--- title: AdBlue in a Diesel Tank Blackhall Colliery: Explained canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/blackhall-colliery-durham/ location: Blackhall Colliery county: Durham latitude: 54.748400 longitude: -1.294670 service: AdBlue in a Diesel Tank updated: 2026-10-13 --- # AdBlue in a Diesel Tank in Blackhall Colliery: Why It Happens and How to Avoid It Pause here a minute when your diesel tank already has AdBlue in it: ignition off, engine off, then call 0333 366 0103. Usually, when the engine hasn't turned, it is emptied and thoroughly cleaned where the car sits around Blackhall Colliery. If you're reading before it has happened, the remainder of this page is about why it takes place and how to make sure it does not. ## Two fillers, two tanks: AdBlue in a diesel vehicle Many newer diesels on the roads around Blackhall Colliery and Horden carry two liquids, not one. Diesel goes to the engine. AdBlue goes to the 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. Under one flap, side by side: that is the arrangement on many motors. Elsewhere, AdBlue's filler sits under the bonnet or in your boot instead. Filling the diesel side at the petrol pump happens constantly. The AdBlue side is topped up far less frequently, usually from a bottle, and usually by somebody who has to stop and think where it goes. It is in the gap that the mistake lives. ## Blackhall Colliery: how AdBlue in the diesel tank happens It is hardly ever carelessness. Three things tend to line up. First, the warning. Low AdBlue brings a message from your car, and letting it run dry leads to limp mode — so a rushed top-up, maybe before work off Ninth Street, or outside The Hardwick Hotel on the way home that evening. Then the car is strange. A hire car, a new vehicle or a company car puts the fillers where your last one didn't, and your hand gets to for the cap it would have used on the old one. Lastly, the bottle goes in: a diesel filler or AdBlue filler, it goes in just as readily, and after the pour begins, nothing stops it. It takes seconds, whether out in High Hesleden or right in the heart of Blackhall Colliery. ## The AdBlue filler and the diesel filler: telling them apart Check these before pouring, at a forecourt around Blackhall Colliery or a driveway out in Monk Hesleden. Seconds, that's all. - Colour and marking: an AdBlue cap is frequently blue, or says "AdBlue", where a diesel cap usually doesn't. Go by the cap, not where it sits. - The size. On plenty of motors the AdBlue filler neck is the smaller of the two. - The flap. Look inside your fuel flap for a label. Many vehicles say there which fuel goes where. - The handbook. If your filler is not by your diesel cap, it's in your 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 Horden. ## How to top up without AdBlue in the diesel tank When the light comes on, wherever in Durham, use this routine. - Stop on level, motor off, with time in hand — never hurried on the side of Hardwick Street. - Find the AdBlue filler and read the cap. Say "AdBlue" out loud as you unscrew it. It sounds daft and 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. - Using the bottle's own spout, tip slowly — and stop when it is full or the bottle is empty. - Shut the cap, and look again — confirm the diesel cap remained closed throughout. Only then, start your car. Find during the second or third stage that the bottle went into the diesel filler? That is where you stop. Skip stage five altogether. ## Put AdBlue in the diesel tank around Blackhall Colliery already? Then the order of things is short. Don't start your motor. The fuel pump starts on plenty of diesels the moment the ignition goes on — so keep it off. Filling up with diesel won't weaken it: instead, AdBlue sinks to the base of that tank, right where the fuel is drawn from. If you're at a forecourt, whether it's the Esso or the Shell, ask the attendants to help push the car clear of the petrol pump. If you are on your own driveway in Blackhall Colliery, leave the car where it stands. Stop as soon as it is safe and switch off, if your engine has already run. On the A1(M), under 10 miles from Blackhall Colliery, that means the next exit. Roughly how far did it go? Crossing Blackhall Colliery is smaller work than a run of under 15 miles towards Sunderland, and so say. ## What occurs when we arrive around Blackhall Colliery Wherever your car came to rest, be it by Blackhall Primary School, beside Blackhall Methodist Church or at home, our van travels to it. Both the work and the price depend on three answers — what fluid, which quantity, and whether it has run — so we ask. That quote is given on the call, ahead of any van leaving. The system is then cleaned thoroughly, once your tank is drained. 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 that matters more with AdBlue than with petrol. The filter is flushed, or replaced where it needs to be; fresh diesel goes in; and your car is tested. The motor is fired up next and checked to confirm it runs correctly, all before our technicians head off. Most jobs are done in about half an hour after we get there, as long as the motor has not run — and the pumps our technicians use are safe on a busy forecourt and quiet at night beside a house. Payment happens on the day, not upfront, and you are given the documents an insurer asks for: an engineer's report and a VAT invoice. Many insurance policies include misfuelling cover, so it's worth checking yours whilst we're on the way. ## About Blackhall Colliery itself Blackhall Colliery is a coastal locality in County Durham, situated near the mouth of the River Wear and approximately 11 miles north of Sunderland. Blackhall Colliery has a population of around 2351 people, predominantly living in terraced housing. Blackhall Colliery is close to nearby places such as High Hesleden, Blackhall Rocks, and Hesleden, and is about 69 metres above sea level. Blackhall Colliery is located in the North East region of England, some 229 miles north of London. ## Blackhall Colliery and Durham: AdBlue drains across the area Blackhall Colliery is a coastal area, and our teams that cover it also work the towns near it, Blackhall Rocks and Hesleden among them, across the TS postcode area. Give a postcode that starts TS27 4, and the van arrives fastest. The car does not need to move. The drain happens on the spot, be it a driveway, a street by Blackhall War Memorial, or a lay-by on the way to Welfare Park. Guessing doesn't help behind St Andrew's Church, close to a border, or somewhere hard to pin down; ring and ask. ## The short version for Blackhall Colliery drivers Before you pour, read the cap. If AdBlue has gone in your diesel tank all the same, leave it off and phone 0333 366 0103. Petrol in Diesel clears it where it waits, anywhere in Durham.