--- title: Explained: AdBlue in a Diesel Tank Church Kelloe canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/church-kelloe-durham/ location: Church Kelloe county: Durham latitude: 54.723140 longitude: -1.465860 service: AdBlue in a Diesel Tank updated: 2026-10-20 --- # AdBlue in a Diesel Tank in Church Kelloe: How It Happens and How to Stop It Pause reading for a moment when the diesel tank already has AdBlue in it: ignition off, engine off, then ring 0333 366 0103. Usually, when your engine hasn't run, it's drained and thoroughly cleaned where your car is in Church Kelloe. Nothing happened yet? Below, the rest of the page covers the reasons it takes place and the how to prevent it altogether. ## Why does AdBlue in a diesel car need its own filler? Plenty of newer diesels around Town Kelloe, as well as Church Kelloe, run on two liquids; the motor takes just the diesel. Your exhaust, not the engine, is where AdBlue goes: sprayed into the gas to fresh them, from its own tank. There's a filler for each tank. On a lot of cars the two sit side by side under the same flap; on others the AdBlue filler is in the boot or under the bonnet. Filling the diesel side at the petrol pump happens all the time. Someone who has to stop and work out where it goes normally fills the AdBlue side, from a bottle, and far less often. Mistakes happen in that gap between them. ## AdBlue in the diesel tank around Church Kelloe: how it takes place Carelessness rarely causes it. What does is three things lining up together. On a driveway off Morley Crescent South before work, or in the car park outside The Davy Lamp heading home: that's where the rushed top-up takes place. Why the rush? As AdBlue gets low the vehicle warns you, and if it is gone, limp mode follows. The old car's cap is where your hand reaches — but a hire car, a new motor or a company car keeps the fillers somewhere else. That's the second factor: an unfamiliar motor. A spouted bottle finds no obstacle at a diesel filler any more than at an AdBlue one. And so the pour, after started, keeps on. It takes a few seconds, whether in Davy Lamp or bang in the heart of Church Kelloe. ## How to tell the AdBlue filler from the diesel one A few seconds is all these take — so check them before you tip anything, on a drive in Cassop or a forecourt around Church Kelloe. - Check the cap rather than going by where it sits: AdBlue ones are regularly blue or marked "AdBlue", and diesel caps usually are not. - Many cars fit AdBlue the smaller neck of the two. - Check inside the fuel flap: plenty of cars carry a label there saying which fuel goes where. - In your boot or under the bonnet: that is where the filler sits if it is not by the diesel cap, 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 at Durham. ## AdBlue top-ups that never reach the diesel tank For the day the warning appears — anywhere you are in Durham — a simple routine to use. - Stop somewhere level, engine off, with time to spare — not hurried on the side of Morley Crescent. - Say "AdBlue" out loud as you unscrew the cap, once you find the AdBlue filler and reading it. Silly, perhaps, but it does the trick. - If both sit under one flap, check your diesel cap is still closed before you lift the bottle — then leave the car on. - Gently is best, through the bottle's own spout, till it's full or the bottle is empty. - Shut the cap, then look once more — confirm the diesel filler stayed shut the whole time. After that, start the vehicle. If at step two or three you find you have already poured into your diesel side, stop there. Skip step five altogether. ## Put AdBlue in your diesel tank around Church Kelloe already? Short order, then. First: your engine stays off. The fuel pump runs on many diesels the moment your ignition goes on — so keep it off. Don't top up with diesel to dilute it: AdBlue does not mix with diesel, it sinks to the bottom of the tank, where your fuel is sucked from. The attendants at JET, Shell or any forecourt will usually help pushing the car clear when you ask. On your own drive around Church Kelloe? So the car remains where it is. Stop as soon as it is safe and switch off, if your motor has already run. The next exit is where to come off if you're on the A1(M), under 3 miles from Church Kelloe. Roughly how far did it go? Hopping across Church Kelloe is smaller work than a run of under 10 miles towards Durham, so tell us. ## What occurs when our technicians turn up around Church Kelloe Our engineers come to the car wherever it has stopped, whether that is outside Kelloe Primary School, near Saint Helens or on your own drive. The answers determine the work and the price, so we ask what got in, about how much, and if it's run. No one sets off until you have had the quote over the phone. The system is then cleaned thoroughly, after that tank is emptied. Unlike petrol, AdBlue forms crystals and attacks certain fuel-system metals, and neither washes away by itself. That is why it matters more. Testing comes last: before that, clean diesel goes in, and the fuel filter is cleaned or changed as needed. Then our engineers start the car and make sure it runs correctly before leaving. Most jobs are done in about half an hour once our technicians get there, provided your engine hasn't run — and the pumps our engineers use are safe on a live forecourt yet quiet after dark outside a house. Your insurer will ask for the engineer's report and the VAT invoice, and both are yours at the end. Payment comes on the day, with no deposit. Many insurance policies include misfuelling cover, so it's worth checking yours while we're on the way. ## About Church Kelloe and where it is Church Kelloe is a suburban area situated near the River Wear in County Durham, with a mix of semi-detached housing and local amenities. Church Kelloe sits at an elevation of 123 metres, approximately 6 miles from the city of Durham. Church Kelloe is close to nearby places such as Davy Lamp, Kelloe, and Quarrington Hill, and is part of the wider Durham urban area. Church Kelloe has a population of around 871 residents. ## AdBlue drains around Church Kelloe and across Durham Throughout DH postcodes, our teams that cover Church Kelloe — a residential suburb — work the nearby spots too, Quarrington Hill and Kelloe included. A postcode starting DH6 4 gets our van to you fastest. The vehicle doesn't need to shift. Our engineers drain it where it is — a side street close to Trimdon Grange Disaster Memorial, a lay-by on the way to East Hetton Woods, a driveway. Ring and ask rather than guessing if you're close to a boundary, or somewhere hard to describe, like the back of East Hetton Colliery. ## The short version for Church Kelloe motorists Read the cap before you 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 waits, anywhere in Durham.