--- title: Explained: AdBlue in a Diesel Tank Romsey Town canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/romsey-town-cambridgeshire/ location: Romsey Town county: Cambridgeshire latitude: 52.201940 longitude: 0.147230 service: AdBlue in a Diesel Tank updated: 2026-10-09 --- # AdBlue in a Diesel Tank in Romsey Town: Why It Occurs and How to Avoid It Stop here for a moment if the diesel tank already has AdBlue in it: ignition off, motor off, and phone 0333 366 0103. Usually, when your engine has not turned, it is drained and thoroughly purged where the vehicle is around Romsey Town. Reading in advance? Then what follows explains how it happens and what to prevent it happening at all. ## AdBlue in a diesel vehicle, and its separate tank Many modern diesels on the roads about Romsey Town and Chesterton carry two liquids, not one. Diesel goes to the engine. AdBlue goes to the exhaust, where it is sprayed into the gas to fresh it, and it lives in a tank of its own. Every tank has a filler of its own. Under one flap, next to each other: that is the arrangement on a lot of vehicles. On others, AdBlue's filler sits beneath the bonnet or in your boot instead. Diesel gets filled on every forecourt call-out, week in, week out. The AdBlue side is fuelled far less regularly, usually from a bottle, and normally by someone who has to stop and think where it goes. It is in the gap that the slip happens. ## AdBlue in the diesel tank in Romsey Town: how it happens Three things tend to line up, and carelessness is seldom one of them. On a drive off Cromwell Road before work, or in the car park outside The Empress on the way home: that's where the rushed top-up happens. Why the rush? As AdBlue gets low the car warns you, and if it's gone, limp mode follows. Then, the hand reaches for the cap it would have used on the old vehicle — because a hire car, a new car or a company car puts the fillers where your last one didn't. Lastly, the bottle goes in: a diesel filler or AdBlue filler, it slides in just as easily, and once the tip begins, no part halts it. It takes seconds, whether in Coldhams Common or bang in the centre of Romsey Town. ## The AdBlue filler and your diesel filler: telling them apart Check these first, at a forecourt in Romsey Town or a driveway out in Cherry Hinton. Seconds, that's all. - The cap. The AdBlue cap is frequently blue, or marked "AdBlue". Your diesel cap normally is not. Read it instead of going by position. - The size. On many vehicles the AdBlue filler neck is the smaller of the two. - Look inside the fuel flap: many cars have a label there showing which fuel goes where. - Cannot see it next to the diesel filler? Then check below the bonnet or in the boot — the handbook says which. - The person who drove the vehicle last. On a hire or company car collected from somewhere like the car park outside Cambridge, ask before you leave, not when the light comes on. ## AdBlue top-ups that never reach your diesel tank When the light comes on, wherever in Cambridgeshire, use this routine. - Park then switch off. Not on a slope, not with the motor running, and not in a rush on the side of Catharine Street. - Silly as it sounds, speaking "AdBlue" aloud while you unscrew the cap works — after you've found the filler and read it. - Leave your diesel cap on. If both sit under one flap, check the diesel cap is still closed before you lift the bottle. - Stop when that tank fills or the bottle is empty; until then, tip gently through the own spout. - Shut the cap, and check again — confirm your diesel cap stayed closed the whole time. Only then, start the vehicle. Find at step two or three that it has already gone into the diesel side? Then stop just there. Skip stage five altogether. ## Romsey Town: already put AdBlue in your diesel tank? Short order, then. Top of that: your engine stays unstarted. Leave your ignition off as well, since on plenty of diesels it alone runs your 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're on a forecourt, whether it's the Sainsbury's or the Camgas, ask the staff to help push your car away from the pump. Leave it where it is if you're on your own driveway around Romsey Town. When the motor has run by now, stop safely and turn it off. The next junction is where to come off when you are on the M11, under 5 miles from Romsey Town. About how far did it go? Crossing Romsey Town is smaller a job than a trip of under 3 miles towards Cambridge, so say. ## Our arrival around Romsey Town, and what happens next Anywhere the car came to rest, whether outside St Philip's CofE Aided Primary School, beside Ross Street Community Centre or at home, our van comes to it. What liquid went in, the quantity, and if it ran: our engineers ask since the replies set both work and price. On the phone call itself, you are told the quote — before anything else. Then the tank is emptied and the fuel system rinsed thoroughly. 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 matters more here than with petrol. After the filter has been flushed — or renewed, if needed — fresh diesel is added, and then your car is tested. We do not go until it has been started and is running correctly. Using pumps fine on a working forecourt and quiet enough to use outside a house at night, most jobs in which the motor hasn't run take roughly half an hour after our technicians arrive. No money upfront; you settle up on the day. At the end, a VAT invoice and a report from the engineer are handed to you for the insurer. While we travel, take a look at your insurance documents; many include cover for misfuelling. ## About Romsey Town, for a moment Romsey Town is a suburban area located near the city of Cambridge in Cambridgeshire, sitting at an elevation of around 14 metres above sea level. Romsey Town is characterised by its predominantly terraced housing and is situated close to nearby places such as Coldhams Common and Newtown. Romsey Town is also just over a mile from the centre of Cambridge, making it a popular residential area. Romsey Town has a population of approximately 10,582 people. ## AdBlue drains in Romsey Town and across Cambridgeshire Newtown and Cambridge are among the places near Romsey Town, a residential suburb, that the same vans cover, over CB postcodes. Quickest of all: give a CB1 3 postcode to our van. Your car does not need to move. A driveway, a lay-by on the way to Romsey Recreation Ground, a side street near Octospa (Dinky Door 12): we drain the car where it stands. Ring and ask rather than guessing if you're close to a border, or somewhere hard to describe, like the back of S. ## For Romsey Town people, the short version Before you pour, read the cap. AdBlue in your diesel tank after all? Keep it off and phone 0333 366 0103; Petrol in Diesel empties it on the spot, throughout Cambridgeshire.