--- title: Explained: AdBlue in a Diesel Tank Uppingham canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/uppingham-rutland/ location: Uppingham county: Rutland latitude: 52.588080 longitude: -0.722840 service: AdBlue in a Diesel Tank updated: 2026-10-28 --- # Why It Occurs and How to Prevent It: AdBlue in a Diesel Tank in Uppingham Pause here for a moment when your diesel tank already holds AdBlue in it: ignition off, motor off, and phone 0333 366 0103. Around Uppingham, catching it before the engine runs normally means draining and a thorough flush where it stands. Not happened yet? Further down, the page covers the reasons it takes place and the how to avoid it for good. ## Why does AdBlue in a diesel motor need its own filler? Plenty of newer diesels on the roads about Uppingham and Lyddington carry two liquids, not one. Diesel goes to the engine. Stored in a tank of its own, AdBlue is fed into your exhaust stream to clean it. Each tank comes with a filler of its own. Some cars keep the AdBlue filler in your boot or under the bonnet; plenty of others place the two side by side under one flap. Diesel goes in at every filling station visit, week in, week out. Rarely filled, AdBlue normally comes from a bottle, tipped by a driver who has to stop and think which cap it needs. The error lives in that gap. ## Uppingham: how AdBlue in the diesel tank happens Three things tend to come together, and carelessness is seldom one of them. The warning comes first. As AdBlue runs low the vehicle tells you, and if it runs out completely, the car goes into limp mode. So the top-up is done in a hurry: on a driveway off High Street West before work, or in the car park outside The Vaults on the way home. Then your car is strange. A hire car, a new vehicle or a company car puts the fillers where your last one did not, and your hand reaches for the cap it would have used on the old one. No part stops the pour once it has started, because a bottle with a spout goes into a diesel filler as readily as an AdBlue one. The bottle fits. The same few seconds settle it, in the middle of Uppingham or out in Ayston. ## How to tell the AdBlue filler from the diesel one Before you tip anything, whether on a drive in Preston or a forecourt around Uppingham, check these. They take a few seconds. - The cap. The AdBlue cap is frequently blue, or marked "AdBlue". Your diesel cap usually is not. Read it instead of going by where it sits. - The size. On many cars the AdBlue filler neck is the smaller of the two. - Lift the filler flap and check for a label — many cars show which goes in each filler just there. - Can't find it next to the diesel filler? Then look below the bonnet or inside the boot — the owner's manual says which. - Collecting a hire or company car, say at the car park at Oakham? Check with the person who drove the car last before leaving, not when the light comes on. ## Keeping AdBlue out of your diesel tank when you top up For the day the warning appears — wherever you are in Rutland — a simple routine to use. - Park and switch off. Not on a slope, not with your motor running, and not in a rush on the side of High Street East. - Say "AdBlue" out loud as you unscrew the cap, after you find the AdBlue filler and read it. Silly, yes, yet it does the trick. - Leave your diesel cap on. If both sit under one flap, check your diesel cap is still closed before you lift the bottle. - Gently is best, through the bottle's own spout, till it is full or the bottle is empty. - Only then, start the vehicle: close the cap, check again, and make sure the diesel cap was never opened. Spot at step two or three that it has already gone into your diesel side? Then stop just there. Skip step five entirely. ## Uppingham: already put AdBlue in the diesel tank? What follows is a short order of things, beginning with not starting the motor. Don't switch the ignition on; on many diesels that alone runs the fuel pump. AdBlue does not mix with diesel — it sinks to the bottom of your tank, where the fuel is sucked from — so don't top up with diesel to dilute it. Ask the staff to help push the car away from the pump if you are on a forecourt — the Jet, the Esso or anywhere else. At home around Uppingham? Then the car stays put. When your engine has run by now, pull over somewhere safe then turn the car off. On the Great North Road, under 25 miles from Uppingham, that means the next junction. Tell us about how far it went: a run towards Leicester, under 25 miles away, is a bigger job than a short hop across Uppingham. ## Our arrival in Uppingham, and what occurs next Outside Uppingham Church of England Primary School, close to Forest Framing and Gallery or on your own driveway: wherever the vehicle has stopped, we come to it. Both the work and our quote rest on three replies — which fluid, what amount, and if it's run — so our engineers ask. During the call itself, you hear the price — before anything else. The system is then rinsed thoroughly, once your tank is drained. More than with petrol, it counts with AdBlue: the crystals build up, some metals are attacked, and none of it washes away on its own, however long it sits. Filter cleaned or, if needed, swapped; fresh diesel in; then a test of the car. Before leaving, we fire it up and confirm that it is running correctly. Most jobs are done in about half an hour once our engineers get there, provided the engine has not run — and the pumps we use are safe on a live forecourt yet quiet after dark beside a house. Nothing in advance; you settle up on the day. Afterwards, a VAT invoice and a report from the engineer go to you for the insurer. Misfuelling cover is part of plenty of insurance policies — and so use the wait to look at yours. ## About Uppingham, briefly Uppingham is a small town in the county of Rutland, situated on the River Gwash in the East Midlands region of England. Uppingham sits at an elevation of 149 metres, with a mix of old and new buildings, including many detached houses. Uppingham is located near several smaller villages, including Ayston, Bisbrooke, and Stoke Dry, and is within commuting distance of Leicester, the nearest city. Uppingham has a population of around 4722 people, according to recent estimates. ## AdBlue drains around Uppingham and across Rutland Uppingham is a riverside town, and the teams that cover it also work the towns around it, Bisbrooke and Stoke Dry among them, across the LE postcode area. Our van reaches you fastest with a postcode starting LE15 9. Your car doesn't need to move. A driveway, a lay-by on the way to The Upper, a side street near St Peter and St Paul: we drain it where it sits. Ring and ask instead of guessing if you're close to a boundary, or somewhere hard to describe, like the back of Chapel. ## The short version for Uppingham drivers Tip no AdBlue till you have read the cap. Petrol in Diesel drains it where it stands, anywhere in Rutland, if AdBlue has gone in the diesel tank anyway — and so leave the vehicle off and ring 0333 366 0103.