--- title: Lucas End: AdBlue in a Diesel Tank, What Next canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/lucas-end-hertfordshire/ location: Lucas End county: Hertfordshire latitude: 51.714590 longitude: -0.083480 service: AdBlue in a Diesel Tank updated: 2026-10-04 --- # AdBlue in the Diesel Tank in Lucas End: What Now? What to do about AdBlue in a diesel tank depends on one thing more than any other: if your engine has been run since it went in. If it has not, keep it that way, whether your car is in Lucas End itself or out in Tolmers. Leave the motor and your ignition off and call 0333 366 0103; it is normally a drain and a thorough flush, done where your car is in Lucas End. Where the engine has run, pull in somewhere safe straight away, then turn the vehicle off. Stage one stays unchanged, even if the job grows. Anywhere in Hertfordshire it took place, one of the cases below fits yours. ## On a Lucas End forecourt with AdBlue in a diesel Imagine it: standing by the pump, holding the nozzle, you spot the cap you opened wasn't the correct one. Somewhere around Lucas End, then — Elliott Motor Company, Shell, or somewhere else close by. Put simply: no better spot exists to spot it. The AdBlue is in your tank and nowhere else. Nothing has drawn it in. What to do: do not get back in and start the vehicle to clear the petrol pump. Phone us from the forecourt once the car is in a bay — the staff will lend a hand to push it — and keep the bottle. Emptying it right at the petrol pump is possible when it can't be shifted, since the equipment is explosion-proof. ## Lucas End, at home: AdBlue in your diesel tank On the dash, a warning had shown for days. A bottle bought at the garage, emptied in on the driveway — and it was only at the recycling that the cap caught your eye. Drives close to Poppy Walk get it as much as anywhere. The point: zero miles since leaves this almost equal to finding it at the petrol pump. Diesel and AdBlue keep separate: the AdBlue settles to the floor of the tank and stays there, however long the night. Your move: the keys in the house, and so no one takes the vehicle anywhere first thing. After that, phone. In Goffs Oak or here in Lucas End, the draining is done at your drive. Even at night, the pumps are quiet enough for a driveway. ## Lucas End: drove off with AdBlue in a diesel? You filled up, set off, and a mile or two later your motor began to run roughly, smoke, lose power or light up the dashboard. Somewhere on St James's Road or on the road towards St Albans — under 15 miles away. Meaning? The fuel pump has sucked the AdBlue up. Distance decides how far it goes: filter and lines to begin with, then the high-pressure pump and each injector. It goes deeper with every mile covered and every restart. What to do: pull over where it's safe and switch off. Exit by the next junction — not the services beyond — if you're on the M25, under 3 miles from Lucas End. It will not have cleared, so there's no sense restarting to find out. Phone us and say how far you travelled. ## AdBlue in the wrong tank of a hire, lease or company car You've had the vehicle barely a week. On your own car, AdBlue is absent or elsewhere. On this one, its inlet is just next to the diesel inlet — a surprise to you. It can happen to anyone, anywhere around Hertfordshire. Meaning? Whichever applies above applies too — run or not — plus one further step. Work on your vehicle often requires the owner's go-ahead under hire or fleet terms. What to do: ring the hire firm or your fleet manager first, then us. That's quicker settled before our engineers get there than after. Hanging on for a reply at the car park at Cuffley, or beside St James? Leave the engine off throughout. ## Lucas End: unsure if it was AdBlue in your diesel tank? At times, "I think so" is the most you can honestly say. The bottle is lighter than it should be, there's a faint smell of ammonia round your filler, and you cannot remember which cap you took off. The gates of Goffs Oak Primary & Nursery School in a rush, say, or a friend's drive over in Cuffley. The point: your motor is not hurt by a little AdBlue spilled on the filler. AdBlue inside your diesel tank does. Turning on your car will not tell you which, and if there is AdBlue in the tank it will draw it in. Next: act as though it got in, and keep the motor off. Inspecting a tank that proves clean is better than emptying one after it has been run — so phone then tell us what you saw. ## The common ground in each Lucas End AdBlue drain The job opens identically, whichever your case. Our engineers come to the vehicle, whether it's on a forecourt, a drive, the car park at Goff's Oak or a side street near Goffs Oak Methodist Church, and ask three things: what was put in, about how much, and if the motor has run. Answers shape the job; the quote comes by phone whilst nobody has left yet. Emptying that tank comes first, followed by a careful flush — more important after urea than after petrol, since crystals and corrosion will not go on their own, however long it sits. Then is the fuel filter — flushed, or swapped where necessary — followed by fresh diesel, and a test of the vehicle. Never started? Then roughly half an hour on site covers most jobs. Lastly, our technicians fire it up. Our engineers make sure it runs correctly on fresh diesel before leaving. Permanent damage is very unusual if it is spotted soon, and the entire job is done where the car is. For your insurer: an engineer's report and the VAT invoice. For you: payment on the day, no money in advance. Many insurance policies include misfuelling, and so look at yours as we head over. ## About Lucas End Lucas End is a locality situated on the riverside in Hertfordshire, with an elevation of around 77 metres. Lucas End lies approximately 14.4 miles from London and 11.2 miles from the nearest city, St Albans. Lucas End is characterised by its predominantly detached housing stock and is located near other localities such as Goffs Oak and Hammond Street. Lucas End has a population of around 958 residents. ## AdBlue drains about Lucas End and across Hertfordshire Being a small village, Lucas End has the same vans as the nearby places — Rosedale, Hammond Street — right across EN postcodes. The location is clearest from a postcode beginning EN7 6. No moving is required, be it parked in the centre of Lucas End or in a lay-by heading to Hammondstreet Road Playing Fields, and so keep it put. Our engineers drain the car where it sits. Tricky to pin down? By Goffs Oak War Memorial or a border? Checking beats guessing, and so ring. ## In one line: your scenario Still unrun? Leave the car off then ring. Run already? Pull over, switch off, phone. Petrol in Diesel handles the rest whichever it is, in Lucas End and Hertfordshire, on 0333 366 0103.