--- title: Eyres Monsell: AdBlue in a Diesel Tank, Explained canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/eyres-monsell-leicestershire/ location: Eyres Monsell county: Leicestershire latitude: 52.591000 longitude: -1.151060 service: AdBlue in a Diesel Tank updated: 2026-10-09 --- # Preventing AdBlue in a Diesel Tank in Eyres Monsell: Why It Happens AdBlue already in your diesel tank? Then put this page down for now, leave the ignition and engine off, and call 0333 366 0103. A drain and a full flush, done just where the vehicle sits in Eyres Monsell, is normally all it takes when caught before your motor runs. Here before the event? In that case what follows explains how it happens and what to stop it happening at all. ## AdBlue in a diesel car, and its separate tank Many newer diesels on the roads round Eyres Monsell and Blaby carry two liquids, not one. Diesel goes to the engine. Kept in a tank of its own, AdBlue is sprayed into the exhaust gas and cleans it. There is a filler on every tank. Other motors keep the AdBlue filler in your boot or under the bonnet; a lot more have the two side by side behind one flap. The diesel side is filled at the petrol pump all the time. Seldom topped up, AdBlue usually goes in from a bottle, tipped by a driver who must stop and think which cap it needs. It is in that gap that the error lives. ## AdBlue in your diesel tank around Eyres Monsell: how it takes place It's hardly ever carelessness. Three things tend to line up. On a driveway off Simmins Crescent before work, or in the car park outside The Scarlet Pimpernel on the way home: that's where the hurried top-up takes place. What is the reason for the rush? As AdBlue runs low the car tells you, and once it's empty, limp mode follows. The old car's cap is where the hand reaches — yet a rental car, a new motor or a company car puts the fillers somewhere else. That's a second factor: a strange car. A spout-topped bottle meets no resistance at a diesel filler no more than at an AdBlue one. So the pour, after started, keeps on. It's a few seconds, whether out in Glen Parva or right in the heart of Eyres Monsell. ## The AdBlue filler and your diesel filler: telling them apart Before you pour anything, whether on a drive in South Wigston or a forecourt in Eyres Monsell, check these. They take a few seconds. - Check the cap rather than going by where it sits: AdBlue ones are regularly blue or marked "AdBlue", and diesel ones usually aren't. - Plenty of cars give AdBlue the smaller filler of the two. - Open the flap and look for a label — plenty of motors show which belongs in which filler just there. - In the boot or under the bonnet: that is where your filler is if it is not by the diesel cap, and the handbook says which. - The person who drove it last. On a hire or company car picked up from somewhere like the car park outside South Wigston, ask before you leave, not when the light comes on. ## How to top up without AdBlue in your diesel tank On the day the light comes on — anywhere it is across Leicestershire — a routine to use. - Park and switch off. Not on a slope, not with the engine running, and not in a rush on the side of Sturdee Road. - Silly as it sounds, speaking "AdBlue" aloud as you unscrew the cap works — after you have located the filler and read the cap. - The diesel cap remains on. When both share a flap, make sure it's shut before the bottle comes up. - Pour slowly, using the bottle's own spout. Stop when it is full or when the bottle is empty. - Shut the cap, then check once more — confirm the diesel filler remained shut throughout. Only then, start the car. If at stage two or three you find you have already poured into your diesel side, stop there. Don't go on to step five. ## AdBlue in your diesel tank already, around Eyres Monsell? Brief list, then. First: your engine remains unstarted. Don't switch the ignition on; on plenty of diesels that alone runs the fuel pump. Thinning it with more diesel fails, since AdBlue sinks to the bottom rather than mixing — and that's where the fuel is pulled from. If you are on a forecourt, whether it is the Shell or the BP, ask the staff to help push your car away from the pump. If you're on your own drive in Eyres Monsell, leave the car where it sits. Already run? Pull over when it is sensible, then switch off. The next junction is where to leave if you're on the M1, under 3 miles from Eyres Monsell. Mileage matters — a short hop across Eyres Monsell makes a smaller job than heading under 5 miles to Leicester — so say roughly how far it went. ## Our arrival around Eyres Monsell, and what happens next Our engineers come to your car wherever it has stopped, whether that is outside Eyres Monsell Primary School, near St Hugh's Parish Church or on your own drive. Both the work and our quote depend on three answers — which liquid, which amount, and whether it's run — so we ask. You get that price on the phone, before anyone heads out. The system is then flushed thoroughly, after your tank is emptied. Much more than with petrol, it matters here: the crystals build up, some metals are attacked, and none of it washes away on its own, no matter how long it sits. Your filter is flushed, or replaced where it needs to be; clean diesel goes in; and the car is tested. Next our technicians start the car and confirm it runs properly before we go. If your motor hasn't run, most jobs take about half an hour once we are there, using pumps that are fine on a working forecourt and quiet enough to use outside a house at night. The insurer will ask for the engineer's report and the VAT invoice, and you get both at the end. Payment is on the day, with no money upfront. Misfuelling cover is part of many insurance policies — and so use the wait to check yours. ## About Eyres Monsell Eyres Monsell is a suburban area located on the outskirts of Leicester, approximately 3 miles south of the city centre. Eyres Monsell sits at an elevation of around 89 metres, in the gently rolling landscape of the East Midlands. Eyres Monsell is characterized by its predominantly semi-detached housing stock, with nearby places including Glen Parva, Aylestone, and Aylestone Park. Eyres Monsell is home to a population of around 9063 people, making it a sizable residential community within the Leicester urban area. ## AdBlue drains across Leicestershire, Eyres Monsell included Throughout LE postcodes, our teams covering Eyres Monsell — a residential suburb — work the surrounding locations too, Aylestone Park and Aylestone among them. The van gets to you fastest with a postcode starting LE2 9. No need to shift the vehicle. A driveway, a lay-by on the way to Grange Spinney, a side street near St John Bosco Church: our technicians drain the vehicle where it is. If you are near a border, or somewhere hard to describe like the back of Eyres Monsell Community Centre, ring and ask instead of guessing. ## For Eyres Monsell drivers, the short version Always, the cap; then, the tip. Petrol in Diesel drains it where it stands, anywhere in Leicestershire, if AdBlue has gone in the diesel tank all the same — so leave the car off then call 0333 366 0103.