AdBlue in the Diesel Tank in Roadside? Keep It Switched Off
With AdBlue in the diesel tank, the ignition stays off and so does your motor. AdBlue is urea mixed in water. Unlike fuel, it neither burns nor blends, and nothing starts until the engine sucks it through. Caught before the engine has run, AdBlue in a diesel tank is usually a drain and a thorough flush, done where the vehicle is around Roadside. No step comes before ringing 0333 366 0103.
Those opening minutes: AdBlue in the diesel tank around Roadside
To do:
- Keys out — then no one can switch anything on.
- Hazards on, if moving traffic is anywhere close.
- So you can tell us which fluid it was and about how much, keep your receipt or the empty bottle.
- Our van locates you fastest with a postcode starting DD10 0, or just the name of a street nearby, and so phone from the spot.
Do not:
- No starting the motor — not briefly, not to reposition the car.
- Many diesels power their fuel pump the moment the ignition goes on, so keep the vehicle off.
- No more fuel added. The AdBlue won't mix, and so it's pointless.
- Leave the vehicle where it is instead of driving it anywhere, even a short stretch along Scotston Brae.
- Draining the tank on your own by the road isn't worth trying.
Ask the people behind the counter to help you roll the vehicle off the pumps if you're on a forecourt around Roadside, whether it's the Asda or elsewhere. Stopped on your own driveway? Then it remains just as it is.
What AdBlue does in a diesel tank
The motor is not what AdBlue is made for; the exhaust is. From a dedicated reservoir it is fed straight to your exhaust, cleaning what your motor lets out. Neither side fits the other: urea does not belong in an injection pump, and an injection pump cannot deal with urea.
Tipped in with the diesel, it keeps apart instead of blending — quite different from fuel. It sinks, because it's denser than diesel, and settles low where the intake draws its supply from. Easiest of all: one that had AdBlue in Kirkton last night and hasn't been started since. The liquid sits at the foot of that tank, untouched — but it would be first through if the engine starts, ahead of any diesel at all.
Two kinds of damage follow from there. As its water goes, the urea left behind crystallises, and the crystals block filters and settle in fine passages. And it's corrosive to some of the metals a fuel system is made from, so it keeps labouring on the parts it hits for as long as it stays there. Lines carrying AdBlue mean harm by morning for a car sitting around Roadside. Just inside your tank, it stays the same. And there's the water: it brings no lubrication to the components that need it most — the injection pump and every injector.
AdBlue in a diesel: why it is frequently worse than petrol
Petrol pumped into a diesel on BP's forecourt leaves the fuel thin — that is the whole issue. It mixes with your diesel, and while it's inside your tank it does no harm; the harm comes from running your engine on it.
AdBlue in a diesel is a different matter: not thin fuel, but no fuel at all. Since it does not burn, running it through isn't an option. Whether the vehicle sits in Bush or the centre of Roadside, firing it up "to see" does more harm in this case than almost any other slip, and the flush matters for more. The reasons: it will not stay blended, and so diluting it fails; and crystals and corrosion survive the next tankful.
With AdBlue, the good news is no different from petrol. Never started? Then the AdBlue sits only inside the tank, the simplest section of the whole system to empty, anywhere your car has stopped in Aberdeenshire.
How AdBlue ends up in a diesel tank around Roadside
Nobody means to do it. The AdBlue filler on many cars waits right next to the diesel filler, at times under the same flap, and the two caps can look alike in poor light. It mostly takes place outside the house, from a container grabbed en route home, not at the forecourt.
A few familiar ways account for most cases. Halfway through the morning drop-off, the dashboard flags it up, and outside the local primary school the refill is rushed. A bottle is poured in at the end of the day on a drive just off Kirkview Crescent. Or your car is topped up in the car park at Great Scot, in poor light, by somebody who has never opened that flap before.
It crops up the most in a hire car, a brand-new motor, a fleet motor, or the other vehicle of a family with both fuel types — the cars people know least. Anywhere across Aberdeenshire, Roadside as well, the mistake does not change, and nor does the first step: leave it off.
Started your engine with AdBlue in your diesel tank around Roadside?
Then the AdBlue has left the tank. It's been pulled through the fuel filter and the lines, and if the engine ran for any time, it has reached the high-pressure pump and the injectors.
Perhaps coming back from St Cyrus National Nature Reserve, or part way across Roadside, the engine may run lumpy, smoke, drop pace, light up your dash or stall. Stop as soon as it is safe, switch off, and don't restart the car to check. Each start pulls more of that through.
If you were on the M90, under 50 miles from Roadside, come off at the next junction and stop somewhere safe instead of pressing on.
How far it went matters. A couple of hundred yards across Roadside to the car park by St Cyrus Public Hall is a very different job from a run towards Aberdeen, under 50 miles away, with the AdBlue reaching further into the fuel system with every mile. Let us know about how far it had come.
Wherever the car came to a halt is where all of it gets done, even with more to rinse out once the motor has been started. Spotted quickly, it very seldom leaves permanent damage.
What emptying AdBlue from a diesel involves around Roadside
A road beside Ecclesgreig Old Church and Burial Ground, St Cyrus, a driveway, a layby or a forecourt: anywhere your car has come to rest in Roadside, our engineers come to it. The work depends on three replies, which we ask for before all else — what was put in, the quantity, and whether the motor has turned over.
Next, emptying your tank right there takes out the polluted diesel and the AdBlue in one go. Residue from AdBlue won't flush away unaided, and so the fuel system gets a careful flush, which matters far more with urea than with petrol. Testing the car comes last, after fresh diesel goes in and the fuel filter is flushed or, if needed, replaced. If your engine has not run, most jobs take about half an hour once we are there. Our pumping gear is explosion-proof, so a live forecourt is no fault, and it's quiet enough for a residential street after dark.
New diesel goes in to prime your system, and that's the final step. Starting it comes next, and then you drive off from where your car is parked, by Montrose or on a driveway around Roadside. It is tested on new diesel to confirm it runs properly before our technicians leave. We do it all wherever the vehicle has stopped, and it never has to go to a workshop. You get a VAT invoice and an engineer report afterwards, which is what insurers ask for.
About Roadside and where it is
Roadside is a suburban area in Aberdeenshire, situated on the coast of Scotland, with an elevation of 82 metres. Roadside lies near the towns of St Cyrus and Burnhead, and is approximately 28.9 miles from Aberdeen. Roadside has a population of around 1175 people, predominantly living in detached houses. Roadside is part of the wider residential area surrounding Aberdeen, Scotland's third-largest city.
Roadside and Aberdeenshire: AdBlue drains across the area
AdBlue call-outs around Roadside go to vans that serve the towns near it — Burnhead, St Cyrus plus Lochside — and much of Aberdeenshire beyond, throughout DD postcodes. Ring and check instead of guessing when you are close to a border, or anywhere awkward to explain.
A van that comes to you suits Roadside, a residential suburb: there's no need to take your car to us, because our engineers empty it on the spot, on a driveway, a side street, a car park or a forecourt.
Roadside: what AdBlue in a diesel tank costs to fix
No single price would be honest, because each job is different. Three things change the price: whether your engine has run and for how long, how much AdBlue went in, and where your car is. That last one turns on whether a technician can get to it safely, and an open drive is easier than a tight space behind Graveyard Watch House.
Ahead of any figure, not afterwards, every enquiry from Roadside opens with the same three questions: the fuel, the amount, and if the engine ran. Given those replies, the range shrinks to one fixed figure.
Priced on the call before the van sets out, the job is paid for on the day — card or phone, nothing in advance. Misfuelling cover comes with plenty of insurance policies, so it is worth looking at yours before the van gets there.
Beside your car around Roadside, right now?
Then, touch nothing — that is the most helpful move available. Keys out; motor and ignition off. Ring 0333 366 0103: AdBlue, roughly how much, plus whether the engine ran are all our engineers ask. Petrol in Diesel takes over the remainder throughout Aberdeenshire, Roadside included.