--- title: AdBlue in a Diesel Tank Chilcompton: Explained canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/chilcompton-somerset/ location: Chilcompton county: Somerset latitude: 51.259090 longitude: -2.509110 service: AdBlue in a Diesel Tank updated: 2026-10-10 --- # Chilcompton: How Does AdBlue End Up in a Diesel Tank, and How Do You Avoid It? AdBlue already in your diesel tank? Then set this page aside a moment, keep your ignition and engine off, and phone 0333 366 0103. Caught before your engine runs, it's usually a drain and a thorough flush, done where your car is around Chilcompton. Nothing happened yet? Below, the rest of the page covers the why it occurs and the how to avoid it altogether. ## AdBlue in a diesel motor: two tanks, two fillers Plenty of modern diesels on the roads around Chilcompton and Barlake carry two liquids, not one. Diesel goes to the engine. AdBlue goes to the exhaust, where it is sprayed into the gas to fresh it, and it lives in a tank of its own. Different tanks, separate fillers. On a lot of cars the two sit side by side under the same flap; on others the AdBlue filler is in your boot or under the bonnet. The diesel side is topped up at the petrol pump all the time. A driver who has to stop and think where it goes usually fills the AdBlue side, from a bottle, and far less often. The mistake lives in that gap. ## How AdBlue in your diesel tank takes place around Chilcompton Carelessness seldom explains it. What does is three things coming up at once. On a drive off Broadway before work, or in the car park at The Somerset Wagon on the way home: that's where the rushed top-up takes place. Why the rush? As AdBlue gets low the vehicle warns you, and if it's empty, limp mode follows. Then the vehicle is unfamiliar. A hire car, a new vehicle or a company car puts the fillers where your last one didn't, and your hand gets to for the cap it would have used on the old one. A spout-topped bottle meets no obstacle at a diesel filler no more than at an AdBlue one. So the tip, once started, carries on. Downside or the middle of Chilcompton: it takes the same few seconds in both. ## Telling the AdBlue filler from the diesel filler Whether a Chilcompton forecourt or a driveway out in Old Down, take a couple of seconds over these before anything is poured in. - Colour and marking: an AdBlue cap is often blue, or says "AdBlue", where a diesel cap normally does not. Trust the cap, not where it sits. - Plenty of motors give AdBlue the smaller neck of the two. - The flap. Look inside the fuel flap for a label. Many vehicles say there which fuel goes where. - Cannot find it next to the diesel inlet? Then look beneath the bonnet or in the boot — the handbook says where. - The previous driver knows. Ask as you collect a rental or fleet car — from Frome's car park, say — not when the light appears. ## Keeping AdBlue out of the diesel tank when you top up When the light goes on, anywhere around Somerset, use this routine. - Park then switch off. Not on a slope, not with your engine running, and not in a rush on the side of Wells Road. - Find the AdBlue filler and read the cap. Say "AdBlue" out loud as you unscrew it. It sounds daft and it works. - If both sit under one flap, check the diesel cap is still closed before you lift the bottle — and leave it on. - Pour slowly, using the bottle's own spout. Stop when it is full or when the bottle is empty. - Before you start your car, close the cap and check a second time that your diesel cap never opened off. If at step two or three you find you have already poured into the diesel side, stop there. Leave out step five altogether. ## AdBlue in the diesel tank already, in Chilcompton? Brief order, then. First: your motor remains unstarted. The fuel pump runs on many diesels the moment the ignition is switched on — and so leave it off. Thinning it with more diesel fails, because AdBlue sinks to the bottom rather than blending — and that's where the fuel is drawn from. The attendants at Texaco, Esso or another forecourt will normally lend a hand pushing your car clear when you ask. If you're on your own driveway around Chilcompton, leave the vehicle where it sits. If the engine has already run, stop as soon as it is safe then switch off. The next junction means where to come off when you are on the M32, under 15 miles from Chilcompton. A short hop across Chilcompton is a smaller job than a run towards Wells, under 10 miles away, and so tell us about how far it went. ## Our arrival around Chilcompton, and what happens next Outside St Vigor & St John Church School, near Chilcompton Village Hall or on your own driveway: wherever the vehicle has stopped, our technicians come to it. What fluid got in, the amount, and if it ran: our engineers ask because the answers set the work and quote. No one heads out until you've had our price by phone. Then the tank is cleared and the fuel system purged thoroughly. Unlike petrol, AdBlue forms crystals and eats at some fuel-system metals, and none of that washes away by itself. That is why it matters more. A test is last: before that, clean diesel goes in, and the fuel filter is cleaned or changed if necessary. We don't leave until it has been started and is running correctly. Unstarted cars usually mean a half-hour job after arrival. The equipment is fine on a live filling station, and hushed enough for a residential street after dark. The insurer will ask for an engineer's report and the VAT invoice, and you get both at the end. Payment comes on the day, with no money upfront. It is worth checking your insurance as the van travels to you: misfuelling cover comes with many policies. ## About Chilcompton itself Chilcompton is a village in Somerset, situated near the River Cam, with a mix of old and new buildings, including many detached houses. Chilcompton sits at an elevation of 191 metres, overlooking the surrounding countryside. Chilcompton is located near several other small villages, including Downside, Stratton-on-the-Fosse, and Upper Benter, and is close to the city of Wells. Chilcompton has a population of approximately 1537 people, living in a range of housing types, predominantly detached homes. ## AdBlue drains across Somerset, Chilcompton included Chilcompton is a village, and our teams that cover it also work the towns around it, Stratton-on-the-Fosse and Upper Benter among them, across the BA postcode area. Quote a postcode that starts BA3 4, and the van arrives fastest. No need to move the car. A driveway, a lay-by on the way to Chilcompton Recreation Field, a side street close to Downside Abbey of St Gregory the Great: our engineers drain the car where it stands. Guessing doesn't help behind Saint John the Baptist, on a border, or anywhere awkward to pin down; ring and ask. ## Chilcompton people: the short version Before you pour, read the cap. AdBlue in your diesel tank regardless? Keep it switched off then phone 0333 366 0103; Petrol in Diesel drains it where it stands, across Somerset.