--- title: What Now? AdBlue in a Diesel Tank Segensworth canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/segensworth-hampshire/ location: Segensworth county: Hampshire latitude: 50.867480 longitude: -1.252990 service: AdBlue in a Diesel Tank updated: 2026-10-07 --- # AdBlue in the Diesel Tank in Segensworth: What Now? One thing matters most once AdBlue is in a diesel tank, and that is if your engine has run afterwards. Wherever your vehicle is — Whiteley, Segensworth — don't start a motor that has not been started yet. Ring 0333 366 0103 with your ignition and motor both off. In Segensworth, such a case is generally drained and cleaned where it stands. If it's run, stop as soon as it is safe then switch off. A bigger job, then, but the same opening step. Wherever around Hampshire it took place, one of the cases below matches yours. ## AdBlue in a diesel on a Segensworth forecourt Imagine it: standing by the pump, holding the bottle, you spot the cap you took off was not the right one. Be it BP, Esso or anywhere else in Segensworth, the situation is identical. What it means: this is the best location to find out. Still inside the tank, with nothing drawn onwards: that is where the AdBlue is. Freeing the pump is no reason to start it — and so don't get back in. Ask the attendants to help you push your car into a parking space, keep your receipt or the bottle, and phone us from the forecourt. If it cannot be moved, it can be emptied at the petrol pump: the equipment is explosion-proof and fine on a busy forecourt. ## At home around Segensworth with AdBlue in your diesel tank On the dash, a warning had shown all week. Picked up a bottle, tipped it in outside the house, binned the empty — and only then checked the cap a second time, too late. It occurs on driveways just off Segensworth Road as frequently as anywhere. What it means: if you haven't driven since, this is almost as good as the forecourt. AdBlue does not mix with diesel; it sinks to the bottom of that tank and waits there. Overnight doesn't change that. Next: keys indoors, so nobody drives the vehicle off at breakfast. After that, ring. We drain it on your drive, whether that is around Segensworth or out in Titchfield Park. The pumps are quiet enough to use outside a house at night. ## On the road in Segensworth with AdBlue in a diesel Filled up, pulled away, and before long the engine was turning roughly, smoking, losing power, or lighting up your dash. Perhaps it was on Ticcan Drive, possibly on the way out towards Southampton, under 10 miles away. In short: the AdBlue has been sucked into your fuel system. The high-pressure pump and every injector get it too on a bigger run, once the filter and lines have had it. Every restart, like each mile, pushes it on. Next: find a safe place, stop, then turn the engine off. Exit by the next junction — not the services further along — if you are on the M27, under a mile from Segensworth. No test starts: clearing itself isn't something AdBlue does. Ring us and say how far you travelled. ## Hire, lease or company car with AdBlue in the wrong tank It is a car you have had for a week. On your own vehicle, AdBlue is absent or elsewhere. On this one, the cap is just by your diesel inlet — a surprise to you. Any driver, wherever across Hampshire, might do it. The point: exactly as above, split by if it ran, but with an added stage. The owner often needs to approve any work, under many rental and fleet contracts. Your move: hire firm or fleet manager first, us second, because sorting it early saves time. Stuck by St John or at Swanwick till the firm answers, the car stays switched off the whole time. ## Unsure about AdBlue in your diesel tank in Segensworth? "I think so" is sometimes as honest as it gets. A slight ammonia whiff lingers around your filler, the bottle feels too light, and the cap you took off is a blur. The gates of Cornerstone CofE (VA) Primary School in a rush, say, or a friend's drive over in Titchfield Common. In short: spillage near the filler leaves your motor no harm. In the diesel tank, by contrast, AdBlue harms it. Firing up the vehicle cannot tell you which, and if there is AdBlue in the tank it will suck it in. What to do: treat it as if it went in. Don't crank it. Ring us and explain what you saw; we'd rather check a tank that turns out clean than drain one that has already been run. ## What every AdBlue drain in Segensworth has in common The job begins the same way, whatever the case. Three questions come once our engineers arrive — on a forecourt, a driveway, a road by Duncan Road Church or the car park outside The Talisman: the liquid, the quantity, and if the motor has run. Answers shape the work; the quote comes by phone whilst nobody has left yet. AdBlue crystallises and eats at certain metals used in fuel systems, and so it won't rinse out unaided; that's why the flush, after this drain, counts far more with AdBlue than with petrol. Next is the fuel filter — cleaned, or swapped where needed — then clean diesel, and a test of your car. Never started? Then roughly half an hour once we are there covers most jobs. Finally, our engineers start it. With fresh diesel in, it runs while we confirm it is running properly, and then we leave. Long-term damage is very unusual if it's spotted quickly, and the entire job is done where the vehicle is. Payment comes that day, never in advance. For your insurer, you get a VAT invoice plus a report from the engineer. Worth remembering: many insurers offer misfuelling cover, so a quick look at your documents as you wait pays. ## About Segensworth and where it is Segensworth is a small village in Hampshire, situated near the coast and approximately 7 miles from Southampton. Segensworth has a population of around 1135 people and is characterised by predominantly detached housing. Segensworth sits at an elevation of 41 metres, close to nearby places such as Titchfield Park and Locks Heath. Segensworth is also within commuting distance of London, being around 65 miles from the capital. ## AdBlue drains around Segensworth and across Hampshire Over PO postcodes, the teams covering Segensworth — a coastal village — work nearby towns too, Park Gate and Locks Heath included. Telling us your PO15 5 postcode pins you quickest of all. Parked en route to Locks Heath Recreation Ground, or right in the heart of Segensworth, the vehicle remains where it is — there is no need to move it anywhere. Draining happens on the spot. Awkward to explain? By Saint Margaret Mary or a border? Checking beats guessing, so ring. ## Your scenario, in one line Where it hasn't started, phone then keep it off. Run by now: pull over, power down, phone 0333 366 0103. Petrol in Diesel takes over the rest, in Segensworth or wherever across Hampshire.