--- title: AdBlue in a Diesel Tank Tacolneston? Read This canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/tacolneston-norfolk/ location: Tacolneston county: Norfolk latitude: 52.505410 longitude: 1.154140 service: AdBlue in a Diesel Tank updated: 2026-10-27 --- # Preventing AdBlue in a Diesel Tank in Tacolneston: Why It Occurs If AdBlue is already in your diesel tank, stop reading for a moment: leave your engine and your ignition off then call 0333 366 0103. Around Tacolneston, catching it before the engine turns usually means a drain and a full flush on the spot. If you are reading before it has happened, the rest of this page is about why it happens and how to make sure it doesn't. ## AdBlue in a diesel motor: two tanks, two fillers Diesel feeds your engine — yet plenty of modern diesels driven round Tacolneston and Fundenhall Street carry a second liquid as well. AdBlue goes to your 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. Many of cars have a single flap for the two, whereas some move the AdBlue filler to your boot or under the bonnet. Filling the diesel side at the petrol pump goes on all the time. Seldom topped up, AdBlue normally goes in out of a bottle, poured by a driver who must stop and think what filler to use. It is in that gap that the error happens. ## Tacolneston: how AdBlue in your diesel tank takes place It's hardly ever carelessness. Three things tend to line up. On a driveway off Norwich Road before work, or in the car park outside The Jolly Farmers on the way home: that is where the rushed top-up happens. What is the reason for the rush? As AdBlue gets low your car tells you, and once it is gone, limp mode kicks in. Next, the hand goes for the cap it knew on the old car — because a rental car, a new motor or a company car places the fillers somewhere your last one did not. Lastly, the spout fits: a diesel filler or AdBlue filler, it goes in just as readily, and once the pour begins, no part stops it. The same few seconds settle it, in the middle of Tacolneston or out in Forncett End. ## How to tell the AdBlue filler from the diesel one Be it a Tacolneston forecourt or a driveway out in Brocks Watering, spend a couple of seconds over these before anything goes in. - Check the cap rather than going by where it sits: AdBlue ones are often blue or marked "AdBlue", and diesel caps normally are not. - Check the size: the smaller filler neck is, on plenty of vehicles, the AdBlue one. - Lift the filler flap and look for a label — plenty of vehicles mark which goes in which filler just there. - The handbook shows where it lives when the filler is not next to your diesel cap: the boot, or under the bonnet. - The previous driver knows. Check as you pick up a hire car or fleet car — at Spooner Row's car park, perhaps — not when the light comes on. ## Topping up AdBlue without it reaching the diesel tank A routine for the day the light comes on, wherever across Norfolk that is. - Not in a rush on the side of West Way, not on a slope, not with your engine running: park then switch off properly. - Say "AdBlue" out loud as you unscrew the cap, after you find the AdBlue filler and read it. Silly, yes, but it works. - Leave the diesel cap on. If both sit under one flap, check your diesel cap is still closed before you lift the bottle. - Slowly does it, through the bottle's own spout, until it is full or the bottle runs out. - Close the cap and check again. Make sure the 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. Step five is off limits. ## AdBlue in your diesel tank already, around Tacolneston? Then the order of things is short. Do not start the engine. The fuel pump starts on plenty of diesels the moment the ignition is switched on — and so keep it off. Thinning it with extra diesel fails, since AdBlue sinks to the base instead of mixing — and that is where the fuel is pulled from. Ask the attendants to help roll the car away from the petrol pump if you are on a forecourt — the Anglo, the Shell or somewhere else. If you're on your own driveway in Tacolneston, leave the vehicle where it is. Stop as soon as it is safe then switch off, if the engine has already run. The next exit means the place to leave when you are on the M11, under 50 miles from Tacolneston. Mileage counts — a quick hop across Tacolneston is a smaller job than heading under 15 miles to Norwich — so say roughly how far it went. ## Our arrival around Tacolneston, and what takes place next Anywhere the vehicle came to rest, be it by Tacolneston Church of England Primary Academy, beside Tacolneston Village Hall or at home, the van comes to it. Those replies determine the work and the price, and so our engineers ask what was put in, roughly how much, and if it has run. The price is given on the call, before any van leaves. Your system is then rinsed thoroughly, once the tank is drained. Unlike petrol, AdBlue forms crystals and attacks some fuel-system metals, and neither washes out by itself. That is why it counts more. Testing comes last: before that, fresh diesel is added, and the fuel filter is cleaned or changed as needed. Your engine is fired up next and tested to make sure it runs smoothly, all before our technicians go. Unrun cars usually need a half-hour job from the moment we arrive. The kit is safe on a busy filling station, and quiet enough for a residential street late at night. You pay on the day, with nothing upfront, and get a VAT invoice and an engineer report for your insurer. Before we get there, take a look at your insurance documents; plenty include cover for misfuelling. ## About Tacolneston, briefly Tacolneston is a rural village in Norfolk, situated approximately 10 miles south of Norwich, and is characterized by its detached housing and quiet surroundings. Tacolneston sits in a relatively flat area of the county, with an elevation of around 62 metres, and is close to nearby villages such as Forncett End and Cordwell. Tacolneston has a population of around 792 residents, who live in a mix of old and new properties, including many detached homes. Tacolneston is located about 87 miles from London, making it a peaceful retreat from the city. ## Tacolneston and Norfolk: AdBlue drains across the area Tacolneston is a rural village, and the vans that cover it also work the towns around it, Cordwell and Little Green among them, across the NR postcode area. Fastest of all: give a NR16 1 postcode to our van. The vehicle remains where it is. Our engineers drain it where it is — a side street close to Saint Edmund's Church, a lay-by on the way to Highpark Wood, a driveway. Tricky to pin down, like the back of Tacolneston Guidepost and Village Sign? Close to a border? Asking beats assuming, so phone. ## In short, for Tacolneston drivers Pour nothing until you have read the cap. Petrol in Diesel drains it on the spot, anywhere in Norfolk, if AdBlue has gone in your diesel tank anyway — so leave it off then call 0333 366 0103.