Pennance: AdBlue in the Diesel Tank? Leave It Off
If AdBlue has gone into your diesel tank, keep the motor off then keep your ignition off. In plain terms, AdBlue is just urea in water. As it is water-based, it won't ignite and won't blend with diesel; damage just comes once the pump starts drawing it. In Pennance, AdBlue in a diesel tank found before the engine runs normally means a drain and a thorough flush, right where the car is. Before anything, call us on 0333 366 0103.
What to do right now, Pennance: AdBlue in your diesel tank
Do:
- Keys out — that way nobody can switch anything on.
- Close to moving traffic? So put the hazard lights on.
- Which fluid, and roughly what volume? Hang on to the bottle or the receipt, and we can see.
- Give us a postcode starting TR16 5, or whatever street is nearest, and the van finds you straight — so ring wherever you stand.
Never do these:
- No starting the motor — not briefly, not to shift your vehicle.
- Your ignition remains off: on many diesels, switching it on is enough to run the pump.
- AdBlue doesn't mix in diesel — it separates out — so adding extra diesel will not weaken it.
- Never drive it anywhere, not even a short stretch along Tram Lane.
- No emptying it yourself, at all, at the roadside.
At a forecourt around Pennance, whether it's the Shell or another one, ask the attendants to help you roll the car away from the petrol pump. At home, the car stays exactly as it was left.
AdBlue in a diesel tank: what it does
The engine isn't what AdBlue is made for; the exhaust is. It goes into its own tank and is sprayed into your exhaust gas to clean it. Neither side fits the other: urea does not belong in an injection pump, and a pump cannot deal with urea.
Fuel mixes; AdBlue, once tipped in, won't. The behaviour is not at all like fuel's. The pickup sucks fuel from the lowest part of the tank, and that's just where AdBlue ends up: as it is heavier than diesel, it sinks. Once the pump runs, the AdBlue is first to be pulled through. Before then it waits underneath your diesel, which is how a car filled in Tresavean last night and not started remains the straightforward case, provided no one turns your key.
Two kinds of harm come from there. Crystals and corrosion. As the water evaporates, it strands urea that hardens in filter elements and tiny passages; meanwhile, because it attacks certain metals, every part it reaches keeps suffering for as long as it stays in there. Where the AdBlue is in the lines, leaving it overnight in Pennance makes things worse. In that tank only, time costs nothing. Water protects nothing. The high-pressure pump and every injector need diesel running through them, and so the water content harms them by itself.
Petrol or AdBlue in a diesel: why AdBlue is commonly worse
Petrol put into a diesel on Opie Oils's forecourt leaves the fuel thin — that is the main problem. No harm comes as long as it sits unused, mixed into your diesel — only when the engine runs on it.
With AdBlue in a diesel, the liquid as such is plainly the wrong one. Since it does not burn, running it through isn't an option. Crystals and corrosion remain after the next fill, and AdBlue separates again out of the diesel, and so watering it won't help. That is why the flush matters more, and trying the engine "to see" costs more with AdBlue than almost any other slip — in Treviskey or the centre of Pennance equally.
As with petrol, there's good news. Clearing a tank is the simplest part on any fuel system, and with no start-up, the AdBlue remains in there — wherever across Cornwall your car sits.
How AdBlue ends up in a diesel tank around Pennance
It's not deliberate. Plenty of cars keep the AdBlue cap alongside the diesel one, now and then behind a single flap, and muddling them up is easy in poor light. A container picked up while driving home and tipped in at home, rather than at the filling station, is the typical story.
The ways it occurs are few and familiar. The top-up is rushed outside Lanner Primary School, after the dash lit up with a warning as the children were taken off. A bottle is poured in at the end of the day on a drive just off Pennance Lane. Another version: darkness, the car park outside Lanner Inn, and someone using that flap the first time.
It comes up the most in a hire car, a brand-new vehicle, a company vehicle, or the other car of a family with one of each fuels — the vehicles drivers use least. Wherever you are in Pennance or the remainder of Cornwall, it is the same mistake and the same first answer: leave the car off.
Already started the motor with AdBlue in the diesel tank around Pennance?
If so, the AdBlue is no longer in your tank. Your filter and lines have had it pulled along, and any running takes it on to the injection pump and each injector.
Rough running, smoke, lost power, dashboard lights or cutting out: each may appear, perhaps part way across Pennance or returning from Lanner Moor Recreation Ground. No starting it again to test: pull over when safe, then turn everything off. Each start pulls more of that through.
If you were on the M5, over 50 miles from Pennance, 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 Pennance to the car park by Carn Marth Theatre is a very different job from a run towards Truro, under 10 miles away, with the AdBlue reaching further into the system with every mile. Approximately how far had it come? Tell us.
We do all of the cleaning where your car has come to a stop, and once the engine has been started there is more of it. If it is caught soon, long-term damage is very uncommon.
What does an AdBlue drain on a diesel involve in Pennance?
Our technicians come to the vehicle, wherever it has stopped around Pennance: a side street near Pennance Consols, a drive, a lay-by or a forecourt. What was put in, roughly how much, and if the motor has been run: we check before all else, because those decide the job.
Next, emptying the tank on the spot removes the polluted diesel along with the AdBlue together. Residue from AdBlue won't flush out by itself, and so the fuel system gets a full flush, which counts much more here than for petrol. A test of your vehicle comes at the end, after clean diesel goes in and your filter gets flushed or, if needed, swapped. About half an hour once we arrive is typical for most jobs where your motor hasn't run. Explosion-proof pumps make a busy forecourt sensible to work on, and they're quiet enough to spare the neighbours at night.
Lastly, the fuel system is primed with fresh diesel. Firing it up comes next, and then you drive off from where the car is parked, at Redruth or on a driveway in Pennance. It is tested on clean diesel to make sure it runs properly before our engineers go. Since the job is done in full where the vehicle is, a workshop never comes into it. Your insurer is likely to want an engineer's report and the VAT invoice — both yours once the job is done.
About Pennance itself
Pennance is a lakeside locality in Cornwall, situated near the city of Truro and surrounded by nearby places such as Lanner, Trevarth, and Busveal. Pennance sits at an elevation of 182 metres, with detached housing being the predominant type of accommodation in the area. Pennance is located approximately 7.4 miles from Truro and 238.5 miles from London, making it a relatively rural community. Pennance has a population of around 769 residents, who enjoy the scenic lakeside setting.
AdBlue drains around Pennance and across Cornwall
AdBlue call-outs in Pennance go to teams that cover the towns near it — Lanner, Trevarth plus Busveal — and most of Cornwall further out, across TR postcodes. Close to a border, or somewhere awkward to pin down? Asking is better than assuming, and so ring.
No towing is needed. In Pennance, a small village, a van that comes to you fits: your car is emptied where it stands, be it in a driveway, a side street, a car park or a filling station.
What does AdBlue in a diesel tank cost to sort out in Pennance?
Since the jobs vary, a single figure wouldn't be fair. The price moves first with how long, if at all, the motor has been running, and next with the amount of AdBlue that went in. After that it depends on where the car is and whether a technician can reach it safely, which is easier on an open driveway than in a tight space behind Lanner Village Hall.
Which fluid got in, how much, plus if it ran: each Pennance enquiry begins by asking exactly that, ahead of any quote, never afterwards. When they are known, a range turns into one firm number.
You get that price on the phone, before anybody heads out, and you pay on the day, by card or by phone, with nothing upfront. Plenty of insurance policies include misfuelling cover, so it is worth checking yours whilst we're on the way.
In Pennance and still beside the car?
Right now, the best thing to do with your car is to leave it. Motor off, keys out, ignition off. Ring 0333 366 0103: AdBlue, roughly how much, plus if the engine ran are everything our engineers need. Petrol in Diesel takes over the rest across Cornwall, Pennance too.