Rosneath: How Does AdBlue End Up in a Diesel Tank, and How Do You Avoid It?
AdBlue already in your diesel tank? In that case set this page aside a moment, keep the ignition and motor off, and ring 0333 366 0103. Caught before your engine runs, it is generally a drain and a thorough flush, done where the car is around Rosneath. Reading in advance? In that case what follows covers why it happens and what to stop it ever happening.
Why does AdBlue in a diesel vehicle need its own filler?
Diesel feeds the motor — yet plenty of modern diesels driven about Rosneath and Portkil carry a second liquid as well. Kept in a tank of its own, AdBlue is fed into your exhaust gas and cleans it.
Each tank has its own filler. On a lot of motors 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 gets filled constantly. Much less often, the AdBlue side is topped up — mostly from a bottle, by someone thinking about where it goes. That gap is where the error lives.
How does AdBlue in your diesel tank happen in Rosneath?
It's hardly ever carelessness. Three things tend to line up.
First, the warning. Low AdBlue brings a warning from your car, and running dry leads to limp mode — so a rushed top-up, perhaps before work off Rosneath Road, or outside Rhu Inn on the way home that evening.
Then, your hand goes for the cap it knew on the old vehicle — because a hire car, a new vehicle or a company car places the fillers somewhere your last one did not.
And the bottle fits. A bottle with a spout goes into a diesel filler as easily as an AdBlue one, so nothing stops the tip once it has started. It's a few seconds, whether out in Stroul or right in the centre of Rosneath.
Telling the AdBlue filler from the diesel filler
A couple of seconds is all the checks take — so check them before you pour anything, on a driveway in Kilcreggan or a forecourt around Rosneath.
- Where it sits can mislead; the cap does not. AdBlue ones tend to be blue or bear the word "AdBlue" — diesel caps normally do not.
- Many motors fit AdBlue the smaller filler of the two.
- The flap. Look inside the fuel flap for a label. Many motors say there which fuel goes where.
- In your boot or under the bonnet: that is where the filler is if it is not by your diesel cap, and the handbook tells you which.
- The person who drove it last. On a hire or company car collected from somewhere like the car park at Helensburgh Central, ask before you leave, not when the light comes on.
AdBlue top-ups that never reach your diesel tank
For the day the light comes on — anywhere it is around Argyll and Bute — a routine to use.
- Pull in on level, engine off, with time to spare — not rushing on the side of Ferry Road.
- Locate the AdBlue filler, check the cap, and speak the word "AdBlue" out loud while you unscrew it. It seems silly. It works.
- The diesel cap stays on. Where both sit under a flap, make sure it is closed before the bottle comes up.
- Gently is best, through the bottle's own spout, until it is full or the bottle is empty.
- Shut the cap, and check again — confirm your diesel filler remained shut throughout. Only then, start your car.
Stop there if you find, at stage two or three, that you've already poured into the diesel side. Stage five is off limits.
Rosneath: already put AdBlue in the diesel tank?
Brief list, then. First: your engine remains off. On many diesels the ignition alone runs the fuel pump, and so don't switch the car on. Filling up with diesel will not thin it: rather than mixing, AdBlue sinks to the base of your tank, just where fuel is drawn from.
At a forecourt — Esso, Shell or another — the attendants will usually help roll the car clear, when you ask. If you are on your own driveway in Rosneath, leave it where it stands.
If the engine has already run, stop as soon as it is safe and switch off. The next exit means the place to leave when you're on the M8, under 15 miles from Rosneath. Tell us about how far it went: a run towards Glasgow, under 25 miles away, is a bigger job than a short hop across Rosneath.
Our arrival in Rosneath, and what takes place next
Outside the local primary school, near St Modan's Parish Church or on your own driveway: wherever the vehicle has stopped, our engineers come to it. Our technicians ask what got in, about how much, and whether it has run, because the replies settle this work and our price. That quote is given over the phone, ahead of any van leaving.
The fuel system is then cleaned thoroughly, after the tank is drained. 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 here than with petrol. The fuel filter is cleaned, or replaced where it needs to be; clean diesel goes in; and the car is tested. After that our engineers fire it up and make sure it runs correctly before we leave.
If the motor hasn't run, most jobs take about half an hour once we are there, using pumps that are fine on a working forecourt and quiet enough to use outside a house after dark. No money upfront; you settle up that day. Afterwards, the VAT invoice and the report from the engineer are handed to you for your insurer. Wrong-fuel cover is part of plenty of insurance policies — so use the wait to check yours.
About Rosneath and where it is
Rosneath is a small coastal village in Argyll and Bute, situated on the shores of the Gareloch at an elevation of around 14 metres. Rosneath lies within a short distance of several nearby communities, including Stroul, Clynder, and Rhu, and is approximately 24 miles from Glasgow. Rosneath has a population of around 770 people, predominantly living in terraced housing. Rosneath is also relatively distant from major cities in England, with London being around 365 miles away.
AdBlue drains around Rosneath, and Argyll and Bute beyond
Being a coastal village, Rosneath shares its vans surrounding places — Clynder, Rhu — right through G postcodes and the wider area beyond. A postcode starting G84 0 gets the van to you fastest.
Moving the vehicle isn't needed. A driveway, a lay-by on the way to Howie Park, a side street close to Princess Louise Hall: our engineers drain the vehicle where it is. Assuming won't help at the back of St Gildas' RC Church, on a boundary, or somewhere awkward to pin down; ring and check.
The short version for Rosneath drivers
Before you pour, read the cap. Even so AdBlue in your diesel tank? Petrol in Diesel can drain it where it is, wherever around Argyll and Bute: switch the car off and ring 0333 366 0103.