--- title: Elvet Hill: AdBlue in a Diesel Tank, Explained canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/elvet-hill-durham/ location: Elvet Hill county: Durham latitude: 54.767730 longitude: -1.589640 service: AdBlue in a Diesel Tank updated: 2026-10-27 --- # AdBlue in a Diesel Tank in Elvet Hill: Why It Occurs and How to Avoid It Leave the engine and ignition off then ring 0333 366 0103 first — reading can wait if AdBlue is already in the diesel tank. Caught before the engine runs, it is usually a drain and a thorough flush, done where your car is in Elvet Hill. Reading before the event? Then the rest covers why it happens and what to prevent it ever happening. ## Two fillers, two tanks: AdBlue in a diesel vehicle Not one fluid but two: that's how many newer diesels around Elvet Hill and Stonebridge carry, with diesel feeding the engine. Stored in a tank of its own, AdBlue is sprayed into the exhaust stream and cleans it. Each tank has a filler of its own. On a lot of motors the two sit side by side under the same flap; on others the AdBlue filler is in your boot or under the bonnet. The diesel side is topped up at the pump all the time. Much less frequently, the AdBlue side is filled — normally from a bottle, by someone working out where it goes. That gap is where the mistake lives. ## Elvet Hill: how AdBlue in the diesel tank happens It's hardly ever carelessness. Three things tend to line up. To start with, the warning. Low AdBlue triggers a warning from the vehicle, and running dry leads to limp mode — hence a rushed top-up, maybe before work off Westhouse Avenue, perhaps outside Duke of Wellington on the way home that evening. New-to-you motors come second, as well. Rentals, new motors and company cars place their fillers in new places, and the hand reaches for the cap it used on the old one. No part halts the pour after it has started, since a bottle with a spout goes into a diesel filler as easily as an AdBlue one. The bottle fits. Whether it occurs in Lowes Barn or the middle of Elvet Hill, it is the same few seconds. ## Which filler is for AdBlue, and which for diesel? A few seconds is all the checks take — so run through them before you tip anything, on a drive in Crossgate Moor or a forecourt in Elvet Hill. - Where it sits misleads; the cap does not. AdBlue ones are often blue or bear the word "AdBlue" — diesel ones usually don't. - Look at the size: the smaller neck is, on plenty of cars, the AdBlue one. - A label inside the fuel flap often shows which fuel goes where, on plenty of cars. Look for it. - Can't see it next to your diesel filler? Then check below the bonnet or in the boot — the owner's manual says where. - Collecting a hire or company car, perhaps at the car park outside Durham? Ask the person who drove it last before you set off, rather than once the light goes on. ## Keeping AdBlue out of your diesel tank when you top up A routine for the day the light comes on, wherever around Durham that is. - Switch off after you park — flat ground, motor off, and never rushed by Faraday Court at the roadside. - Find the AdBlue filler, read the cap, and speak the word "AdBlue" out loud while unscrewing it. It sounds daft. It does the trick. - The diesel cap stays on. When the two share a flap, make sure it is closed before lifting the bottle. - Stop once your tank fills or the bottle is empty; until then, pour slowly through its own spout. - Only then, start your car: close the cap, check a second time, and make sure your diesel cap was never opened. If at stage two or three you find you have already poured into the diesel side, stop there. Don't go on to step five. ## Put AdBlue in the diesel tank in Elvet Hill already? What follows is a short order of things, starting with no starting your engine. The fuel pump starts on plenty of diesels the moment your ignition goes on — and so keep it off. Don't top up with diesel to dilute it: AdBlue doesn't mix with diesel, it sinks to the bottom of the tank, where your fuel is drawn from. If you are at a forecourt, whether it's the Shell or the Esso, ask the attendants to help push the car away from the petrol pump. Your own driveway in Elvet Hill is the place it stays. Stop as soon as it is safe and switch off, if the engine has already run. Leave the A1(M) — under 3 miles out of Elvet Hill — at the next junction. Distance counts — a short hop across Elvet Hill makes a smaller job than driving under a mile towards Durham — so tell us about how far it went. ## What occurs when our engineers turn up in Elvet Hill Wherever your car came to rest, be it by St Margaret's Church of England Primary School, near America or at home, the van comes to it. Which fluid was put in, the amount, and if it ran: we ask because those replies set the work and price. That price is given over the phone, before any van leaves. 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, so it does not wash out on its own — which is why the flush counts more with AdBlue than with petrol. After your filter is flushed — or replaced, where required — clean diesel is added, and then the car is tested. We do not leave until it has been fired up and is running correctly. Most jobs are finished in roughly half an hour after our engineers arrive, provided the motor has not run — and the pumps we use are safe on a live forecourt yet quiet at night beside a house. Payment is on the day, not upfront, and you receive the documents your insurer wants: an engineer report and a VAT invoice. Plenty of insurance policies include misfuelling cover, so it is worth checking yours whilst we're on the way. ## About Elvet Hill, briefly Elvet Hill is a locality situated on the banks of the River Wear in County Durham, England, with a mix of detached housing and scenic riverside views. Elvet Hill lies close to the city of Durham, approximately 0.8 miles away, and is near other local places such as Lowes Barn and Nevilles Cross. Elvet Hill has a population of around 1924 residents and is characterised by its predominantly detached housing stock. Elvet Hill is located at an elevation of 103 metres above sea level, in a region known for its natural beauty and historic significance. ## AdBlue drains across Durham, Elvet Hill included Throughout DH postcodes, our vans covering Elvet Hill — a neighbourhood — work the surrounding places too, Nevilles Cross and Merryoaks included. A postcode starting DH1 4 gets our van to you fastest. Your car remains put. Anywhere it stands — beside China, on a layby en route to Durham Archery Tennis Club, at home — that's where it is cleared. Assuming won't help behind Italy, on a boundary, or anywhere hard to describe; phone and check. ## In short, for Elvet Hill people First, the cap; after that, the pour. Petrol in Diesel drains it where it stands, anywhere across Durham, if AdBlue has gone in the diesel tank regardless — so leave the vehicle off and call 0333 366 0103.