--- title: Explained: AdBlue in a Diesel Tank Bishops Hull canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/bishops-hull-somerset/ location: Bishops Hull county: Somerset latitude: 51.015970 longitude: -3.131310 service: AdBlue in a Diesel Tank updated: 2026-10-25 --- # Preventing AdBlue in a Diesel Tank in Bishops Hull: Why It Happens Pause reading a minute when your diesel tank already holds AdBlue in it: ignition off, motor off, and phone 0333 366 0103. In Bishops Hull, finding it before the engine turns normally leaves draining and a thorough flush where it stands. If you're reading before it has happened, the rest of this page is about why it takes place and how to make sure it doesn't. ## Why does AdBlue in a diesel car need its own filler? Many modern diesels in Tangier, like those in Bishops Hull, run on two liquids; your engine takes only your diesel. Its own tank keeps it, and from there it is sent to the exhaust, and there spraying treats the fumes. Each tank has its own filler. Some motors keep the AdBlue filler in your boot or under the bonnet; a lot of others have both side by side behind one flap. Diesel goes in on each forecourt call-out, week in, week out. Someone who has to stop and work out where it goes normally tops up the AdBlue side, from a bottle, and much less commonly. That gap is where the error lives. ## AdBlue in the diesel tank in Bishops Hull: how it occurs Three things tend to line up, and carelessness is seldom one of them. Hurry follows from the warning. The car warns you as AdBlue runs low, and an empty tank puts the vehicle into limp mode — so the top-up happens in a rush, before work on a driveway off Haydon Close, or on the way home in the car park at The Old Inn. Then the car is unfamiliar. A hire car, a new vehicle or a company car puts the fillers where your last one did not, and the hand gets to for the cap it would have used on the old one. A spouted bottle finds no resistance at a diesel filler any more than at an AdBlue one. And so the pour, after begun, keeps on. Whether it takes place in Galmington or the middle of Bishops Hull, it's the same few seconds. ## How to tell the AdBlue filler from the diesel one A few seconds is all these take — so run through them before you pour anything, on a drive in Comeytrowe or a forecourt in Bishops Hull. - Read the cap instead of going by where it sits: AdBlue caps are commonly blue or marked "AdBlue", and diesel ones usually aren't. - On plenty of cars, size tells: AdBlue gets the smaller filler neck. - The flap. Look inside your fuel flap for a label. Plenty of cars say there which fuel goes where. - The handbook. If the filler is not by the diesel cap, it's in the boot or under the bonnet, and the handbook says which. - Check with the person who drove it last — before you leave, not when the light comes on — when you collect a hire or company car from somewhere like the car park outside Taunton. ## Topping up AdBlue without it reaching the diesel tank For the day the light appears — anywhere it is in Somerset — a simple routine to use. - Pull in somewhere level, engine off, with time to spare — never hurried on the side of Bishops Hull Hill. - Silly as it sounds, speaking "AdBlue" out loud as you unscrew the cap does the trick — once you have located your filler and read the cap. - Leave the diesel cap on. If both sit under one flap, check the diesel cap is still closed before you lift the bottle. - Pour slowly, using the bottle's own spout. Stop when it's full or when the bottle is empty. - Only then, start the vehicle: close the cap, check again, and make sure the diesel cap was never opened. Spot at stage two or three that it has already gone into the diesel side? Then stop just there. Stage five is off limits. ## AdBlue in the diesel tank already, around Bishops Hull? Don't start your engine: that is where the short order of things starts. Leave your ignition off as well, since on many diesels it by itself runs your fuel pump. Do not top up with diesel to thin it: AdBlue doesn't mix with diesel, it sinks to the bottom of that tank, where your fuel is pulled from. If you are at a forecourt, whether it's the Texaco or the Esso, ask the staff to help roll the vehicle clear of the petrol pump. At home in Bishops Hull? Then the vehicle remains put. If your motor has already run, stop as soon as it is safe and switch off. The next exit is the place to come off when you're on the M5, under 3 miles from Bishops Hull. Tell us about how far it went: a run towards Wells, under 25 miles away, is a bigger job than a short hop across Bishops Hull. ## When our engineers turn up in Bishops Hull, what occurs? Anywhere the car came to rest, be it outside Bishops Hull Primary School, beside Frank Bond Communuty Centre or at home, the van comes to it. Our engineers ask what went in, about how much, and whether it has run, since the replies decide this work and our quote. No one heads out until you have heard the price over the phone. Emptying that tank comes next, then a thorough flush of the fuel system. With AdBlue that matters 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. Filter flushed or, if needed, replaced; fresh diesel in; and then a check of the vehicle. The motor is started next and checked to make sure it runs smoothly, all before our technicians go. Unstarted cars mostly mean a half-hour visit from the moment we arrive. The equipment is fine on a live forecourt, and hushed enough for a residential street late at night. Paying is on the day, not upfront, and you receive the documents your insurer asks for: an engineer's report and a VAT invoice. Misfuelling cover is part of many insurance policies — and so use the wait to check yours. ## About Bishops Hull and where it is Bishops Hull is a suburban area in Somerset, situated on the riverside at a low elevation of around 24 metres. Bishops Hull lies near several smaller communities, including Galmington, Frieze Hill, and Upcott, and is within commuting distance of the city of Wells. Bishops Hull has a population of approximately 3600 people, predominantly living in semi-detached housing. Bishops Hull is located in the South West region, about 134 miles west of London. ## AdBlue drains around Bishops Hull and across Somerset As a residential suburb, Bishops Hull shares its vans nearby places — Frieze Hill, Upcott — right across TA postcodes and the surrounding area beyond. Quote a postcode beginning TA1 5, and our van gets there quickest. Your car remains where it is. We drain it where it is — a side street near Bishops Hull Hub, a lay-by on the way to Bishops Hull Playing Field, a driveway. Guessing won't help behind St Peter & St Paul, on a boundary, or anywhere awkward to pin down; phone and check. ## In short, for Bishops Hull motorists Before you pour, read the cap. AdBlue in your diesel tank regardless? Leave the car switched off and ring 0333 366 0103; Petrol in Diesel empties it where it stands, throughout Somerset.