--- title: Wensley Fold: AdBlue in a Diesel Tank, Explained canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/wensley-fold-lancashire/ location: Wensley Fold county: Lancashire latitude: 53.745230 longitude: -2.499960 service: AdBlue in a Diesel Tank updated: 2026-10-08 --- # AdBlue in a Diesel Tank in Wensley Fold: Why It Happens and How to Avoid It Leave the motor and ignition off then phone 0333 366 0103 first — reading can wait if AdBlue is already in your diesel tank. A drain and a thorough flush, carried out just where the car sits in Wensley Fold, is usually what it needs when caught before the engine runs. Nothing happened yet? Further down, the page explains the why it occurs and the ways to avoid it altogether. ## AdBlue in a diesel car, and its separate tank Not one fluid but two: that is how plenty of modern diesels near Wensley Fold and Hollin Bank run, with diesel feeding your engine. AdBlue goes to the exhaust, where it is sprayed into the gas to fresh it, and it lives in a tank of its own. Each tank has its own filler. On a lot of motors the two sit side by side under the same flap; on others the AdBlue filler is in the boot or under the bonnet. Diesel gets filled on each forecourt visit, again and again. Far less commonly, the AdBlue side gets filled — normally from a bottle, by a person thinking about where it goes. It's in that gap that the slip lives. ## How AdBlue in your diesel tank takes place around Wensley Fold Seldom is it carelessness: normally three things line up. Hurry comes from the warning. The vehicle tells you as AdBlue runs low, and an empty tank sends the vehicle into limp mode — so the top-up gets done quickly, before work on a drive off Apple Street, or on the way home in the car park at The Lion. The old car's filler is where the hand reaches — yet a hire car, a new car or a company car puts the fillers elsewhere. That's the second thing: a new motor. And the bottle fits. A bottle with a spout goes into a diesel filler as easily as an AdBlue one, and so nothing stops the tip after it has started. It takes a few seconds, be it in Bank Top or bang in the heart of Wensley Fold. ## Which filler is for AdBlue, and which for diesel? Be it a Wensley Fold forecourt or a driveway out in Nova Scotia, spend a few seconds over these before anything is poured in. - The cap. The AdBlue cap is regularly blue, or marked "AdBlue". Your diesel cap normally is not. Read it rather than going by where it sits. - Many vehicles give AdBlue the smaller filler of the two. - Open the flap and look for a label — many cars mark which belongs in which filler just there. - The handbook. If your filler is not by your diesel cap, it's in the boot or under the bonnet, and the handbook says which. - The previous driver will know. Check when you collect a rental or company car — at Mill Hill (Lancs)'s car park, say — not once the warning comes on. ## Topping up AdBlue without it reaching the diesel tank Anywhere around Lancashire the light comes on, here is a routine for that day. - Not in a rush on the side of Apple Close, not on a slope, not with your engine running: park then switch off properly. - Find the AdBlue filler and read the cap. Say "AdBlue" out loud as you unscrew it. It sounds daft and it does the trick. - The two behind one flap? Then make sure the lid on the diesel side stays shut before lifting the bottle. - Pour slowly, using the bottle's own spout. Stop when it is full or when the bottle is empty. - Close the cap and check once more. Make sure your diesel cap was never opened. Only then start the car. If at step two or three you find you have already poured into the diesel side, stop there. Stage five stays off limits. ## Put AdBlue in the diesel tank around Wensley Fold already? Brief list, then. Top of that: your engine stays unstarted. On many diesels the ignition alone runs the fuel pump, so don't switch the vehicle on. Don't top up with diesel to thin it: AdBlue does not mix with diesel, it sinks to the bottom of the tank, where your fuel is sucked from. If you are on a forecourt, whether it is the Shell or the EG On the Move, ask the attendants to help push your car away from the petrol pump. Your own drive around Wensley Fold is the place it should stay. Already run? Stop when it's safe, then turn off. On the M65, under 3 miles from Wensley Fold, that means the next junction. Tell us about how far it went: a run towards Preston, under 10 miles away, is a bigger job than a short hop across Wensley Fold. ## When our technicians arrive in Wensley Fold, what takes place? The van reaches the vehicle anywhere it has come to rest — your own drive, near Baitul Rasheed, or by St Barnabas and St Paul's Church of England Voluntary Aided Primary School. We ask what was put in, about how much, and if it has run, since those replies settle the work and our quote. Nobody heads out before you have heard our quote by phone. After that: draining, then a thorough flush of the entire system. AdBlue crystallises and is corrosive to some of the metals in a fuel system, and so it doesn't wash out on its own — which is why the flush counts more with AdBlue than with petrol. Testing is at the end: before that, clean diesel is added, and the fuel filter is cleaned or changed if necessary. Before we go, our engineers start the car and confirm that it is running smoothly. With pumps fine on a busy forecourt and quiet enough for use outside a house at night, most jobs where the engine hasn't run need roughly half an hour once our engineers are there. Your insurer usually wants an engineer's report and your VAT invoice, and both are yours once this job is done. Payment comes on the day, with no money upfront. Plenty of insurance policies include misfuelling cover, so it's worth checking yours while we are on the way. ## About Wensley Fold, briefly Wensley Fold is a suburban area in Lancashire, situated near the River Ribble and characterised by its terraced housing. Wensley Fold sits at an elevation of around 110 metres, with nearby neighbourhoods including Bank Top and Witton. Wensley Fold is located close to Preston, which is approximately 8 miles away, and is part of the larger North West England region. Wensley Fold has a population of around 10355 people, making it a sizable residential community. ## AdBlue drains across Lancashire, Wensley Fold included Wensley Fold is a residential suburb, and the vans that cover it also work the places near it, The Wrangling and Witton among them, across the BB postcode area. Give a postcode that starts BB2 1, and the van arrives fastest. Moving the vehicle is not needed. Draining happens on the spot, be it a drive, a road by St. Luke with St. Philip, or a lay-by towards Griffin Park. Assuming doesn't help at the back of Bethesda, close to a boundary, or somewhere awkward to pin down; phone and check. ## The short version for Wensley Fold motorists Before you pour, read the cap. Petrol in Diesel drains it on the spot, anywhere across Lancashire, if AdBlue has gone in your diesel tank anyway — so leave it off and call 0333 366 0103.