--- title: AdBlue in a Diesel Tank Coneygar? Read This canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/coneygar-dorset/ location: Coneygar county: Dorset latitude: 50.739040 longitude: -2.753360 service: AdBlue in a Diesel Tank updated: 2026-10-13 --- # Avoiding AdBlue in a Diesel Tank in Coneygar: Why It Occurs If AdBlue is already in your diesel tank, stop reading for a moment: leave your motor and your ignition off and call 0333 366 0103. Around Coneygar, finding it before your motor runs usually means a drain and a full flush on the spot. The remainder of this page covers why it happens and how to ensure it does not — useful if you are reading ahead of time. ## Why does AdBlue in a diesel vehicle need its own filler? Plenty of modern diesels around New Zealand, as well as Coneygar, carry on two liquids; your engine takes only your diesel. Your exhaust, not your engine, is where AdBlue goes: dosed into the fumes to fresh them, from its own tank. Different tanks, separate fillers. On a lot of vehicles the two sit side by side under the same flap; on others the AdBlue filler is in the boot or under the bonnet. Topping up your diesel side at the petrol pump happens constantly. A driver who has to stop and think where it goes normally fills the AdBlue side, from a bottle, and much less regularly. Mistakes happen in the gap between the two. ## Coneygar: how AdBlue in the diesel tank happens Three things tend to come together, and carelessness is seldom one of them. To start with, the warning. Low AdBlue brings a warning from the vehicle, and running dry leads to limp mode — so a rushed top-up, perhaps before work off Coneygar Road, or outside King Charles Tavern on the way home after work. Next, the hand goes for the cap it would have used on the old car — since a rental car, a new vehicle or a company car places the fillers where your last one did not. Lastly, the spout fits: diesel filler or AdBlue one, it goes in just as easily, and after the tip starts, nothing stops it. The same few seconds decide it, in the middle of Coneygar or out in St Andrews Well. ## Telling the AdBlue filler from your diesel filler Look at these first, on a forecourt in Coneygar or a driveway over in Court Orchard. Seconds, that's all. - The cap. The AdBlue cap is frequently blue, or marked "AdBlue". The diesel cap normally is not. Read it instead of going by where it sits. - Check the size: the smaller filler neck is, on many vehicles, the AdBlue one. - Look inside the fuel flap: many motors carry a label there showing which fuel goes where. - In your boot or under the bonnet: that's where the filler sits if it is not by the diesel cap, and the handbook tells you 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 at Maiden Newton. ## Keeping AdBlue out of your diesel tank when you top up A routine for the day the light comes on, wherever in Dorset that is. - Stop on level, engine off, with time to spare — not rushing on the side of Claremont Road. - Locate the AdBlue filler, check the cap, and say the word "AdBlue" aloud while you unscrew it. It sounds daft. 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. - Gently does it, through the bottle's own spout, till it's full or the bottle runs out. - Close the cap, then check once more — making sure your diesel filler remained closed the whole time. After that, start the vehicle. Stop there if you find, at stage two or three, that you have already poured into the diesel side. Leave out step five entirely. ## Coneygar: already put AdBlue in your diesel tank? Brief list, then. First: your motor stays off. On many diesels the ignition alone runs the fuel pump, so do not switch the vehicle on. AdBlue doesn't mix with diesel — it sinks to the bottom of your tank, where the fuel is sucked from — so do not top up with diesel to thin it. The staff at Esso, Morrisons or another forecourt will normally help pushing the vehicle clear when you ask. On your own drive in Coneygar? Then the car remains put. Where the engine has been run by now, pull over somewhere safe then turn the car off. Coneygar lies under 25 miles from the M5; on it, use the first exit. Tell us roughly how far it went: a run towards Wells, under 50 miles away, is a bigger job than a short hop across Coneygar. ## What takes place when our technicians turn up around Coneygar Wherever the car came to rest, whether by St Catherine's Roman Catholic School, near Town Council Offices or at home, our van comes to it. The replies decide the work and our price, and so we ask what went in, about how much, and whether it has run. You get that quote on the phone, before anybody sets off. After that: draining, then a full 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 that counts more here than with petrol. Filter flushed or, if needed, swapped; fresh diesel in; then a check of your vehicle. Then our technicians start the engine and make sure it runs properly before we leave. Unrun cars usually need a half-hour visit from arrival. The kit is safe on a live forecourt, and hushed enough for a driveway after dark. Paying happens on the day, not upfront, and you receive the paperwork an insurer asks for: an engineer's report and a VAT invoice. Before we get there, have a look at your insurance documents; many include cover for misfuelling. ## About Coneygar Coneygar is a coastal suburban area in Dorset, situated near the towns of Bridport and Allington, with St Andrews Well nearby. Coneygar has a relatively low elevation of 31 metres and is located approximately 125.6 miles from London. Coneygar is characterised by its predominant flat housing and a population of around 2797 residents. Coneygar sits within the South West region of England, close to the nearest city of Wells, which is 32.8 miles away. ## AdBlue drains in Coneygar and across Dorset Coneygar is a residential suburb, and our teams that cover it also work the places near it, Bridport and Allington among them, across the DT postcode area. Fastest of all: give a DT6 3 postcode for our van. The car does not need to move. A driveway, a lay-by on the way to Flaxhayes Playing Field, a side street near The Lyric Theatre: we drain it where it is. Ring and ask rather than assuming if you're near a border, or somewhere hard to explain, like the back of The Chapel in the Garden. ## In short, for Coneygar people First, the cap; after that, the pour. If AdBlue has gone in your diesel tank anyway, leave it off then ring 0333 366 0103. Petrol in Diesel drains it where it sits, anywhere around Dorset.