--- title: AdBlue in a Diesel Tank Feniscliffe: Explained canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/feniscliffe-lancashire/ location: Feniscliffe county: Lancashire latitude: 53.733610 longitude: -2.518450 service: AdBlue in a Diesel Tank updated: 2026-10-05 --- # Avoiding AdBlue in a Diesel Tank in Feniscliffe: Why It Happens Stop here for a moment if the diesel tank already has AdBlue in it: ignition off, engine off, then call 0333 366 0103. Normally, if your motor hasn't turned, it's emptied and fully purged where your car sits in Feniscliffe. Not happened yet? Below, the rest of the page explains the why it occurs and the how to prevent it altogether. ## Why does AdBlue in a diesel motor need its own filler? Diesel feeds your motor — yet many modern diesels driven round Feniscliffe and Waterloo carry another liquid too. Stored in a tank of its own, AdBlue is fed into the exhaust stream and cleans it. There is a filler on each tank. Many of cars have a single flap for both, while some move the AdBlue filler to your boot or under the bonnet. The diesel side is fuelled at the petrol pump all the time. The AdBlue side is fuelled far less commonly, normally from a bottle, and normally by someone who has to stop and think where it goes. The error lives in that gap. ## How does AdBlue in your diesel tank occur in Feniscliffe? It is seldom carelessness. Three things tend to line up. The warning comes first. As AdBlue runs low your car 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 drive off Cherry Lea before work, or in the car park at The Station on the way home. Then the car is new. A hire car, a new vehicle 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. Lastly, the spout fits: a diesel filler or AdBlue one, it goes in just as easily, and once the tip begins, nothing stops it. It's a few seconds, be it in Cherry Tree or bang in the heart of Feniscliffe. ## How to tell the AdBlue filler from the diesel one Check these first, on a forecourt in Feniscliffe or a driveway out in Witton. A few seconds, no more. - The cap. The AdBlue cap is often blue, or marked "AdBlue". The diesel cap normally is not. Read it instead of going by where it sits. - Many vehicles fit AdBlue the smaller neck of the two. - A label inside your fuel flap frequently says which fuel goes where, on plenty of vehicles. Check for it. - The handbook. If your filler isn't by your diesel cap, it is in the boot or under the bonnet, and the handbook says which. - The person who drove it last. On a hire or company car collected from somewhere like the car park outside Cherry Tree, ask before you leave, not when the light comes on. ## How to top up without AdBlue in the diesel tank For the day the warning comes on — wherever it is in Lancashire — a simple routine to use. - Stop on level, engine off, with time to spare — not rushing on the side of Wood View. - Say "AdBlue" out loud as you unscrew the cap, once you find the AdBlue filler and read it. Daft, perhaps, yet it does the trick. - Leave the diesel cap on. If both sit under one flap, check the diesel cap is still closed before you lift the bottle. - Using the bottle's own spout, tip slowly — and stop when it's full or the bottle is empty. - Before starting the car, close the cap and check a second time that your diesel cap was never opened off. Spot at stage two or three that it has already gone into the diesel side? So stop just there. Step five is off limits. ## Put AdBlue in your diesel tank in Feniscliffe already? Then the order of things is short. Do not start your motor. Don't switch your ignition on; on many diesels that alone runs the fuel pump. AdBlue does not mix with diesel — it sinks to the bottom of that tank, where the fuel is drawn from — so do not top up with diesel to thin it. Ask the attendants to help push the car clear of the petrol pump if you're on a forecourt — the EG On the Move, the Texaco or anywhere else. Leave it where it is if you are on your own drive around Feniscliffe. When the engine has been run already, pull over safely and turn the car off. On the M65, under 3 miles from Feniscliffe, that means the next exit. Tell us roughly how far it went: a run towards Preston, under 10 miles away, is a bigger job than a short hop across Feniscliffe. ## When we arrive in Feniscliffe, what occurs? Our technicians come to the car wherever it has stopped, whether that is outside Livesey Saint Francis' Church of England School, close to St Francis or on your own drive. Those answers decide the work and our quote, and so our technicians ask what went in, about how much, and if it has run. You hear that price by phone, before anybody sets off. Your system is then flushed thoroughly, after your tank is drained. With AdBlue that counts more than with petrol: it crystallises and is corrosive to some of the metals in a fuel system, so it does not wash out on its own. The fuel filter is flushed, or replaced where it needs to be; clean diesel goes in; and the car is tested. We do not leave until it has been fired up and is running properly. If the motor hasn't run, most jobs take about half an hour once we are there, using pumps that are fine on a busy forecourt and quiet enough to use outside a house after dark. Nothing upfront; you settle up on the day. Afterwards, the VAT invoice and the report from the engineer go to you for the insurer. Misfuelling cover is part of many insurance policies — and so make use of the wait to look at yours. ## About Feniscliffe, for a moment Feniscliffe is a suburban area located on the riverside in Lancashire, with a mix of semi-detached housing and a population of around 4184 residents. Feniscliffe sits at an elevation of 107 metres, close to the nearby places of Cherry Tree, Green Lane, and Mill Hill. Feniscliffe is situated near the city of Preston, approximately 7.6 miles away, and is part of the wider North West region. Feniscliffe is also relatively distant from London, at around 183.6 miles away. ## AdBlue drains about Feniscliffe, and Lancashire beyond Feniscliffe is a residential suburb, and the teams that cover it also work the places around it, Green Lane and Mill Hill among them, across the BB postcode area. Fastest of all: quote a BB2 4 postcode to the van. There's no need to move the car. The drain happens on the spot, whether a driveway, a road near Greenfield Communoty Centre, or a lay-by towards Willow Ground Wood. Awkward to pin down, like the back of Cherry Tree Library? Close to a border? Checking beats assuming, and so ring. ## The short version for Feniscliffe drivers Before you pour, read the cap. AdBlue in the diesel tank regardless? Keep the vehicle off and phone 0333 366 0103; Petrol in Diesel drains it where it stands, throughout Lancashire.