--- title: New Botley: AdBlue in a Diesel Tank, Explained canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/new-botley-oxfordshire/ location: New Botley county: Oxfordshire latitude: 51.751480 longitude: -1.282090 service: AdBlue in a Diesel Tank updated: 2026-10-02 --- # Preventing AdBlue in a Diesel Tank in New Botley: Why It Occurs Pause here for a moment when your diesel tank already holds AdBlue in it: ignition off, engine off, then ring 0333 366 0103. Usually, when your engine has not run, it's drained and thoroughly cleaned where your car is around New Botley. Not happened yet? Below, the rest of the page covers the why it takes place and the ways to avoid it for good. ## Why does AdBlue in a diesel car need its own filler? Many modern diesels on the roads about New Botley and Botley carry two liquids, not one. Diesel goes to your motor. Kept in a tank of its own, AdBlue is sprayed into the exhaust gas and cleans it. Each tank has its own filler. Under one flap, next to each other: that's the layout on many motors. On others, AdBlue's filler is beneath the bonnet or in the boot instead. Filling the diesel side at the petrol pump goes on constantly. Rarely filled, AdBlue usually goes in out of a bottle, tipped by someone who must stop and think what filler to use. The mistake lives in that gap. ## AdBlue in the diesel tank around New Botley: how it occurs Seldom is it carelessness: usually three things coincide. Haste follows from the warning. Your car warns you as AdBlue runs low, and an empty tank sends it into limp mode — so the top-up gets done in a rush, before work on a drive off Lamarsh Road, or on the way home in the car park at The Holly Bush. The old car's filler is where your hand goes — yet a rental car, a new car or a company car puts the fillers elsewhere. That is a second thing: an unfamiliar vehicle. A spout-topped bottle finds no resistance at a diesel filler no more than at an AdBlue one. And so the pour, after started, carries on. It's seconds, be it in Osney or bang in the heart of New Botley. ## The AdBlue filler and your diesel filler: telling them apart Look at these before pouring, at a forecourt around New Botley or a drive over in Jericho. A few seconds, that's all. - Where it sits misleads; the cap does not. AdBlue caps are often blue or bear the word "AdBlue" — diesel ones usually don't. - On plenty of vehicles, the size gives it away: AdBlue has the smaller filler neck. - A label inside your fuel flap frequently shows which fuel goes where, on many cars. Check for it. - The handbook shows where it lives if the filler isn't next to your diesel cap: your boot, or under the bonnet. - Whoever had it before will know. Check when you collect a rental or company car — at Oxford's car park, perhaps — rather than when the warning comes on. ## Keeping AdBlue out of your diesel tank when you top up Wherever around Oxfordshire the light comes on, this is a routine for that day. - Turn off once parked — level ground, motor off, and not in a rush beside Earl Street on the verge. - 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 two under a single flap? Then make sure the cap on your diesel side is still closed ahead of 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 — confirm the diesel cap stayed closed the whole time. After that, start the vehicle. Stop there if you find, at step two or three, that you have already poured into the diesel side. Never go on to step five. ## AdBlue in the diesel tank already, around New Botley? Brief list, then. First: your engine stays unstarted. Don't switch your ignition on; on plenty of diesels that alone runs the fuel pump. Don't top up with diesel to dilute it: AdBlue doesn't mix with diesel, it sinks to the bottom of the tank, where the fuel is drawn from. Ask the attendants to help push the car clear of the petrol pump if you are on a forecourt — the BP, the Welcome Break or anywhere else. If you are on your own drive in New Botley, leave the vehicle where it sits. Stop as soon as it is safe and switch off, if your motor has already run. Leave the Wheatley Spur — under 10 miles out of New Botley — at the first junction. Tell us roughly how far it went: a run towards Oxford, under 3 miles away, is a bigger job than a short hop across New Botley. ## When our technicians arrive in New Botley, what happens? We come to your car wherever it has stopped, whether that is outside West Oxford Community Primary School, near Elim Church or on your own drive. Both the work and our quote depend on three answers — which fluid, what quantity, and if it has run — so our technicians ask. You get that price by phone, before anybody sets off. The fuel system is then cleaned thoroughly, once that tank is emptied. Unlike petrol, AdBlue leaves crystals and eats at some fuel-system metals, and none of it clears away by itself. Hence it matters more. Filter flushed or, where it must be, replaced; fresh diesel in; then a check of your vehicle. The motor is started next and tested to be sure it runs smoothly, all before our technicians leave. Most jobs are finished in about half an hour once we arrive, provided the engine hasn't run — and the pumps our engineers use are fine on a busy forecourt yet quiet after dark outside a house. No money in advance; you settle up that day. Afterwards, a VAT invoice and a report from the engineer go to you for your insurer. It is worth checking your policy as the van travels to you: misfuelling cover is included with plenty of policies. ## About New Botley, for a moment New Botley is a suburban area located on the western edge of Oxford, with the River Thames running along its boundary. New Botley sits at an elevation of 59 metres, close to the city centre and nearby places such as Osney and North Hinksey Village. New Botley is characterized by its predominantly terraced housing stock, reflecting its development as a residential area. New Botley is situated approximately 1 mile from Oxford city centre, making it a popular choice for those who work in the city. ## AdBlue drains in New Botley and across Oxfordshire Being a residential suburb, New Botley shares its vans nearby areas — North Hinksey Village, New Osney — all the way through OX postcodes and the wider area beyond. The van reaches you fastest with a postcode starting OX2 0. The vehicle remains where it is. Wherever it sits — beside St Frideswide's Church, in a layby heading to King George's Field, at home — that's where it is emptied. Ring and ask rather than guessing if you're close to a border, or somewhere hard to explain, like the back of West Oxford Community Centre. ## In short, for New Botley people Tip nothing until you have read the cap. Petrol in Diesel drains it on the spot, anywhere around Oxfordshire, if AdBlue has gone in the diesel tank anyway — and so leave it off then phone 0333 366 0103.