--- title: AdBlue in a Diesel Tank Axminster? Read This canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/axminster-devon/ location: Axminster county: Devon latitude: 50.782100 longitude: -2.999410 service: AdBlue in a Diesel Tank updated: 2026-10-15 --- # Preventing AdBlue in a Diesel Tank in Axminster: Why It Happens If AdBlue is already in your diesel tank, stop reading for a moment: leave the motor and your ignition off and ring 0333 366 0103. A drain and a thorough flush, done just where your vehicle stands in Axminster, is normally all it takes if caught before your motor runs. If you're reading before it has happened, the rest of this page is about why it occurs and how to make sure it doesn't. ## AdBlue in a diesel motor: two tanks, two fillers Diesel feeds your engine — but many modern diesels driven around Axminster and Weycroft carry another liquid too. AdBlue's own tank keeps it, and from there it goes to the exhaust, and there spraying treats the fumes. Each tank has its own filler. Some cars keep the AdBlue filler in your boot or under the bonnet; plenty more place both together behind one flap. Diesel goes in at each filling station call-out, again and again. Much less frequently, the AdBlue side gets filled — mostly from a bottle, by a person working out where it goes. That gap is where the error lives. ## How does AdBlue in the diesel tank happen in Axminster? Three things tend to come together, and carelessness is seldom one of them. The warning comes first. As AdBlue runs low the car tells you, and if it runs out completely, the car drops into limp mode. So the top-up is done in a hurry: on a drive off Castle Street before work, or in the car park at Axminster Inn on the way home. Then the car is strange. A hire car, a new car or a company car puts the fillers where your last one didn't, and the hand reaches for the cap it would have used on the old one. Nothing stops the tip once it has started, because a bottle with a spout goes into a diesel filler as easily as an AdBlue one. The bottle fits. The same few seconds settle it, in the middle of Axminster or out in Abbey Gate. ## The AdBlue filler and your diesel filler: telling them apart Before you pour anything, whether on a driveway in Wyke Green or a forecourt around Axminster, check these. They take a couple of seconds. - Blue and marking: an AdBlue cap is frequently blue, or says "AdBlue", where a diesel cap normally does not. Trust the cap, not its position. - On many cars, the size tells: AdBlue gets the smaller filler neck. - The flap. Look inside your fuel flap for a label. Many motors say there which fuel goes where. - Can't see it next to your diesel filler? Then check below the bonnet or inside your boot — the owner's manual says which. - Picking up a hire or company car, say at the car park at the nearest station? Ask the person who drove the car last before leaving, rather than when the light comes on. ## Keeping AdBlue out of your diesel tank when you top up When the light comes on, wherever in Devon, use this routine. - Turn off once parked — flat ground, motor stopped, and never in a rush by West Street at the roadside. - Daft as it sounds, saying "AdBlue" out loud as you unscrew the cap does the trick — after you've found the filler and read it. - If both sit under one flap, check the diesel cap is still closed before you lift the bottle — then leave the vehicle on. - Pour slowly, using the bottle's own spout. Stop when it's full or when the bottle is empty. - Before starting your car, shut the cap and look a second time that your diesel cap was never opened off. Stop there if you find, at step two or three, that you have already poured into the diesel side. Never carry on to step five. ## Axminster: already put AdBlue in the diesel tank? Then the order of things is short. Don't start your motor. On plenty of diesels the ignition alone runs the fuel pump, so don't switch it on. Filling up with diesel will not weaken it: instead, AdBlue drops to the base of that tank, just where the fuel is taken from. If you're at a forecourt, whether it is the Tesco or the Harvest Energy, ask the staff to help roll the car clear of the petrol pump. On your own drive around Axminster? So the car remains where it is. Stop as soon as it is safe and switch off, if your engine has already run. Axminster sits under 15 miles from the M5; on it, use the next 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 Axminster. ## When our engineers arrive in Axminster, what takes place? We come to the vehicle wherever it has stopped, whether that is outside St Mary's Catholic Primary School, Axminster, near The Parish Church of St. Mary the Virgin or on your own drive. What liquid went in, the quantity, and if it ran: we ask since those replies decide both work and price. You get that quote on the phone, before anybody heads out. Your system is then cleaned thoroughly, after your tank is emptied. Not like petrol, AdBlue forms crystals and attacks certain fuel-system metals, and neither washes out unaided. Hence it counts more. Filter cleaned or, if needed, swapped; fresh diesel in; then a check of your vehicle. The engine is fired up next and checked to be sure it runs properly, all before our technicians go. Most jobs are done in roughly half an hour after we get there, provided the engine has not run — and the pumps our engineers use are fine on a busy forecourt yet quiet after dark outside a house. The insurer usually wants the engineer's report and your VAT invoice, and you get both at the end. Payment is on the day, with no deposit. It is worth looking at your insurance as the van travels to you: misfuelling cover is included with plenty of policies. ## About Axminster Axminster is a town situated in the eastern part of Devon, on the River Axe, with a mix of semi-detached housing and other residential properties. Axminster sits at an elevation of around 41 metres, near the edge of the East Devon countryside. Axminster is located near several smaller communities, including Abbey Gate and Millway Rise, and is within commuting distance of Exeter. Axminster has a population of approximately 6898 people, making it a modest-sized town in the South West region. ## AdBlue drains across Devon, Axminster included Throughout EX postcodes, our teams covering Axminster — a riverside town — work the nearby places too, Sector and Millway Rise included. Quickest of all: give a EX13 5 postcode for the van. Moving the vehicle is not necessary. Our technicians drain it where it is — a side street close to Axminster Museum, a lay-by on the way to Jubilee Field, a driveway. If you're near a border, or somewhere hard to explain like the back of Axminster Guildhall, ring and ask rather than guessing. ## The short version for Axminster motorists Always, the cap; then, the pour. If AdBlue has gone in your diesel tank anyway, leave the car off and ring 0333 366 0103. Petrol in Diesel empties it where it waits, anywhere across Devon.