AdBlue in a Diesel Tank in Common-y-coed: How It Happens and How to Prevent It
Leave the engine and ignition off and call 0333 366 0103 first — the rest can wait if AdBlue is already in your diesel tank. Usually, if the motor hasn't run, it is emptied and fully cleaned where the car sits in Common-y-coed. Not happened yet? Below, the rest of the page explains the reasons it takes place and the how to prevent it altogether.
AdBlue in a diesel vehicle, and its separate tank
Many newer diesels on the roads around Common-y-coed and Five Lanes carry two liquids, not one. Diesel goes to the motor. The exhaust, not your motor, is where AdBlue ends up: sprayed into the gas to clean them, from its own tank.
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. Diesel gets filled at each filling station visit, week in, week out. Seldom topped up, AdBlue usually comes from a bottle, poured by someone who has to stop and think which filler to use. That gap is where the error lives.
AdBlue in the diesel tank in Common-y-coed: how it takes place
It is hardly ever carelessness. Three things tend to line up.
On a driveway off St Bride's Road before work, or in the car park outside the pub in the village on the way home: that is where the rushed top-up takes place. Why the rush? As AdBlue gets low the car warns you, and if it's gone, limp mode follows.
Unfamiliar vehicles come second, too. Rentals, new cars and company vehicles put their fillers in new places, and habit goes for the cap used on the old one.
Third, the spout fits: a diesel filler or AdBlue one, it slides in just as easily, and after the pour begins, no part stops it. Whether it occurs in St Brides Netherwent or the middle of Common-y-coed, it is the same few seconds.
The AdBlue filler and your diesel filler: telling them apart
A few seconds is all these take — so run through them before you tip anything, on a drive in Vinegar Hill or a forecourt in Common-y-coed.
- Position misleads; the cap does not. AdBlue ones are often blue or bear the word "AdBlue" — diesel ones usually do not.
- Check the size: the smaller neck is, on plenty of motors, the AdBlue one.
- The flap. Look inside your fuel flap for a label. Many motors say there which fuel goes where.
- In your boot or under the bonnet: that is where your filler is if it is not by the diesel cap, and the handbook tells you which.
- The person who drove the car last. On a hire or company car collected from somewhere like the car park outside Severn Tunnel Junction, ask before you leave, not when the light comes on.
Topping up AdBlue without it reaching the diesel tank
A routine for the day the light comes on, wherever in Monmouthshire that is.
- Not in a rush on the side of Bencroft Lane, not on a slope, not with your engine running: park and switch off first.
- Find the AdBlue filler and read the cap. Say "AdBlue" out loud as you unscrew it. It sounds silly and it works.
- If both sit under one flap, check the diesel cap is still closed before you lift the bottle — then leave it on.
- Finish once the tank is topped up or the bottle is empty; until then, tip slowly through its built-in spout.
- Shut the cap, and check again — confirm your diesel filler remained closed throughout. Only then, start the car.
Spot at stage two or three that it's already gone into your diesel side? Then stop right there. Step five is out.
Already put AdBlue in the diesel tank around Common-y-coed?
Don't start your motor: that is how the short order of things starts. Keep your ignition off too, because on many diesels it alone runs the pump. Don't top up with diesel to thin it: AdBlue doesn't mix with diesel, it sinks to the bottom of your tank, where your fuel is pulled from.
If you are on a forecourt, whether it is the BP or the Gulf, ask the attendants to help roll your car away from the petrol pump. Leave it where it is if you're on your own drive in Common-y-coed.
Stop as soon as it is safe and switch off, if the motor has already run. The next exit is the place to come off when you're on the M48, under a mile from Common-y-coed. A short hop across Common-y-coed is a smaller job than a run towards Newport, under 10 miles away, and so tell us about how far it went.
Common-y-coed: what takes place when our technicians turn up
Anywhere the vehicle has stopped, whether outside the local primary school, near St John the Baptist's Church or at home, our van travels to it. We ask what got in, about how much, and if it's run, because the answers determine this work and the price. That price is given over the phone, before any van leaves.
Then that tank is emptied and the fuel system flushed thoroughly. Not like petrol, AdBlue forms crystals and attacks some fuel-system metals, and neither washes away unaided. That is why it counts more. After the filter has been cleaned — or renewed, where needed — clean diesel goes in, and then the vehicle is tested. Before we go, our engineers start it and make sure that it's running properly.
Unrun cars mostly need a half-hour visit after the moment we arrive. The kit is fine on a live filling station, and quiet enough for a driveway late at night. Paying is on the day, not upfront, and you receive the paperwork an insurer wants: an engineer report and a VAT invoice. Before we get there, have a look at your insurance documents; plenty carry cover for misfuelling.
About Common-y-coed, for a moment
Common-y-coed is a coastal locality in Monmouthshire, situated near the city of Newport and overlooking the surrounding countryside. Common-y-coed has a population of around 505 people and is characterised by detached housing. Common-y-coed sits at an elevation of 68 metres, close to nearby places such as St Brides Netherwent and Carrow Hill.
Common-y-coed and Monmouthshire: AdBlue drains across the area
Common-y-coed is a coastal area, and our teams that cover it also work the places around it, Carrow Hill and Knollbury among them, across the NP postcode area. Give a postcode beginning NP26 3, and our van arrives quickest.
Your car remains where it is. A drive, a lay-by on the way to Grange Wood, a side street near Penhow Castle: our technicians drain it where it sits. Awkward to explain, like the back of Llanfihangel Rogiet? By a border? Asking is better than guessing, and so ring.
The short version for Common-y-coed people
Tip no AdBlue until you've read the cap. AdBlue in the diesel tank after all? Leave the vehicle switched off then ring 0333 366 0103; Petrol in Diesel empties it on the spot, throughout Monmouthshire.