--- title: Upper Easton: AdBlue in a Diesel Tank, Explained canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/upper-easton-bristol/ location: Upper Easton county: Bristol latitude: 51.461490 longitude: -2.567030 service: AdBlue in a Diesel Tank updated: 2026-10-12 --- # Why It Happens and How to Prevent It: AdBlue in a Diesel Tank in Upper Easton If AdBlue is already in your diesel tank, stop reading for a moment: leave your motor and your ignition off then call 0333 366 0103. Around Upper Easton, finding it before the engine runs usually leaves draining and a full flush on the spot. The remainder of this page explains why it takes place and how to ensure it does not — handy if you are reading before it has happened. ## Two fillers, two tanks: AdBlue in a diesel motor Diesel feeds the motor — yet plenty of modern diesels seen about Upper Easton and Lower Easton carry another fluid too. Stored in a tank of its own, AdBlue is sprayed into your exhaust stream and cleans it. Different tanks, different fillers. 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. At the pump, your diesel side is topped up all the time. Seldom topped up, AdBlue usually comes from a bottle, tipped by a driver who has to stop and think which cap to use. That gap is where the mistake lives. ## How AdBlue in the diesel tank happens around Upper Easton Carelessness seldom explains it. Instead is three things coming up at once. Hurry comes from the warning. The car tells you as AdBlue runs low, and an empty tank puts it into limp mode — so the top-up gets done quickly, before work on a driveway off Bouverie Street, or heading home in the car park at The Queens Head. Then your car is unfamiliar. A hire car, a new motor or a company car puts the fillers where your last one did not, and your hand gets to for the cap it would have used on the old one. Nothing halts the tip 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 Moorfields or the middle of Upper Easton, it's the same few seconds. ## Which filler is for AdBlue, and which for diesel? Before you tip anything, whether on a driveway in Redfield or a forecourt in Upper Easton, check these. They take a couple of seconds. - The cap. The AdBlue cap is frequently blue, or marked "AdBlue". Your diesel cap usually isn't. Read it instead of going by position. - Plenty of vehicles give AdBlue the smaller filler of the two. - The flap. Look inside your fuel flap for a label. Many motors say there which fuel goes where. - Cannot find it next to the diesel inlet? Then check beneath the bonnet or inside the boot — the handbook says which. - Ask the person who drove it last — before you leave, not when the light comes on — if you collect a hire or company car from somewhere like the car park at Lawrence Hill. ## AdBlue top-ups that never reach the diesel tank When the light comes on, anywhere around Bristol, use this routine. - Park and switch off. Not on a slope, not with your motor running, and not in a rush on the side of Easton Road. - Find the AdBlue filler and read the cap. Say "AdBlue" out loud as you unscrew it. It sounds silly and it does the trick. - The diesel cap stays on. Where the two sit under a flap, make sure it's shut before the bottle comes up. - Pour slowly, using the bottle's own spout. Stop when it's full or when the bottle is empty. - Close the cap, then check once more — making sure the diesel cap remained closed throughout. Only then, start your car. Discover during the second or third stage that the bottle went in the wrong tank? That is where you stop. Leave out step five entirely. ## Upper Easton: already put AdBlue in the diesel tank? Short list, then. First: the motor remains unstarted. The fuel pump runs on many diesels the moment the ignition goes on — and so keep it off. Don't top up with diesel to thin it: AdBlue does not mix with diesel, it sinks to the bottom of the tank, where your fuel is pulled from. On a forecourt — Esso, Shell or another — the staff will normally help push your car away, if you ask. If you're on your own drive in Upper Easton, leave it where it stands. Already started? Stop when it is safe, then turn off. Come off the M32 — under a mile out of Upper Easton — at the next exit. A short hop across Upper Easton is a smaller job than a run towards Bristol, under 3 miles away, and so tell us roughly how far it went. ## What happens when our engineers get there in Upper Easton By E-Act Bannerman Road Community Academy, near Ben Tillett or on your own driveway: wherever your car has stopped, our engineers come to it. Those answers determine the work and our price, and so our engineers ask what got in, roughly how much, and if it has run. No one sets off until you've heard our price by phone. Then the tank is drained and the fuel system rinsed thoroughly. AdBlue crystallises and is corrosive to some of the metals in a fuel system, so it doesn't wash out on its own — which is why that matters more here than with petrol. Once your filter has been flushed — or renewed, if required — clean diesel is added, and then your vehicle gets tested. Your engine is started next and tested to confirm it runs correctly, all before our engineers leave. Unstarted vehicles mostly need a half-hour job from the moment we arrive. The equipment is fine on a busy filling station, and hushed enough for a residential street after dark. Paying is on the day, not upfront, and you receive the documents an insurer asks for: an engineer report and a VAT invoice. Misfuelling cover is part of many insurance policies — so use the wait to check yours. ## About Upper Easton, briefly Upper Easton is a suburban area located on the riverside in Bristol, with an elevation of 19 metres above sea level. Upper Easton sits close to the city centre, approximately 1.6 miles from Bristol, and is surrounded by other nearby places such as Moorfields and Russell Town. Upper Easton is characterized by its predominantly terraced housing stock, which reflects the area's historical development as a residential suburb. Upper Easton is home to a population of around 15511 people, according to approximate estimates. ## AdBlue drains across Bristol, Upper Easton included Russell Town and Barton Hill are among the places around Upper Easton, a residential suburb, that the same vans cover, throughout BS postcodes. Fastest of all: give a BS5 0 postcode for the van. No need to move the vehicle. Wherever it stands — near New Birth Tabernacal of Praise, in a layby en route to Bannerman Road Park, on a drive — that is where it is emptied. Guessing doesn't help behind Bristol Progressive Synagogue, close to a border, or somewhere hard to describe; ring and ask. ## The short version for Upper Easton motorists Read the cap before you tip. Petrol in Diesel empties it where it stands, anywhere around Bristol, if AdBlue has gone in the diesel tank regardless — so leave the vehicle off then phone 0333 366 0103.