--- title: Goosnargh: AdBlue in a Diesel Tank, Explained canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/goosnargh-lancashire/ location: Goosnargh county: Lancashire latitude: 53.825770 longitude: -2.671400 service: AdBlue in a Diesel Tank updated: 2026-10-22 --- # Preventing AdBlue in a Diesel Tank in Goosnargh: Why It Happens If AdBlue is already in your diesel tank, stop reading for a moment: leave your engine and your ignition off and phone 0333 366 0103. Usually, when your engine has not turned, it's emptied and thoroughly cleaned where your car is around Goosnargh. Nothing happened yet? Below, the page covers the why it occurs and the ways to avoid it altogether. ## AdBlue in a diesel vehicle: two tanks, two fillers Plenty of current diesels on the roads around Goosnargh and Haighton Green carry two liquids, not one. Diesel goes to the engine. Kept in a tank of its own, AdBlue is fed into the exhaust stream and cleans it. Each tank has its own filler. Under one flap, side by side: that is the layout on a lot of vehicles. Elsewhere, AdBlue's filler is under the bonnet or in your boot instead. At the petrol pump, your diesel side gets filled constantly. Much less regularly, the AdBlue side gets filled — mostly from a bottle, by someone working out where it goes. Mistakes happen in the gap between them. ## Goosnargh: how AdBlue in the diesel tank occurs Rarely is it carelessness: normally three things coincide. The warning comes first. As AdBlue runs low the vehicle tells you, and if it runs out completely, the car goes into limp mode. So the top-up is done in a hurry: on a driveway off Mill Lane before work, or in the car park outside Grapes Inn on the way home. New-to-you motors are next, as well. Hire cars, new vehicles and company vehicles place their fillers in new places, and habit goes for the cap it used on the old one. And the bottle fits. A bottle with a spout goes into a diesel filler as easily as an AdBlue one, so nothing stops the pour after it has started. Whether it occurs in Cumeragh Village or the middle of Goosnargh, it's the same few seconds. ## How to tell the AdBlue filler from the diesel one Whether a Goosnargh forecourt or a driveway out in Pudding Pie Nook, spend a couple of seconds over these before any goes in. - The cap. The AdBlue cap is often blue, or marked "AdBlue". Your diesel cap usually is not. Read it instead of going by where it sits. - On many motors, the size tells: AdBlue gets the smaller filler neck. - Look inside your fuel flap: many motors carry a label there showing which fuel goes where. - In your boot or under the bonnet: that's where your filler is if it is not by the diesel cap, and the handbook tells you which. - Collecting a hire or company car, say at the car park outside Preston? Ask the person who drove the vehicle last before leaving, rather than when the light goes on. ## How to top up without AdBlue in the diesel tank A routine for the day the light comes on, wherever across Lancashire that is. - Not in a rush on the side of Church Lane, not on a slope, not with the motor running: park then switch off first. - Say "AdBlue" out loud as you unscrew the cap, after finding the AdBlue filler and read it. Daft, perhaps, yet it does the trick. - The diesel cap stays on. Where both sit under a flap, confirm it's closed before the bottle comes up. - Finish once that tank is topped up or the bottle is empty; until then, tip slowly through its built-in spout. - Close the cap and check once more. Make sure your diesel cap was never opened. Only then start your car. Find at the second or third stage that the bottle went into the wrong tank? That is where you stop. Never go on to stage five. ## AdBlue in the diesel tank already, in Goosnargh? What follows is a short order of things, beginning with not starting your engine. The fuel pump runs on plenty of diesels the moment your ignition goes on — so leave it off. Don't top up with diesel to dilute it: AdBlue does not mix with diesel, it sinks to the bottom of your tank, where your fuel is sucked from. Ask the attendants to help roll the car away from the petrol pump if you are on a forecourt — the Asda, the Texaco or anywhere else. Your own drive in Goosnargh is where it should stay. Already started? Stop when it's sensible, then turn off. The next junction is where to come off when you are on the M55, under 3 miles from Goosnargh. Mileage matters — a short hop across Goosnargh makes a smaller job than driving under 5 miles towards Preston — so say about how far it went. ## Our arrival around Goosnargh, and what occurs next The van reaches the car anywhere it has come to rest — your own driveway, beside Obelisk, or outside Goosnargh Oliverson's Church of England Primary School. Both the work and the quote rest on three answers — what liquid, what quantity, and whether it has run — so our technicians ask. The quote comes on the call, ahead of any van leaving. Then your tank is drained and the fuel system rinsed thoroughly. AdBlue crystallises and is corrosive to some of the metals in a fuel system, so it does not wash out on its own — which is why the flush matters more with AdBlue than with petrol. Testing is last: before that, fresh diesel is added, and the filter is cleaned or changed if necessary. Your engine is started next and checked to confirm it runs properly, all before our technicians leave. With pumps safe on a busy forecourt and quiet enough to use outside a house at night, most jobs where the engine hasn't run need roughly half an hour once our technicians are there. No money in advance; you settle up that day. Afterwards, the VAT invoice and the report from the engineer are handed to you for your insurer. Misfuelling cover is part of plenty of insurance policies — and so make use of the wait to check yours. ## About Goosnargh itself Goosnargh is a village in Lancashire, situated inland at an elevation of 67 metres, approximately 4.6 miles from Preston. Goosnargh has a population of around 1171 people, with semi-detached housing being the predominant type. Goosnargh is located near other small villages such as Cumeragh Village, Brook, and Whittingham, and is about 192.4 miles from London. ## AdBlue drains round Goosnargh, and Lancashire beyond Goosnargh is a rural village, and the teams that cover it also work the places around it, Brook and Whittingham among them, across the PR postcode area. A postcode starting PR3 2 gets the van to you fastest. The car does not need to shift. A drive, a lay-by on the way to Goosnargh Village Green, a side street close to Goosnargh Village Hall: our technicians drain the vehicle where it stands. Ring and ask rather than guessing if you are near a boundary, or somewhere hard to describe, like the back of Saint Mary The Virgin. ## For Goosnargh drivers, the short version Always, the cap; after that, the pour. If AdBlue has gone in your diesel tank regardless, leave the car off then call 0333 366 0103. Petrol in Diesel clears it where it stands, anywhere around Lancashire.