--- title: Barnoldswick: AdBlue in a Diesel Tank, Explained canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/barnoldswick-lancashire/ location: Barnoldswick county: Lancashire latitude: 53.916540 longitude: -2.188050 service: AdBlue in a Diesel Tank updated: 2026-10-25 --- # Preventing AdBlue in a Diesel Tank in Barnoldswick: Why It Occurs Pause here a minute when the diesel tank already has AdBlue in it: ignition off, engine off, then call 0333 366 0103. A drain plus a thorough flush, carried out just where your car sits around Barnoldswick, is normally what it needs if found before your motor runs. Reading before the event? In that case what follows covers how it comes about and how to prevent it ever happening. ## AdBlue in a diesel vehicle: two tanks, two fillers Diesel goes to the motor — yet plenty of modern diesels driven about Barnoldswick and Town Head hold another liquid too. AdBlue's own tank holds it, and from there it is sent to the exhaust, and there a spray cleans the fumes. There is a filler for each tank. Many of vehicles share a single flap for both, while others move the AdBlue filler to your boot or under the bonnet. Diesel goes in at every filling station call-out, week in, week out. A driver who has to stop and work out where it goes normally tops up the AdBlue side, from a bottle, and far less regularly. That gap is where the slip lives. ## Barnoldswick: how AdBlue in your diesel tank happens Carelessness seldom explains it. What does is three things lining up together. The warning comes first. As AdBlue runs low the car tells you, and if it runs out completely, the car drops into limp mode. So the top-up is done in a hurry: on a driveway off Skipton Road before work, or in the car park at The Barlick Tap Ale House on the way home. Then your car is strange. A hire car, a new car or a company car puts the fillers where your last one didn't, and the hand reaches for the cap it would have used on the old one. A spout-topped bottle finds no resistance at a diesel filler no more than at an AdBlue one. And so the pour, after started, carries on. Croft or the middle of Barnoldswick: it takes the same few seconds in both. ## Which filler is for AdBlue, and which for diesel? Before you pour anything, whether on a driveway in Coates or a forecourt in Barnoldswick, check these. They take a few seconds. - Blue and lettering: an AdBlue cap is regularly blue, or says "AdBlue", where a diesel cap normally does not. Go by the cap, not where it sits. - On many cars, size tells: AdBlue gets the smaller filler neck. - Open the filler flap and look for a label — many vehicles mark which goes in each inlet right there. - In the boot or under the bonnet: that is where your filler sits if it's not by your diesel cap, and the handbook says which. - The person who drove the car last. On a hire or company car picked up from somewhere like the car park outside Colne, ask before you leave, not when the light comes on. ## How to top up without AdBlue in your diesel tank Anywhere around Lancashire the light comes on, this is a routine for the day. - Pull in somewhere level, motor off, with time in hand — not hurried on the side of St James' Road. - Say "AdBlue" out loud as you unscrew the cap, after finding the AdBlue filler and read it. Silly, perhaps, yet it works. - Both behind a single flap? Then make sure the cap on the diesel side stays shut ahead of lifting the bottle. - Slowly is best, through the bottle's own spout, until it's full or the bottle runs out. - Only after that, start the car: close the cap, check again, and make sure your diesel cap was never opened. Discover during the second or third step that AdBlue went in the wrong tank? That's where you stop. Skip step five entirely. ## Put AdBlue in your diesel tank in Barnoldswick already? Brief order, then. First: the motor stays unstarted. On many diesels the ignition alone runs the fuel pump, and so don't switch it on. Don't top up with diesel to dilute it: AdBlue doesn't mix with diesel, it sinks to the bottom of the tank, where the fuel is sucked from. At a forecourt — Shell, Texaco or another — the attendants will usually help roll the vehicle away, when you ask. Your own driveway around Barnoldswick is the place it should stay. Stop as soon as it is safe and switch off, if your motor has already run. Barnoldswick sits under 5 miles from the M65; there, use the next exit. Roughly how far did it go? Crossing Barnoldswick is less a job than a run of under 25 miles to Bradford, so tell us. ## When we arrive in Barnoldswick, what happens? We come to the car wherever it has stopped, whether that's outside Gisburn Road Community Primary School, near Barnoldswick Civic Hall or on your own drive. The answers settle this work and the price, and so our technicians ask what was put in, about how much, and whether it's run. You hear that quote on the phone, before anyone heads out. Then the tank is cleared and your system rinsed thoroughly. More than with petrol, it counts with AdBlue: the crystals build up, certain metals corrode, and nothing washes away unaided, no matter how long it sits. A test is at the end: before that, fresh diesel is added, and your filter is flushed or changed if necessary. Your engine is fired up next and checked to make sure it runs smoothly, all before our technicians head off. If the engine has not run, most jobs take about half an hour once we're there, using pumps that are fine on a working forecourt and quiet enough to use outside a house at night. No money in advance; you settle up on the day. Afterwards, the VAT invoice and a report from the engineer go to you for your insurer. It is worth checking your policy while we travel to you: misfuelling cover comes with many policies. ## About Barnoldswick Barnoldswick is a town situated in the north of Lancashire, on the banks of the River Calder and the Leeds-Liverpool Canal. Barnoldswick has a mix of terraced housing and other types, reflecting its history of industrial and residential development. Barnoldswick sits at an elevation of around 166 metres, near the edge of the Yorkshire Dales National Park. Barnoldswick is located near other small communities such as Croft and Long Ing, and is within commuting distance of larger cities like Bradford. ## AdBlue drains in Barnoldswick and across Lancashire As a riverside town, Barnoldswick has the same vans as nearby places — Wapping, Long Ing — all the way through BB postcodes and the wider area beyond. The van reaches you fastest with a postcode starting BB18 5. Moving the car isn't needed. We drain it where it is — a side street near Holy Trinity Parish Church, a lay-by on the way to Valley Gardens, a driveway. If you're close to a border, or somewhere hard to describe like the back of Majestic Church Centre, ring and ask rather than guessing. ## For Barnoldswick motorists, the short version Pour no AdBlue until you have read the cap. Petrol in Diesel empties it where it stands, anywhere around Lancashire, if AdBlue has gone in your diesel tank regardless — so leave the car off and phone 0333 366 0103.