--- title: AdBlue in a Diesel Tank Beer? Read This canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/beer-devon/ location: Beer county: Devon latitude: 50.698810 longitude: -3.092830 service: AdBlue in a Diesel Tank updated: 2026-10-25 --- # Preventing AdBlue in a Diesel Tank in Beer: Why It Occurs AdBlue already in your diesel tank? In that case set this page down a moment, leave your ignition and motor off, then call 0333 366 0103. Around Beer, finding it before your motor turns normally means a drain and a full flush where it stands. The remainder of this page covers why it takes place and how to make sure it doesn't — handy if you are reading ahead of time. ## AdBlue in a diesel car, and its separate tank Many modern diesels on the roads around Beer and Branscombe carry two liquids, not one. Diesel goes to your engine. AdBlue goes to the exhaust, where it is sprayed into the gas to clean 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. Filling the diesel side at the pump goes on all the time. Seldom filled, AdBlue normally goes in from a bottle, poured by someone who has to stop and think which filler to use. It's in that gap that the slip happens. ## AdBlue in the diesel tank around Beer: how it takes place Carelessness rarely causes it. Instead is three things coming up together. The warning comes first. As AdBlue runs low the car tells you, and if it runs out altogether, the vehicle goes into limp mode. So the top-up is done in a hurry: on a driveway off New Cut before work, or in the car park outside The Dolphin on the way home. Then the vehicle is strange. A hire car, a new vehicle or a company car puts the fillers where your last one did not, and the hand hits for the cap it would have used on the old one. Nothing stops the tip once it has started, since a bottle with a spout goes into a diesel filler as readily as an AdBlue one. The bottle fits. Seaton or the middle of Beer: it takes the same few seconds in both. ## Telling the AdBlue filler from your diesel filler Check these before pouring, at a forecourt around Beer or a drive over in Axmouth. Seconds, no more. - Check the cap rather than going by position: AdBlue caps are frequently blue or marked "AdBlue", and diesel caps usually aren't. - Many vehicles fit AdBlue the smaller neck of the two. - A label inside the fuel flap often says which fuel goes where, on many cars. Check for it. - The handbook shows which it is when your filler isn't next to the diesel cap: your boot, or under the bonnet. - The person who drove the vehicle last. On a hire or company car picked up from somewhere like the car park outside Axminster, ask before you leave, not when the light comes on. ## Keeping AdBlue out of your diesel tank when you top up A routine for the day the light comes on, wherever across Devon that is. - Switch off after you park — level ground, engine stopped, and not rushed by Clapps Lane at the roadside. - Locate the AdBlue filler, check the cap, and say the name "AdBlue" aloud while unscrewing it. It seems daft. It does the trick. - The two under a single flap? Then confirm the cap on your diesel filler is still closed before raising the bottle. - Pour slowly, using the bottle's own spout. Stop when it's full or when the bottle is empty. - Close the cap and check again. Make sure the diesel cap was never opened. Only then start your car. Spot at stage two or three that it has already gone into the diesel side? Then stop right there. Stage five is off limits. ## Put AdBlue in the diesel tank around Beer already? The short order of things, starting with no starting the engine. Keep your ignition off as well, because on plenty of diesels it alone starts the pump. Filling up with diesel will not weaken it: instead, AdBlue sinks to the bottom of the tank, right where the fuel is drawn from. The attendants at Tesco, Tower Services or any forecourt will usually help pushing the car clear if asked. Your own driveway around Beer is where it should stay. If your engine has already run, stop as soon as it is safe then switch off. Leave the M5 — under 25 miles out of Beer — at the first exit. Tell us roughly how far it went: a run towards Exeter, under 25 miles away, is a bigger job than a short hop across Beer. ## What occurs when we get there around Beer Our van comes to the car wherever it stopped — your own drive, beside St Michael, or by Beer Church of England Primary School. Both the work and our quote depend on three replies — what fluid, what quantity, and whether it's run — so we ask. No one sets off before you have heard our quote by phone. Draining the tank comes next, followed by a thorough flush of your system. AdBlue crystallises and is corrosive to some of the metals in a fuel system, so it does not wash out on its own — which is why that counts more here than with petrol. The filter cleaned or, where it must be, replaced; fresh diesel in; and then a test of your car. The engine is started next and checked to confirm it runs properly, all before our engineers leave. Most jobs are finished in about half an hour after our technicians arrive, as long as the engine hasn't run — and the pumps we use are safe on a busy forecourt and quiet at night outside a house. Payment happens on the day, not upfront, and you are given the paperwork your insurer wants: an engineer's report and a VAT invoice. It's worth checking your insurance while we travel to you: misfuelling cover comes with many policies. ## About Beer and where it is Beer is a coastal village in Devon, situated near the town of Seaton and overlooking Lyme Bay. Beer sits at an elevation of 27 metres, with detached housing being the predominant type of accommodation in the village. Beer is located approximately 19 miles from Exeter and is close to other nearby places such as Holyford and St Dympnas. ## AdBlue drains across Devon, Beer included As a coastal village, Beer shares its vans nearby places — St Dympnas, Holyford — right through EX postcodes and the wider area around them. Give a postcode beginning EX12 3, and our van gets there fastest. No need to shift the vehicle. A driveway, a lay-by on the way to Sun Garden, a side street near Pecorama: we drain it where it sits. Ring and ask rather than guessing if you are close to a border, or somewhere hard to explain, like the back of Art Gallery Phone Box. ## The short version for Beer motorists Before you tip, read the cap. If AdBlue has gone in your diesel tank anyway, leave the car off and phone 0333 366 0103. Petrol in Diesel drains it where it sits, anywhere in Devon.