--- title: AdBlue in a Diesel Tank Welton Hollow: Explained canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/welton-hollow-somerset/ location: Welton Hollow county: Somerset latitude: 51.291540 longitude: -2.462170 service: AdBlue in a Diesel Tank updated: 2026-10-25 --- # Welton Hollow: How Does AdBlue End Up in a Diesel Tank, and How Do You Avoid It? AdBlue already in your diesel tank? Then set this page aside a moment, leave the ignition and engine off, and ring 0333 366 0103. Caught before your engine runs, it's generally a drain and a thorough flush, done where the car is around Welton Hollow. Reading before the event? Then what follows explains how it happens and how to stop it happening at all. ## AdBlue in a diesel vehicle, and its separate tank Many current diesels on the roads about Welton Hollow and Waterside carry two liquids, not one. Diesel goes to your engine. 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. Other cars keep the AdBlue filler in your boot or under the bonnet; a lot more have both side by side behind one flap. At the petrol pump, your diesel side gets filled constantly. Far less frequently, the AdBlue side is filled — mostly from a bottle, by a person working out where it goes. It's in the gap that the error lives. ## How AdBlue in your diesel tank occurs in Welton Hollow It is seldom carelessness. Three things tend to line up. The warning comes first. As AdBlue runs low the car tells you, and if it runs out completely, the vehicle goes into limp mode. So the top-up is done in a hurry: on a driveway off Somervale Road before work, or in the car park outside The Railway on the way home. Next, your hand reaches for the cap it would have used on the old car — since a hire car, a new car or a company car places the fillers somewhere your last one didn't. Third, the spout fits: a diesel filler or AdBlue one, it goes in as easily, and after the pour starts, nothing halts it. Whether it takes place in Wheelers Hill or the middle of Welton Hollow, it is the same few seconds. ## The AdBlue filler and the diesel filler: telling them apart Look at these first, on a forecourt in Welton Hollow or a drive out in Radstock. Seconds, that's all. - Colour and lettering: an AdBlue cap is regularly blue, or says "AdBlue", where a diesel cap normally doesn't. Trust the cap, not its position. - Plenty of cars fit AdBlue the smaller filler of the two. - Check inside the fuel flap: plenty of vehicles carry a label there saying which fuel goes where. - Can't find it next to your diesel filler? In that case check below the bonnet or inside the boot — the handbook will say where. - Whoever had it before will know. Check when you collect a hire car or fleet car — from Oldfield Park's car park, say — rather than once the warning appears. ## Topping up AdBlue without it reaching the diesel tank For the day the warning appears — wherever you are around Somerset — a routine to follow. - Not in a rush on the side of Welton Road, not on a slope, not with the motor running: park and switch off properly. - Locate the AdBlue filler, check the cap, and speak the name "AdBlue" out loud as you unscrew it. It seems silly. It works. - The two under a single flap? Then confirm the lid on the diesel filler stays shut before raising the bottle. - Using the bottle's own spout, pour slowly — and stop when it is full or the bottle is empty. - Close the cap, then check once more — making sure your diesel filler stayed closed the whole time. Only then, start your car. If at stage two or three you find you have already poured into your diesel side, stop there. Don't go on to stage five. ## Put AdBlue in your diesel tank in Welton Hollow already? The short order of things, beginning with not starting the motor. Don't switch your ignition on; on many diesels that alone runs the fuel pump. Topping up with diesel will not weaken it: rather than mixing, AdBlue drops to the bottom of the tank, just where the fuel is drawn from. At a forecourt — Shell, Esso or another — the attendants will normally help push the car away, if you ask. If you're on your own driveway around Welton Hollow, leave the car where it is. Already started? Stop once it is safe, then switch off. The next exit is the place to leave when you're on the M32, under 15 miles from Welton Hollow. A short hop across Welton Hollow is a smaller job than a run towards Bath, under 10 miles away, so tell us roughly how far it went. ## When we turn up around Welton Hollow, what occurs? Our technicians come to your car wherever it has stopped, whether that is outside Welton Primary School, near Westfield Methodist Church or on your own drive. Both the work and the quote depend on three answers — which fluid, what quantity, and if it's run — so we ask. Nobody sets off before you have had our quote by phone. Emptying your tank comes next, then a full flush of your 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 doesn't wash out on its own. Testing is last: before that, clean diesel goes in, and the filter is cleaned or replaced as needed. After that our technicians start the engine and make sure it runs smoothly before leaving. Using pumps safe on a busy forecourt and quiet enough to use outside a house at night, most jobs in which the engine hasn't run need about half an hour after we are there. Payment is on the day, not upfront, and you are given the documents your insurer wants: an engineer report and a VAT invoice. Plenty of insurance policies include misfuelling cover, so it's worth checking yours whilst we are on the way. ## About Welton Hollow and where it is Welton Hollow is a suburban area situated on the riverside in Somerset, with an elevation of 77 metres and a mix of semi-detached housing. Welton Hollow lies close to the city of Bath, approximately 7.7 miles away, and is part of the larger South West region. Welton Hollow is surrounded by other residential areas, including Wheelers Hill, West Hill Gardens, and Westfield. Welton Hollow has a population of around 2954 residents. ## AdBlue drains across Somerset, Welton Hollow included Over BA postcodes, the teams covering Welton Hollow — a residential suburb — work the nearby locations too, Westfield and West Hill Gardens among them. A postcode starting BA3 3 gets the van to you fastest. There's no need to shift your car. A driveway, a lay-by on the way to Westhill Recreation Ground, a side street close to Radstock Baptist Church: we drain the car where it stands. Ring and ask instead of guessing if you're close to a border, or somewhere hard to describe, like the back of Saint Nicholas. ## In short, for Welton Hollow people Always, the cap; then, the tip. Petrol in Diesel empties it where it stands, anywhere across Somerset, if AdBlue has gone in your diesel tank regardless — so leave it off then phone 0333 366 0103.