Danygrug: How Does AdBlue End Up in a Diesel Tank, and How Do You Prevent It?
If AdBlue is already in your diesel tank, stop reading for a moment: leave your engine and the ignition off and phone 0333 366 0103. In Danygrug, catching it before the motor turns normally leaves a drain and a thorough flush on the spot. Reading before the event? Then what follows explains why it comes about and how to stop it ever happening.
AdBlue in a diesel car: two tanks, two fillers
Not one fluid but two: that is what plenty of newer diesels near Danygrug and Dardy carry, with diesel for the engine. AdBlue goes to the exhaust, where it is sprayed into the gas to clean it, and it lives in a tank of its own.
Each tank has one 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. Filling the diesel side at the pump happens all the time. Far less often, the AdBlue side gets topped up — normally from a bottle, by a person thinking about where it goes. That gap is where the error lives.
How AdBlue in your diesel tank occurs around Danygrug
Carelessness seldom explains it. Instead is three things lining up together.
On a driveway off Derwen Fawr before work, or in the car park outside The Swan Inn heading home: that is where the hurried top-up takes place. What is the reason for the rush? As AdBlue gets low your car tells you, and once it is gone, limp mode kicks in.
Then the vehicle 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.
Nothing stops the tip once it has started, since a bottle with a spout goes into a diesel filler as easily as an AdBlue one. The bottle fits. Ffynnonau or the heart of Danygrug: it takes the same few seconds in both.
How to tell the AdBlue filler from the diesel one
A few seconds is all these take — so check them before you tip anything, on a drive in Ffawyddog or a forecourt in Danygrug.
- Position misleads; the cap does not. AdBlue ones tend to be blue or carry the word "AdBlue" — diesel caps normally do not.
- Look at the size: the smaller neck is, on many motors, the AdBlue one.
- Look inside the fuel flap: many motors carry a label there showing which fuel goes where.
- The handbook shows where it is when the filler isn't next to the diesel cap: the boot, or under the bonnet.
- Ask the person who drove it last — before you leave, not when the light comes on — when you pick up a hire or company car from somewhere like the car park at Abergavenny.
Keeping AdBlue out of the diesel tank when you top up
Wherever around Powys the light comes on, here is a routine for that day.
- Turn off once parked — flat ground, motor off, and not in a rush by Mynydd Gerdd at the roadside.
- Locate the AdBlue filler, check the cap, and say the word "AdBlue" out loud while unscrewing it. It sounds daft. It does the trick.
- The diesel cap stays on. Where both share a flap, confirm it's shut before lifting the bottle.
- Slowly is best, 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 your diesel cap was never opened.
Discover during the second or third stage that the bottle went into the diesel filler? That is where you stop. Never carry on to stage five.
AdBlue in the diesel tank already, in Danygrug?
Don't start your motor: that's how the short order of things starts. Keep the ignition off as well, because on plenty of diesels it by itself runs the pump. Topping up with diesel will not dilute it: rather than mixing, AdBlue sinks to the bottom of that tank, just where the fuel is taken from.
If you are on a forecourt, whether it's the Asda Express or the Gulf, ask the staff to help push the vehicle away from the petrol pump. Your own drive around Danygrug is the place it should stay.
If your motor has already run, stop as soon as it is safe and switch off. On the M4, under 25 miles from Danygrug, that means the next junction. About how far did it go? Hopping across Danygrug is smaller work than a run of under 25 miles towards Newport, so tell us.
When our technicians arrive around Danygrug, what happens?
Our van comes to your car anywhere it has come to rest — your own driveway, near Webbs of Crickhowell, or by the local primary school. Both the work and our price rest on three replies — what fluid, what amount, and whether it's run — so our engineers ask. The quote comes over the phone, ahead of any van leaving.
Emptying the 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, and so it doesn't wash out on its own — which is why that matters more with AdBlue than with petrol. Once your filter is cleaned — or replaced, where required — clean diesel is added, and then your car is tested. We don't leave until it has been fired up and is running properly.
Unrun vehicles usually mean a half-hour job from arrival. The equipment is fine on a live filling station, and quiet enough for a driveway after dark. Nothing in advance; you settle up that day. At the end, the VAT invoice and the report from the engineer go to you for your insurer. Wrong-fuel cover is included in plenty of insurance policies — so make use of the wait to look at yours.
About Danygrug
Danygrug is a suburban area situated on the riverside in Powys, Wales, with a mix of detached housing and a population of around 1355 residents. Danygrug sits at an elevation of 125 metres, close to nearby places such as Ffynnonau, Crickhowell, and Legar. Danygrug is located near the city of Newport, which is approximately 19.9 miles away. Danygrug is also within a reasonable distance from London, being around 131 miles west of the capital.
Danygrug and Powys: AdBlue drains across the area
Over NP postcodes, our vans covering Danygrug — a residential suburb — work the nearby places too, Legar and Crickhowell included. A postcode starting NP8 1 gets the van to you fastest.
The vehicle stays where it is. The drain happens on the spot, whether a driveway, a street by Memorial Fountain, or a lay-by on the way to Coed Cefn. If you're close to a boundary, or somewhere hard to explain like the back of The Corn Exchange, ring and ask instead of guessing.
In short, for Danygrug motorists
Read the cap before you pour. AdBlue in the diesel tank after all? Leave the vehicle switched off then call 0333 366 0103; Petrol in Diesel empties it on the spot, across Powys.