long you wait. Last come the fuel filter, flushed or replaced if necessary; fresh diesel; and a test of the car. The majority of unstarted cars are a half-hour job after the moment we get there. Starting the engine comes last. With new diesel in, it runs while our engineers check it is running correctly, and then we go. We do the whole job where your car is, and long-term damage is very uncommon when it has been spotted soon. Paying is on the day, never in advance. For your insurer, you get a VAT invoice and a report from the engineer. Plenty of policies cover misfuelling, so look at yours as we head over. ## About Fforest Fforest is a village in Carmarthenshire, situated on the banks of a river at an elevation of 64 metres. Fforest lies near the towns of Hendy, Pontarddulais, and Sardis, and is approximately 8.5 miles from Swansea. Fforest has a population of around 1330 people, predominantly living in detached houses. Fforest is located in a scenic area, with the city of Swansea and its amenities within easy reach. ## AdBlue drains around Fforest and across Carmarthenshire Fforest is a village, and the same teams that cover it work the towns around it too, Pontarddulais and Sardis among them, across the SA postcode area. Telling us your SA4 0 postcode finds you fastest of all. Whether the car is on a lay-by on the way to Fforest Park or in a car park in the middle of Fforest, it does not need to move. Draining happens on the spot. Awkward to explain? By Carmel or a border? Asking beats guessing, and so phone. ## Your situation, in one line Not run yet: keep the car off and call. Whichever case applies, Petrol in Diesel takes over the rest on 0333 366 0103, throughout Carmarthenshire and in Fforest — after you pull over, turn off and ring, if it has run.