How It Happens and How to Prevent It: AdBlue in a Diesel Tank in Cae-pant-tywyll
AdBlue already in your diesel tank? Then put this page aside for now, leave the ignition and motor off, then call 0333 366 0103. In Cae-pant-tywyll, catching it before your motor runs normally means draining and a thorough flush where it stands. Nothing happened yet? Below, the rest of the page covers the reasons it takes place and the how to avoid it for good.
Two fillers, two tanks: AdBlue in a diesel car
Plenty of modern diesels on the roads about Cae-pant-tywyll and Abermorlais carry two liquids, not one. Diesel goes to the motor. AdBlue's own tank keeps it, and from there it goes to your exhaust, and there a spray treats the fumes.
Each tank comes with a filler of its own. On a lot of vehicles the two sit side by side under the same flap; on others the AdBlue filler is in your boot or under the bonnet. At the pump, the diesel side is topped up all the time. The AdBlue side is topped up far less frequently, usually from a bottle, and usually by a person who has to stop and think where it goes. The error lives in that gap.
AdBlue in the diesel tank around Cae-pant-tywyll: how it happens
It is seldom carelessness. Three things tend to line up.
Hurry follows from the warning. The vehicle warns you as AdBlue runs low, and a dry tank puts it into limp mode — so the top-up gets done quickly, before work on a driveway off Brecon Road, or on the way home in the car park outside Grawen Arms.
Unfamiliar motors come next, as well. Hire cars, new vehicles and company motors put their fillers differently, and habit goes for the cap it used on the old one.
Third, the spout fits: a diesel filler or AdBlue one, it goes in just as easily, and after the pour begins, no part stops it. Tydfils well or the middle of Cae-pant-tywyll: it takes the same few seconds either way.
Telling the AdBlue filler from your diesel filler
Check these first, at a forecourt in Cae-pant-tywyll or a driveway over in Georgetown. A few seconds, that's all.
- The cap. The AdBlue cap is commonly blue, or marked "AdBlue". The diesel cap usually isn't. Read it rather than going by position.
- Plenty of vehicles fit AdBlue the smaller neck of the two.
- A label inside your fuel flap often says which fuel goes where, on many motors. Look for it.
- In your boot or under the bonnet: that is where your filler sits if it's not by your diesel cap, and the handbook says which.
- Picking up a hire or company car, perhaps at the car park at Merthyr Tydfil? Check with whoever drove the vehicle last before leaving, rather than when the light goes on.
How to top up without AdBlue in the diesel tank
Wherever around Merthyr Tydfil the light comes on, here is a routine for the day.
- Turn off after you park — level ground, engine stopped, and never in a rush by Sunnybank on the verge.
- Daft as it sounds, saying "AdBlue" out loud as you unscrew the cap does the trick — once you have found the filler and read it.
- Leave the diesel cap on. If both sit under one flap, check your diesel cap is still closed before you lift the bottle.
- Tip slowly, using the bottle's own spout. Stop when it is full or when the bottle is empty.
- Close the cap, then check again — confirm the diesel cap remained shut throughout. After that, start the car.
Discover at the second or third stage that the bottle went into the wrong filler? That's where you stop. Leave out stage five entirely.
Cae-pant-tywyll: already put AdBlue in your diesel tank?
Then the order of things is short. Don't start the motor. The fuel pump starts on plenty of diesels the moment your ignition is switched on — and so keep it off. AdBlue does not mix with diesel — it sinks to the bottom of that tank, where your fuel is drawn from — so do not top up with diesel to dilute it.
If you're at a forecourt, whether it is the Applegreen or the Esso, ask the staff to help roll your car away from the petrol pump. If you are on your own driveway around Cae-pant-tywyll, leave the car where it stands.
Already run? Stop once it is sensible, then switch off. The next junction is the place to leave when you are on the M4, under 25 miles from Cae-pant-tywyll. Tell us roughly how far it went: a run towards Newport, under 25 miles away, is a bigger job than a short hop across Cae-pant-tywyll.
Our arrival around Cae-pant-tywyll, and what takes place next
Wherever the car came to rest, be it by the local primary school, beside Birthplace of Joseph Parry or on your own drive, our van travels to it. Our engineers ask what was put in, about how much, and if it's run, because those replies decide the work and the price. No one heads out before you have had our quote by phone.
After that: draining, then a thorough flush of the whole system. With AdBlue that counts 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. The filter cleaned or, where needed, swapped; fresh diesel in; then a check of your vehicle. We don't go until it has been started and is running correctly.
Most jobs are finished in roughly half an hour once our technicians arrive, provided your motor has not run — and the pumps we use are safe on a busy forecourt and quiet after dark outside a house. Your insurer will ask for an engineer's report and your VAT invoice, and both are yours once this job is done. Payment comes on the day, with no money upfront. Plenty of insurance policies include misfuelling cover, and so it is worth checking yours while we are on the way.
About Cae-pant-tywyll and where it is
Cae-pant-tywyll is a suburban area in Merthyr Tydfil, situated on the riverside at an elevation of 191 metres. Cae-pant-tywyll has a mix of housing types, but is predominantly characterised by terraced homes. Cae-pant-tywyll is located near notable local landmarks such as Tydfils well and The Quar, and is close to the community of Morgan Town. Cae-pant-tywyll is approximately 20 miles from Newport and 140 miles from London.
AdBlue drains around Cae-pant-tywyll and across Merthyr Tydfil
The Quar and Morgan Town are among the places near Cae-pant-tywyll, a residential suburb, that the same teams cover, over CF postcodes. Quickest of all: quote a CF47 8 postcode for the van.
The car stays put. A driveway, a lay-by on the way to Holocaust Remembrance Garden, a side street close to Merthyr Town F.C.: we drain the car where it stands. If you're close to a border, or somewhere hard to explain like the back of Penydarren Roman fort, ring and ask instead of guessing.
In short, for Cae-pant-tywyll drivers
First, the cap; after that, the tip. AdBlue in your diesel tank regardless? Leave the car switched off then ring 0333 366 0103; Petrol in Diesel drains it where it stands, across Merthyr Tydfil.