--- title: Long Clawson: AdBlue in a Diesel Tank, Explained canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/long-clawson-leicestershire/ location: Long Clawson county: Leicestershire latitude: 52.839400 longitude: -0.923710 service: AdBlue in a Diesel Tank updated: 2026-10-16 --- # Why It Happens and How to Avoid It: AdBlue in a Diesel Tank in Long Clawson If AdBlue is already in your diesel tank, stop reading for a moment: leave the engine and your ignition off and ring 0333 366 0103. Caught before your engine runs, it is usually a drain and a thorough flush, done where the vehicle is in Long Clawson. Here before the event? In that case what follows covers how it happens and what to prevent it ever happening. ## AdBlue in a diesel car, and its separate tank Diesel feeds the engine — yet plenty of newer diesels seen around Long Clawson and Holwell carry a second fluid too. Your exhaust, not the motor, is where AdBlue goes: dosed into the gas to clean them, from its own tank. Every tank has one filler of its own. Some motors put the AdBlue filler in the boot or under the bonnet; plenty more place the two side by side under one flap. The diesel side is fuelled at the petrol pump all the time. Rarely filled, AdBlue usually comes out of a bottle, poured by someone who has to stop and think what filler to use. It's in that gap that the error lives. ## How does AdBlue in your diesel tank occur in Long Clawson? Rarely is it carelessness: usually three things line up. On a driveway off East End before work, or in the car park at The Crown & Plough on the way home: that is where the rushed top-up happens. What is the reason for the rush? As AdBlue runs low your car warns you, and if it is gone, limp mode kicks in. The old car's cap is where your hand goes — but a rental car, a new motor or a company car keeps the fillers elsewhere. That's a second thing: a strange vehicle. A spout-topped bottle finds no obstacle at a diesel filler no more than at an AdBlue one. And so the pour, once begun, keeps on. Whether it takes place in Hose or the middle of Long Clawson, it's the same few seconds. ## The AdBlue filler and the diesel filler: telling them apart A few seconds is all these take — so run through them before you tip anything, on a drive in Hickling or a forecourt in Long Clawson. - Where it sits misleads; the cap does not. AdBlue caps tend to be blue or carry the name "AdBlue" — diesel ones normally do not. - Check the size: the smaller filler neck is, on many motors, the AdBlue one. - Look inside the fuel flap: many vehicles carry a label there saying which fuel goes where. - The handbook. If your filler isn't by the diesel cap, it's in your boot or under the bonnet, and the handbook says which. - Ask the person who drove it last — before you leave, not when the light comes on — if you pick up a hire or company car from somewhere like the car park outside Melton Mowbray. ## Keeping AdBlue out of the diesel tank when you top up Anywhere around Leicestershire the light comes on, here is a routine for the day. - Park and switch off. Not on a slope, not with your motor running, and not in a rush on the side of Church Lane. - Say "AdBlue" out loud as you unscrew the cap, after you find the AdBlue filler and read it. Silly, perhaps, yet 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. - Only after that, start the vehicle: close the cap, check a second time, and make sure your diesel cap was never opened. Find at step two or three that it's already gone into the diesel side? So stop right there. Skip step five entirely. ## Long Clawson: already put AdBlue in your diesel tank? Don't start your motor: that is where the short order of things begins. Do not switch the ignition on; on many diesels that alone runs the fuel pump. Diluting it with extra diesel won't work, because AdBlue settles to the base instead of blending — and that's where your fuel is sucked from. If you're at a forecourt, whether it is the the nearest petrol station or the Welcome Break, ask the staff to help push the car clear of the petrol pump. If you're on your own drive in Long Clawson, leave it where it stands. Already started? Pull over when it is sensible, then switch off. Long Clawson lies under 25 miles from the M1; on it, use the first junction. Mileage matters — a short hop across Long Clawson makes a smaller job than heading under 15 miles to Nottingham — so say roughly how far it went. ## When our engineers get there in Long Clawson, what takes place? Our engineers come to the car wherever it has stopped, whether that is outside Long Clawson Church of England Primary School, near Long Clawson Village Sign or on your own drive. Both the work and the quote rest on three replies — what fluid, which quantity, and if it's run — so our technicians ask. You get that price on the phone, before anybody sets off. Draining the tank comes next, followed by a thorough flush of your system. Unlike petrol, AdBlue forms crystals and attacks certain fuel-system metals, and neither clears away by itself. That is why it counts more. Once the filter has been cleaned — or replaced, if needed — clean diesel goes in, and finally your vehicle gets tested. Next we fire it up and check it runs smoothly before we leave. Most jobs are done in about half an hour after our engineers arrive, provided the engine has not run — and the pumps we use are fine on a busy forecourt and quiet after dark outside a house. No money upfront; you settle up on the day. At the end, the VAT invoice and a report from the engineer go to you for your insurer. Wrong-fuel cover is part of plenty of insurance policies — and so use the wait to check yours. ## About Long Clawson Long Clawson is a small village in Leicestershire, situated on the riverside at an elevation of 68 metres. Long Clawson lies near the villages of Hose and Nether Broughton, and is located approximately 12.5 miles from Nottingham. Long Clawson has a population of around 662 people, predominantly living in detached houses. ## AdBlue drains about Long Clawson, and Leicestershire beyond Nether Broughton and Broughton Lodges are among the towns near Long Clawson, a village, that the same teams cover, throughout LE postcodes. The van gets to you fastest with a postcode starting LE14 4. The car doesn't need to shift. Our engineers drain it where it is — a side street close to Long Clawson Methodist Church, a lay-by on the way to Clawson Thorns, a driveway. Assuming doesn't help behind Long Clawson Village Hall, on a border, or somewhere hard to pin down; ring and check. ## In short, for Long Clawson people Read the cap before you tip. AdBlue in your diesel tank regardless? Keep the car off and call 0333 366 0103; Petrol in Diesel empties it where it stands, across Leicestershire.