--- title: Explained: AdBlue in a Diesel Tank Stoke Fleming canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/stoke-fleming-devon/ location: Stoke Fleming county: Devon latitude: 50.324460 longitude: -3.599290 service: AdBlue in a Diesel Tank updated: 2026-10-17 --- # Preventing AdBlue in a Diesel Tank in Stoke Fleming: Why It Occurs Stop reading a minute when your diesel tank already holds AdBlue in it: ignition off, engine off, then phone 0333 366 0103. Caught before your engine runs, it's normally a drain and a thorough flush, done where the vehicle is in Stoke Fleming. If you are reading before it has happened, the rest of this page is about why it happens and how to make sure it does not. ## AdBlue in a diesel motor: two tanks, two fillers Many modern diesels on the roads around Stoke Fleming and Ash carry two liquids, not one. Diesel goes to your engine. Its own tank keeps it, and from there it goes to your exhaust, and there spraying treats the gas. Each tank has one filler of its own. Plenty of motors share a single flap for both, while others put the AdBlue filler to your boot or under the bonnet. The diesel side is fuelled at the pump all the time. Rarely filled, AdBlue normally goes in from a bottle, tipped by someone who must stop and think what filler it needs. The error lives in that gap. ## How AdBlue in the diesel tank happens around Stoke Fleming Carelessness rarely causes it. Instead is three things lining up together. On a driveway off Church Road before work, or in the car park outside The Green Dragon on the way home: that is where the hurried top-up happens. What is the reason for the rush? As AdBlue gets low the vehicle tells you, and once it's empty, limp mode kicks in. The old car's filler is where your hand reaches — but a rental car, a new motor or a company car keeps the fillers elsewhere. That is a second thing: a strange car. A spouted bottle meets no resistance at a diesel filler any more than at an AdBlue one. So the tip, once started, carries on. Whether it occurs in Bowden or the middle of Stoke Fleming, it is the same few seconds. ## Telling the AdBlue filler from the diesel filler Before you pour anything, whether on a driveway in Kingswear or a forecourt around Stoke Fleming, check these. They take a few seconds. - Position can mislead; the cap doesn't. AdBlue caps are often blue or bear the name "AdBlue" — diesel ones usually don't. - Many cars give AdBlue the smaller filler of the two. - Lift the filler flap and look for a label — many cars show which goes in which filler right there. - The handbook shows where it lives when the filler isn't next to your diesel cap: the boot, or under the bonnet. - Picking up a hire or company car, perhaps at the car park outside Paignton? Check with whoever drove it last before you set off, rather than when the light comes on. ## AdBlue top-ups that never reach the diesel tank The day the light comes on, anywhere across Devon, use this routine. - Park and switch off. Not on a slope, not with the engine running, and not in a rush on the side of Chapel Lane. - Say "AdBlue" out loud as you unscrew the cap, after finding the AdBlue filler and reading it. Daft, perhaps, but it works. - Leave your diesel cap on. If both sit under one flap, check your diesel cap is still closed before you lift the bottle. - Pour slowly, using the bottle's own spout. Stop when it is full or when the bottle is empty. - Only then, start your car: close the cap, check a second time, and make sure the diesel cap was never opened. Stop there if you find, at stage two or three, that you have already poured into the diesel side. Do not go on to step five. ## Stoke Fleming: already put AdBlue in your diesel tank? The short order of things, beginning with not starting your engine. On many diesels your ignition alone runs the fuel pump, and so don't switch the car on. Diluting it with extra diesel fails, because AdBlue sinks to the base rather than blending — and that is where the fuel is sucked from. At a forecourt — Sainsbury's, BP or any other — the staff will usually help roll the vehicle clear, if you ask. Leave it where it is if you are on your own drive around Stoke Fleming. Stop as soon as it is safe then switch off, if your engine has already run. On the M5, under 25 miles from Stoke Fleming, that means the next exit. A short hop across Stoke Fleming is a smaller job than a run towards Plymouth, under 25 miles away, so tell us about how far it went. ## When our engineers arrive around Stoke Fleming, what occurs? Our van reaches your car anywhere it has come to rest — your own drive, near St Peter's, or outside Stoke Fleming Community Primary School. The answers decide the work and the price, so our engineers ask what got in, roughly how much, and if it's run. The price is given on the call, before any van leaves. Then the tank is drained and the fuel system flushed thoroughly. AdBlue crystallises and is corrosive to some of the metals in a fuel system, and so it does not wash out on its own — which is why that counts more with AdBlue than with petrol. The filter is cleaned, or replaced where it needs to be; fresh diesel goes in; and your car is tested. After that we fire it up and check it runs properly before we leave. Using pumps fine on a working forecourt and quiet enough to use outside a house at night, most jobs in which the engine hasn't run need roughly half an hour once we arrive. Paying happens on the day, not upfront, and you receive the documents your insurer wants: an engineer report and a VAT invoice. Wrong-fuel cover is part of plenty of insurance policies — so make use of the wait to look at yours. ## About Stoke Fleming Stoke Fleming is a coastal village in Devon, situated near the towns of Dartmouth and Totnes, with Strete and Bowden nearby. Stoke Fleming sits on the southern slopes of a hill at around 87 metres, overlooking the sea. Stoke Fleming has a mix of old and new housing, but detached homes are the predominant type, reflecting its appeal as a residential location. Stoke Fleming remains a small, quiet community with a strong sense of local identity. ## AdBlue drains around Stoke Fleming, and Devon beyond Over TQ postcodes, our teams that cover Stoke Fleming — a coastal village — work the nearby locations too, Warfleet and Strete among them. Our van reaches you fastest with a postcode starting TQ6 0. No need to shift the vehicle. Our engineers drain it where it is — a side street close to Stoke Fleming Village Hall and Library, a lay-by on the way to Blackpool Valley Gardens, a driveway. If you are close to a border, or somewhere hard to explain like the back of Dartmouth Leisure Centre, ring and ask rather than assuming. ## Stoke Fleming drivers: the short version First, the cap; then, the tip. Petrol in Diesel drains it where it stands, anywhere around Devon, if AdBlue has gone in the diesel tank all the same — and so leave it off then ring 0333 366 0103.