--- title: AdBlue in a Diesel Tank Stony Cross: Explained canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/stony-cross-herefordshire-hr1-3/ location: Stony Cross county: Herefordshire latitude: 52.125100 longitude: -2.695010 service: AdBlue in a Diesel Tank updated: 2026-10-16 --- # Avoiding AdBlue in a Diesel Tank in Stony Cross: Why It Occurs Stop reading a minute when your diesel tank already has AdBlue in it: ignition off, motor off, and phone 0333 366 0103. Usually, when the engine hasn't run, it is emptied and thoroughly flushed where the car sits around Stony Cross. Here before the event? In that case the rest explains how it comes about and how to prevent it happening at all. ## Two fillers, two tanks: AdBlue in a diesel vehicle Diesel feeds your motor — yet many current diesels seen about Stony Cross and Fromington carry a second fluid as well. Its own tank keeps it, and from there it is sent to your exhaust, where spraying cleans the fumes. There's a filler for every tank. Other vehicles put the AdBlue filler in your boot or under the bonnet; plenty of others have the two side by side behind one flap. Diesel goes in on every filling station call-out, week in, week out. Someone who has to stop and work out where it goes normally fills the AdBlue side, from a bottle, and much less regularly. It is in that gap that the slip happens. ## Stony Cross: how AdBlue in the diesel tank takes place Three things tend to come together, and carelessness is rarely one of them. To start with, the warning. Low AdBlue triggers a message from the vehicle, and letting it run dry means limp mode — hence a hurried top-up, maybe before work off Rudge Grove, perhaps outside Amberley Arms on the way home that evening. Then, the hand reaches for the cap it knew on the old motor — since a rental car, a new motor or a company car puts the fillers somewhere your last one didn't. Third, the spout fits: diesel filler or AdBlue one, it goes in as readily, and once the tip begins, no part stops it. It's a few seconds, whether in Marden or bang in the heart of Stony Cross. ## Telling the AdBlue filler from your diesel filler Before you pour anything, whether on a drive in Burmarsh or a forecourt in Stony Cross, check these. They take a few seconds. - Check the cap instead of going by position: AdBlue ones are frequently blue or marked "AdBlue", and diesel ones normally are not. - Look at the size: the smaller neck is, on many motors, the AdBlue one. - A label inside your fuel flap often says which fuel goes where, on plenty of motors. Check for it. - Can't find it next to your diesel filler? In that case check beneath the bonnet or inside the boot — the owner's manual will say where. - Collecting a hire or company car, perhaps at the car park at Hereford? Ask the person who drove the car last before you set off, not when the light goes on. ## How to top up without AdBlue in your diesel tank A routine for the day the light comes on, wherever around Herefordshire that is. - Park and switch off. Not on a slope, not with your motor running, and not in a rush on the side of Springfield Close. - 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 the vehicle on. - Using the bottle's own spout, pour slowly — and stop when it is full or the bottle is empty. - Close the cap and check a second time. Make sure your diesel cap was never opened. Only then start your car. Discover at the second or third step that AdBlue went into the diesel tank? That is where you stop. Never go on to step five. ## Stony Cross: already put AdBlue in your diesel tank? What follows is a short order of things, starting with not starting the engine. Keep the ignition off too, since on plenty of diesels it by itself runs the fuel pump. Don't top up with diesel to dilute it: AdBlue doesn't mix with diesel, it sinks to the bottom of the tank, where your fuel is drawn from. The attendants at Murco, Shell or another forecourt will normally help pushing the vehicle clear if you ask. Leave it where it is if you are on your own driveway around Stony Cross. Stop as soon as it is safe then switch off, if your motor has already run. On the M50, under 15 miles from Stony Cross, that means the next junction. Tell us roughly how far it went: a run towards Hereford, under 5 miles away, is a bigger job than a short hop across Stony Cross. ## Stony Cross: what occurs when our engineers get there Our van reaches the vehicle anywhere it has come to rest — your own driveway, near Marden Chapel, or by Marden Primary Academy. Our technicians ask what was put in, roughly how much, and if it's run, because the answers settle the work and our price. That quote is given on the call, ahead of any van leaving. Emptying the tank comes next, then a thorough flush of your system. Unlike petrol, AdBlue leaves crystals and eats at certain fuel-system metals, and none of it washes away by itself. Hence it counts more. Filter cleaned or, where it must be, swapped; clean diesel in; then a test of the vehicle. Before leaving, our engineers fire it up and check that it's running properly. If your engine hasn't run, most 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. You pay on the day, with nothing upfront, and get a VAT invoice and an engineer report for your insurer. Many insurance policies include misfuelling cover, and so it is worth checking yours whilst we are on the way. ## About Stony Cross itself Stony Cross is a suburban area in Herefordshire, situated approximately 4.9 miles from the city of Hereford. Stony Cross sits in a low-lying area at an elevation of around 65 metres, near the villages of Marden and Walkers Green. Stony Cross is characterized by its predominantly detached housing stock, reflecting its residential nature. Stony Cross is located about 117.7 miles west of London, in the West Midlands region. ## Stony Cross and Herefordshire: AdBlue drains across the area Stony Cross is a residential suburb, and the vans that cover it also work the towns around it, Walkers Green and Hawkersland Cross among them, across the HR postcode area. Fastest of all: quote a HR1 3 postcode to our van. Shifting the car is not needed. Draining takes place right there, be it a drive, a street near Laystone Bridge, or a layby on the way to Marden Playing fields. Assuming doesn't help behind War Memorial, on a boundary, or somewhere awkward to describe; ring and ask. ## The short version for Stony Cross people Tip no AdBlue until you have read the cap. AdBlue in the diesel tank regardless? Keep the car switched off and call 0333 366 0103; Petrol in Diesel empties it on the spot, throughout Herefordshire.