--- title: AdBlue in a Diesel Tank Barwell? Read This canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/barwell-leicestershire/ location: Barwell county: Leicestershire latitude: 52.566750 longitude: -1.347220 service: AdBlue in a Diesel Tank updated: 2026-10-12 --- # Avoiding AdBlue in a Diesel Tank in Barwell: Why It Happens Leave your motor and ignition off and phone 0333 366 0103 now — the rest can wait when AdBlue is already in the diesel tank. In Barwell, catching it before your engine runs usually leaves a drain and a full flush on the spot. Here before the event? In that case what follows explains how it comes about and what to stop it happening at all. ## AdBlue in a diesel vehicle: two tanks, two fillers Not one fluid but two: that is what many newer diesels around Barwell and Hinckley run, with diesel feeding your motor. Your exhaust, not your motor, is where AdBlue ends up: dosed into the gas to clean them, from a separate tank. Each tank has its own filler. Some vehicles keep the AdBlue filler in the boot or under the bonnet; a lot more have the two side by side behind one flap. The diesel side is topped up at the petrol pump all the time. A driver who has to stop and think where it goes normally tops up the AdBlue side, from a bottle, and far less frequently. That gap is where the slip lives. ## How AdBlue in your diesel tank happens in Barwell Seldom is it carelessness: usually three things line up. Hurry comes from the warning. The car warns you as AdBlue runs low, and a dry tank sends it into limp mode — so the top-up happens quickly, before work on a driveway off The Barracks, or on the way home in the car park at The Queen's Head. Unfamiliar motors come next, as well. Rentals, new vehicles and company cars put their fillers in new places, and the hand goes for the cap it used on the old one. Nothing stops the pour after it has started, because a bottle with a spout goes into a diesel filler as readily as an AdBlue one. The bottle fits. Whether it occurs in Elmesthorpe or the middle of Barwell, it's the same few seconds. ## Telling the AdBlue filler from the diesel filler A few seconds is all the checks take — so run through them before you tip anything, on a driveway in The Crescent or a forecourt around Barwell. - The cap. The AdBlue cap is regularly blue, or marked "AdBlue". The diesel cap usually isn't. Read it instead of going by position. - Look at the size: the smaller filler neck is, on many motors, the AdBlue one. - The flap. Look inside the fuel flap for a label. Plenty of vehicles say there which fuel goes where. - The handbook shows where it lives when your filler isn't next to the diesel cap: the boot, or under the bonnet. - Ask the person who drove it last — before you leave, not when the light comes on — when you pick up a hire or company car from somewhere like the car park at Hinckley. ## How to top up without AdBlue in the diesel tank For the day the light comes on — anywhere it is in Leicestershire — a simple routine to follow. - Not in a rush on the side of High Street, not on a slope, not with the engine running: park and switch off properly. - Find the AdBlue filler, check the cap, and speak the name "AdBlue" aloud while you unscrew it. It sounds daft. It works. - The diesel cap remains on. When the two share a flap, make sure it is closed before lifting the bottle. - Gently is best, through the bottle's own spout, till it is full or the bottle is empty. - Only after that, start the car: close the cap, check once more, and make sure your diesel cap was never opened. Spot at step two or three that it has already gone into your diesel side? So stop right there. Stage five is out. ## AdBlue in the diesel tank already, around Barwell? Short order, then. First: your engine remains unstarted. Keep the ignition off too, because on plenty of diesels it by itself starts your fuel pump. Topping up with diesel will not dilute it: instead, AdBlue drops to the base of that tank, just where the fuel is drawn from. At a forecourt — Cedar Motors Filling Station, Asda or any other — the attendants will usually help push your car away, when you ask. Leave it where it is if you are on your own drive around Barwell. Stop as soon as it is safe then switch off, if your motor has already run. The next junction means the place to come off when you are on the M69, under 3 miles from Barwell. Tell us about how far it went: a run towards Leicester, under 15 miles away, is a bigger job than a short hop across Barwell. ## What occurs when our technicians turn up in Barwell Our engineers come to the vehicle wherever it has stopped, whether that is outside Barwell Church of England Academy, near Barwell Village Hall or on your own drive. What fluid got in, the amount, and whether it ran: our technicians ask since those replies decide both work and price. The price comes over the phone, before any van leaves. Emptying your tank comes next, followed by a thorough flush of your system. With AdBlue that matters more than with petrol: it crystallises and is corrosive to some of the metals in a fuel system, and so it does not wash out on its own. A test is last: before that, fresh diesel is added, and your filter is flushed or changed if necessary. After that our technicians fire it up and check it runs correctly before we go. With pumps fine on a busy forecourt and quiet enough to use outside a house at night, most jobs where your motor hasn't run take roughly half an hour once our engineers are there. Your insurer usually wants the engineer's report and the VAT invoice, and both are yours once this job is done. Payment is on the day, with no money upfront. Before we get there, take a look at your policy; many carry cover for misfuelling. ## About Barwell itself Barwell is a village in Leicestershire, situated approximately 10 miles west of Leicester, and is characterized by its semi-detached housing stock. Barwell sits in a relatively low-lying area, with an elevation of around 121 metres, and is surrounded by nearby places such as Elmesthorpe and Stapleton. Barwell is a residential community with a population of around 3954 people, and is located in the East Midlands region, about 90 miles northwest of London. ## AdBlue drains about Barwell, and Leicestershire beyond Throughout LE postcodes, the vans that cover Barwell — a rural village — work the nearby places too, Earl Shilton and Stapleton included. The van reaches you fastest with a postcode starting LE9 8. The car stays put. Anywhere it sits — beside The George Ward Centre, on a lay-by en route to Boston Way Park, on a drive — that is where it is cleared. If you are near a border, or somewhere hard to describe like the back of Barwell Methodist Church, ring and ask rather than guessing. ## Barwell people: the short version Pour no AdBlue till you've read the cap. Still AdBlue in the diesel tank? Petrol in Diesel can drain it wherever it is, anywhere across Leicestershire: switch the car off then ring 0333 366 0103.