Don't Start It: AdBlue in a Diesel Tank in Garth
Motor off, ignition off: that's where you begin if AdBlue has gone into your diesel tank. Water with urea mixed in it: that's AdBlue. Unlike fuel, it neither ignites nor mixes, and nothing happens till your engine pulls it round. If the motor has not run yet, AdBlue in a diesel tank is usually emptied and carefully cleaned where the car sits in Garth. Nothing comes before ringing 0333 366 0103.
Those opening minutes: AdBlue in the diesel tank around Garth
Things to do:
- Keys out — that way nobody can switch anything on.
- Put the hazards on if you are at all close to moving traffic.
- Which product, and about what amount? Hang on to the bottle or your receipt, and we can know.
- Tell us a postcode starting LL57 2, or whatever street is closest, and our van reaches you directly — so ring wherever you are.
Don't do these:
- No starting the engine — not briefly, not to reposition the car.
- Your ignition remains off: on lots of diesels, turning it on is enough to run your pump.
- Pouring in extra diesel doesn't help: AdBlue settles out rather than blending.
- Even a short way down Castle View Terrace is too far to drive it.
- Do not try to drain the vehicle yourself at the kerbside.
Get the attendants to help you move your car off the pumps if you're on a forecourt around Garth, whether it's the BP or elsewhere. If you're on your own drive, leave the car precisely where it stands.
AdBlue in a diesel tank: what it does
Meant for your exhaust, AdBlue has no place in your engine. Kept in a dedicated tank, it's squirted into the exhaust stream to clean the fumes. No part inside an injection pump is made for this liquid — and no part of that was intended to go that way.
It doesn't combine. Once it's tipped into a tank of diesel, AdBlue behaves not at all like diesel. Heavier than diesel, it sinks and collects underneath it — the same place the intake draws from. Easiest of all: one that had AdBlue in Maesgeirchen last night and has not been started since. The liquid waits at the foot of the tank, untouched — though it would be first through if the engine starts, before any diesel at all.
After it is drawn in, the damage takes two forms. It attacks certain metals used in fuel components, working on any part it reaches till it is cleared completely. And when the water evaporates, the urea turns into crystals that block filters and lodge in tiny channels. A car left standing in Garth with AdBlue already in its lines is worse by the morning; one with AdBlue only in its tank is not. Diesel protects the injection pump and each injector as it passes; water offers no lubrication, and that is a second kind of harm.
AdBlue in a diesel: why it's regularly worse than petrol
Put petrol in a diesel at the Asda and you have a fault of thin fuel. It mixes with the diesel, and whilst it is in your tank it causes no damage; the harm comes from running your engine on it.
AdBlue in a diesel is an issue of the wrong substance altogether. It doesn't burn, so it cannot just be run through. Deposits and corrosion remain through the next fill, and AdBlue splits again out of your diesel, and so thinning it can't work. That is why the flush matters more, and trying your engine "to see" costs more with AdBlue than almost any other mistake — in Llandegfan or the centre of Garth equally.
As with petrol, there's good news. Emptying a tank is the simplest part on a fuel system, and with no running, the AdBlue stays in it — anywhere across Gwynedd the vehicle sits.
How AdBlue ends up in a diesel tank around Garth
In dim light, two caps side by side — the AdBlue cap and the diesel cap, occasionally behind a single flap — may appear the same. Nobody intends it; plenty of layouts allow it. Mostly it occurs with a bottle bought on the way home and poured in on the driveway, not at the pump.
It tends to take place in a few familiar ways. Hurrying, outside the local primary school, after a warning lamp came on during the school run, someone tops up the car. Near Edge Hill, someone tips a container in on that drive after work. One more pattern: darkness, a pub car park by Ship Launch, and a driver using that flap for the first time.
It crops up most in a rental, a new vehicle, a company vehicle, or the spare car in a family with one of each fuel types — the vehicles drivers use least. Same mistake, an identical first response — keep it off — anywhere you happen to be around Garth or the remainder of Gwynedd.
Garth: started the motor with AdBlue in the diesel tank?
Then the AdBlue has left that tank. It's been sucked through the fuel filter and your lines, and if the engine ran for any time, it has got to your high-pressure pump and the fuel injectors.
Perhaps coming back from Roman Camp, or part way across Garth, the engine may run rough, smoke, drop power, flash the dash or stall. No starting it again to test: stop when safe, then turn it off. Each start pulls more of it through.
On the Moreton Spur, under 50 miles from Garth, the first junction is where to leave, and anywhere sensible is where to park — not carrying on.
Every mile pushes the AdBlue further in. That is why crossing Garth to park near Canolfan Gymuned Garth / Garth Community Centre and a drive of under a mile towards Bangor are such separate jobs. Roughly how far had it come? Tell us.
Once the motor has been run, the flush includes more, and all of it is done where the car has come to a stop. Very seldom does it leave permanent damage when it's noticed early.
Clearing AdBlue in a diesel in Garth: what it takes
The car stays put, whether that's a street beside Bangor Swimming Pool, a drive, a layby or a forecourt in Garth, and our van comes to it. Three replies decide the work, and so before anything else our technicians ask which fluid went in, about what quantity, and whether the engine has run.
The contaminated diesel and the urea leave as one after that tank is emptied, right there. A careful flush counts far more with AdBlue than after petrol, since residue will not clear away by itself. Clean diesel goes in once your filter is flushed — or replaced, when it needs to be — and after that the car is tested. About half an hour on site is usual for most jobs where the engine hasn't run. The pumps are explosion-proof, safe on a busy forecourt and quiet enough to use outside a house at night.
New diesel goes in to bleed your system, and that's the final step. Firing it up comes next, and then you drive off from where the car is parked, at Bangor (Gwynedd) or on a drive around Garth. Before we leave, we make sure it's running correctly with new diesel in. No garage is needed at any point, with the whole job done on the spot. Afterwards, you are given the paperwork for the insurer: a VAT invoice plus a written report from the engineer.
About Garth
Garth is a small suburban area situated on the coast of northwest Wales, near the city of Bangor. Garth lies at an elevation of around 25 metres, with terraced housing being the predominant type of accommodation in the area. Garth is close to nearby places such as Hirael and Upper Bangor, and is approximately 206.5 miles from London. Garth has a population of around 2472 residents.
AdBlue drains around Garth and across Gwynedd
AdBlue jobs in Garth are passed to teams that cover the places around it — Hirael, Bangor as well as Upper Bangor — and most of Gwynedd beyond, across LL postcodes. Near a border, or anywhere tricky to explain? Checking is better than assuming, and so phone.
Garth is a residential suburb, and a call-out drain suits it: whether the car is on a home drive, a residential street, a car park or a forecourt, our technicians drain it where it sits, and so it never needs to be moved to us.
What AdBlue in a diesel tank costs to put right around Garth
No single price could be fair, because every job differs. The price changes first with how long, if at all, the engine has been running, and next with the quantity of AdBlue that got in. After that it depends on where the vehicle is and whether a technician can get to it safely, which is simpler on an open driveway than in a tight space behind Roman Camp (hill fort).
What went in, how much, plus if it ran: every Garth enquiry opens by asking precisely those, before any figure, not afterwards. Their answers narrow a range right down to one number.
The quote is given on the call, before anyone sets off; payment happens on the day, by card or over the phone, and nothing upfront. While our engineer is on the way, dig out your insurance: plenty include misfuelling.
Garth: still next to your car?
Then the most handy thing you can do is nothing to the car. Ignition off, engine off, keys out. Say it was AdBlue, roughly what quantity, and if the engine ran, on 0333 366 0103. After that Petrol in Diesel takes over, in Garth or wherever in Gwynedd.