Why It Happens and How to Prevent It: AdBlue in a Diesel Tank in Cookstown
Keep your engine and ignition off then call 0333 366 0103 first — the rest can wait if AdBlue is already in your diesel tank. Caught before the engine runs, it is generally a drain and a thorough flush, done where your car is in Cookstown. Nothing happened yet? Below, the page covers the why it happens and the ways to prevent it altogether.
Two fillers, two tanks: AdBlue in a diesel car
Many modern diesels on the roads about Cookstown and Sandholes carry two liquids, not one. Diesel goes to the engine. Your exhaust, not the engine, is where AdBlue goes: dosed into the fumes to clean them, from its own tank.
Each tank has its own filler. Under one flap, next to each other: that's the layout on a lot of vehicles. Elsewhere, AdBlue's filler sits beneath the bonnet or in the boot instead. Filling your diesel side at the petrol pump happens constantly. The AdBlue side is filled far less often, usually from a bottle, and usually by a person who has to stop and think where it goes. The error lives in that gap.
How AdBlue in your diesel tank occurs in Cookstown
It's seldom carelessness. Three things tend to line up.
To start with, the warning. Low AdBlue brings a message from your car, and running out leads to limp mode — so a hurried top-up, maybe before work off B842, or outside the pub in the village on the way home after work.
The old car's cap is where the hand goes — yet a rental car, a new vehicle or a company car keeps the fillers elsewhere. That's the second factor: an unfamiliar vehicle.
And the bottle fits. A bottle with a spout goes into a diesel filler as easily as an AdBlue one, and so nothing stops the pour once it has started. It's seconds, be it in Tullywiggan or right in the heart of Cookstown.
Telling the AdBlue filler from the diesel filler
Before you tip anything, whether on a drive in Moneymore or a forecourt around Cookstown, check these. They take a few seconds.
- Blue and marking: an AdBlue cap is regularly blue, or says "AdBlue", where a diesel cap normally does not. Trust the cap, not its position.
- Many vehicles fit AdBlue the smaller filler of the two.
- Lift the filler flap and check for a label — plenty of vehicles mark which goes in each inlet right there.
- Can't find it beside your diesel filler? In that case check below the bonnet or in your boot — the handbook says which.
- Picking up a hire or company car, say at the car park outside the nearest station? Ask whoever drove it last before leaving, rather than when the light comes on.
Keeping AdBlue out of your diesel tank when you top up
The day the light comes on, wherever in County Tyrone, use this routine.
- Stop on level, motor off, with time to spare — never hurried on the side of Dunaverty Court.
- Find the AdBlue filler and read the cap. Say "AdBlue" out loud as you unscrew it. It sounds daft and it works.
- The diesel cap remains on. When both share a flap, confirm it's shut before the bottle comes up.
- Slowly does it, through the bottle's own spout, until it is full or the bottle runs out.
- Only after that, start the car: close the cap, check a second time, and make sure the diesel cap was never opened.
If at step two or three you find you have already poured into your diesel side, stop there. Step five is off limits.
Already put AdBlue in your diesel tank around Cookstown?
Don't start the engine: that's where the short order of things begins. Leave the ignition off as well, because on many diesels it alone starts your pump. Do not 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 sucked from.
At a forecourt — the nearest petrol station, another forecourt nearby or any other — the staff will usually help roll the car clear, when you ask. If you're on your own driveway in Cookstown, leave it where it is.
If the engine has already run, stop as soon as it is safe then switch off. On the M77, over 50 miles from Cookstown, that means the next exit. About how far did it go? Crossing Cookstown is less a job than a run of under 25 miles to Armagh, and so say.
When our engineers get there around Cookstown, what takes place?
We come to your car wherever it has stopped, whether that's outside the local primary school, close to the centre or on your own drive. Both the work and our price depend on three replies — what liquid, what quantity, and if it has run — so our technicians ask. That quote comes over the phone, ahead of any van leaving.
Then the tank is drained and the system purged thoroughly. With AdBlue that matters more than with petrol: it crystallises and is corrosive to some of the metals in a fuel system, and so it does not wash out on its own. Filter flushed or, if needed, replaced; clean diesel in; then a check of the car. The engine is fired up next and tested to confirm it runs smoothly, all before our engineers go.
Most jobs are done in roughly half an hour once we get there, as long as the engine hasn't run — and the pumps we use are safe on a live forecourt and quiet after dark outside a house. You pay on the day, with nothing upfront, and get a VAT invoice and an engineer report for your insurer. Before we get there, take a look at your insurance documents; many carry cover for misfuelling.
About Cookstown itself
Cookstown is a town in County Tyrone, situated in an inland area of Northern Ireland at an elevation of 69 metres. Cookstown lies near several small villages, including Tullywiggan, Tullyhogue, and Drummullan, and is approximately 20 miles from the city of Armagh. Cookstown has a population of around 11581 people, predominantly living in semi-detached housing. Cookstown is located about 349 miles northwest of London, making it a significant urban centre in the region.
AdBlue drains in Cookstown and across County Tyrone
Tullyhogue and Drummullan are among the towns around Cookstown, a town, that the same teams cover, throughout BT postcodes. The van gets to you fastest with a postcode starting BT80 8.
Your car doesn't need to shift. Draining takes place on the spot, whether a drive, a street near a street just off the centre, or a layby towards the green space at the edge of the village. Ring and ask instead of assuming if you're near a border, or somewhere hard to explain, like the back of the far end of the built-up part.
Cookstown motorists: the short version
Always, the cap; then, the tip. Even so AdBlue in the diesel tank? Petrol in Diesel will drain it wherever it is, anywhere in County Tyrone: switch the car off and ring 0333 366 0103.