--- title: AdBlue in a Diesel Tank Peasedown St John? Read This canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/peasedown-st-john-somerset/ location: Peasedown St John county: Somerset latitude: 51.315690 longitude: -2.426830 service: AdBlue in a Diesel Tank updated: 2026-10-09 --- # How It Occurs and How to Prevent It: AdBlue in a Diesel Tank in Peasedown St John Keep the motor and ignition off and call 0333 366 0103 first — reading can wait when AdBlue is already in your diesel tank. Caught before your engine runs, it's generally a drain and a thorough flush, done where the car is around Peasedown St John. If you're reading before it has happened, the rest of this page is about why it takes place and how to make sure it doesn't. ## AdBlue in a diesel motor: two tanks, two fillers Diesel goes to the engine — yet plenty of modern diesels seen about Peasedown St John and Carlingcott hold another liquid as well. AdBlue goes to your exhaust, where it is sprayed into the gas to fresh it, and it lives in a tank of its own. Each tank has its own filler. On a lot of vehicles the two sit side by side under the same flap; on others the AdBlue filler is in the boot or under the bonnet. The diesel side is filled at the petrol pump all the time. Someone who has to stop and work out where it goes normally fills the AdBlue side, from a bottle, and far less regularly. It's in that gap that the slip lives. ## How AdBlue in your diesel tank takes place around Peasedown St John Three things tend to line up, and carelessness is seldom one of them. Hurry comes from the warning. Your car tells you as AdBlue runs low, and an empty tank puts it into limp mode — so the top-up gets done quickly, before work on a drive off Braysdown Lane, or on the way home in the car park at Wagon and Horses. Then the car is unfamiliar. A hire car, a new motor 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. Third, the bottle goes in: diesel filler or AdBlue filler, it goes in just as easily, and once the tip starts, nothing halts it. Whether it takes place in Hillside or the middle of Peasedown St John, it is the same few seconds. ## The AdBlue filler and your diesel filler: telling them apart Before you tip anything, whether on a driveway in Shoscombe or a forecourt around Peasedown St John, check these. They take a couple of seconds. - The cap. The AdBlue cap is regularly blue, or marked "AdBlue". Your diesel cap usually is not. Read it instead of going by position. - Look at the size: the smaller filler neck is, on many motors, the AdBlue one. - Look inside your fuel flap: plenty of motors carry a label there saying which fuel goes where. - The handbook. If your filler is not by your diesel cap, it is in the boot or under the bonnet, and the handbook says which. - The person who drove it last. On a hire or company car picked up from somewhere like the car park at Oldfield Park, ask before you leave, not when the light comes on. ## How to top up without AdBlue in the diesel tank For the day the light comes on — anywhere it is around Somerset — a routine to follow. - Not in a rush on the side of Greenlands Road, not on a slope, not with the motor running: park then switch off properly. - Find the AdBlue filler and read the cap. Say "AdBlue" out loud as you unscrew it. It sounds daft and it works. - If both sit under one flap, check your diesel cap is still closed before you lift the bottle — and leave it on. - Gently does it, through the bottle's own spout, till it is full or the bottle runs out. - Only then, start your car: close the cap, check a second time, and make sure the diesel cap was never opened. Find at the second or third step that the bottle went in the wrong tank? That is where you stop. Stage five stays off limits. ## Already put AdBlue in the diesel tank in Peasedown St John? Brief order, then. First: the motor remains unstarted. Don't switch the ignition on; on many diesels that alone runs the fuel pump. AdBlue doesn't mix with diesel — it sinks to the bottom of that tank, where the fuel is pulled from — so don't top up with diesel to dilute it. If you are at a forecourt, whether it's the Murco or the Shell, ask the attendants to help push the vehicle clear of the petrol pump. Leave it where it is if you're on your own driveway around Peasedown St John. Already started? Pull over when it is safe, then turn off. The next exit is where to come off when you are on the M32, under 15 miles from Peasedown St John. Roughly how far did it go? Crossing Peasedown St John is less a job than a trip of under 10 miles towards Bath, and so tell us. ## Our arrival around Peasedown St John, and what takes place next Wherever your car has stopped, be it by Peasedown St John Primary School, near Peasedown St John Methodist Church or at home, the van travels to it. What liquid was put in, the quantity, and whether it ran: our engineers ask because those replies set both work and price. That quote is given on the call, ahead of any van leaving. Draining that tank comes next, then a full flush of the fuel 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 with AdBlue than with petrol. The filter cleaned or, where needed, swapped; clean diesel in; and then a test of the car. Before we leave, we start it and confirm that it is running properly. If the engine has not run, the majority of jobs take about half an hour once we are there, using pumps that are safe on a working forecourt and quiet enough to use outside a house at night. The insurer will ask for an engineer's report and your VAT invoice, and you get both once the job is done. Payment is on the day, with no money upfront. It's worth checking your policy while we travel to you: misfuelling cover comes with plenty of policies. ## About Peasedown St John Peasedown St John is a village in Somerset, situated approximately 5.5 miles from the city of Bath, and is characterized by its terraced housing. Peasedown St John sits at an elevation of 164 metres, in a rural area surrounded by nearby places such as Hillside, Lower Peasedown, and Ashgrove. Peasedown St John has a population of around 2696 residents, and is located about 100 miles west of London. Peasedown St John remains a distinct community with its own identity within the wider region. ## Peasedown St John and Somerset: AdBlue drains across the area Throughout BA postcodes, our vans covering Peasedown St John — a rural village — work the surrounding locations too, Ashgrove and Lower Peasedown among them. A postcode starting BA2 8 gets our van to you fastest. Moving your car is not necessary. Anywhere it stands — near Peasedown St John Christadelphian Hall, on a layby heading to Peasedown St John Cricket Club, on a drive — that is where it gets drained. Awkward to pin down, like the back of St. Joseph's Catholic Church? By a county line? Asking beats assuming, so phone. ## The short version for Peasedown St John motorists Always, the cap; after that, the tip. Petrol in Diesel drains it where it stands, anywhere around Somerset, if AdBlue has gone in the diesel tank all the same — so leave the vehicle off then call 0333 366 0103.