--- title: AdBlue in a Diesel Tank Puddletown? Read This canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/puddletown-dorset/ location: Puddletown county: Dorset latitude: 50.747970 longitude: -2.345530 service: AdBlue in a Diesel Tank updated: 2026-10-27 --- # Preventing AdBlue in a Diesel Tank in Puddletown: Why It Happens Leave the engine and ignition off and phone 0333 366 0103 now — the rest can wait if AdBlue is already in your diesel tank. Around Puddletown, catching it before your motor turns normally means a drain and a thorough flush where it stands. Reading before the event? In that case what follows explains how it happens and how to stop it ever happening. ## Two fillers, two tanks: AdBlue in a diesel car Diesel feeds your motor — but many modern diesels driven around Puddletown and Tincleton hold another fluid as well. AdBlue goes to the exhaust, where it is sprayed into the gas to clean it, and it lives in a tank of its own. Each tank has its own filler. Many of cars have a single flap for both, while some move the AdBlue filler to the boot or under the bonnet. Filling the diesel side at the pump happens constantly. Much less often, the AdBlue side gets filled — mostly from a bottle, by a person thinking about where it goes. The slip lives in that gap. ## Puddletown: how AdBlue in your diesel tank happens Seldom is it carelessness: usually three things line up. 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 driveway off Mill Street before work, or in the car park outside The Blue Vinny on the way home. Unfamiliar cars come second, as well. Hire cars, new motors and company cars place their fillers in new places, and habit reaches for the cap used on the old one. A spouted bottle meets no obstacle at a diesel filler any more than at an AdBlue one. And so the tip, once begun, carries on. It takes seconds, whether out in Athelhampton or right in the heart of Puddletown. ## Telling the AdBlue filler from the diesel filler Look at these first, at a forecourt in Puddletown or a driveway out in Tolpuddle. A few seconds, that's all. - Blue and marking: an AdBlue cap is commonly blue, or says "AdBlue", where a diesel cap normally does not. Trust the cap, not its position. - Look at the size: the smaller neck is, on many vehicles, the AdBlue one. - The flap. Look inside your fuel flap for a label. Plenty of vehicles say there which fuel goes where. - In your boot or under the bonnet: that is where your filler sits if it is not by the diesel cap, and the handbook says which. - Collecting a hire or company car, perhaps at the car park at Moreton (Dorset)? Ask whoever drove it last before you set off, rather than when the light goes on. ## Topping up AdBlue without it reaching your diesel tank On the day the light comes on — anywhere you are across Dorset — a routine to use. - Pull in somewhere level, engine off, with time to spare — never hurried on the side of High Street. - Daft as it sounds, speaking "AdBlue" out loud as you unscrew the cap works — once you've located your filler and read the cap. - If both sit under one flap, check your diesel cap is still closed before you lift the bottle — and leave it on. - Using the bottle's own spout, tip slowly — and stop when it's full or the bottle is empty. - Only then, start the car: close the cap, check a second time, and make sure your diesel cap was never opened. Discover at the second or third step that the bottle went into the wrong filler? That is where you stop. Stage five is off limits. ## Puddletown: already put AdBlue in your diesel tank? Short order, then. First: the engine stays unstarted. The fuel pump runs on plenty of diesels the moment your ignition goes on — and so keep it off. Filling up with diesel will not weaken it: instead, AdBlue sinks to the base of the tank, just where fuel is drawn from. The staff at Shell, BP or another forecourt will usually help to push the car clear if asked. Your own driveway around Puddletown is the place it stays. Where your motor has run already, stop somewhere safe and turn the vehicle off. The next exit is where to leave when you are on the M27, under 50 miles from Puddletown. Distance matters — a short hop across Puddletown makes a smaller job than driving under 50 miles to Salisbury — so tell us about how far it went. ## When our technicians get there around Puddletown, what takes place? By Puddletown Church of England First School, near Puddletown Library or on your own drive: wherever the vehicle has stopped, our engineers come to it. What liquid went in, the quantity, and whether it ran: our engineers ask because those answers set the work and quote. On the call itself, you hear the quote — before anything else. Next: a drain, then a full flush of the entire system. With AdBlue that matters more than with petrol: it crystallises and is corrosive to some of the metals in a fuel system, and so it doesn't wash out on its own. After the fuel filter has been cleaned — or replaced, where needed — clean diesel is added, and finally your car gets tested. Before we leave, our technicians start the engine and make sure that it's running properly. With pumps safe on a working forecourt and quiet enough for use outside a house at night, most jobs in which your motor has not run take roughly half an hour once our technicians are there. Nothing in advance; you settle up that day. At the end, a VAT invoice and the report from the engineer are handed to you for your insurer. Plenty of insurance policies include misfuelling cover, so it's worth checking yours whilst we're on the way. ## About Puddletown Puddletown is a village in Dorset, situated on the River Piddle, with a mix of semi-detached housing and other types of homes. Puddletown sits at an elevation of 64 metres, near the villages of Athelhampton and Burleston. Puddletown is located in the South West region of England, approximately 109.5 miles from London. Puddletown remains a small riverside community with a population of around 1193 people. ## AdBlue drains across Dorset, Puddletown included Being a village, Puddletown has the same vans as surrounding areas — Burleston, Ilsington — right through DT postcodes and the wider area beyond. A postcode starting DT2 8 gets the van to you fastest. The car doesn't need to shift. Our technicians drain it where it is — a side street close to Puddletown Village Hall, a lay-by on the way to Little Knoll Copse, a driveway. Tricky to pin down, like the back of Church Room? Close to a border? Checking beats guessing, and so phone. ## For Puddletown motorists, the short version Before you tip, read the cap. If AdBlue has gone in the diesel tank anyway, leave the vehicle off and call 0333 366 0103. Petrol in Diesel clears it where it sits, anywhere in Dorset.