--- title: Pityme: AdBlue in a Diesel Tank? Don't Start canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/pityme-cornwall/ location: Pityme county: Cornwall latitude: 50.553670 longitude: -4.893310 service: AdBlue in a Diesel Tank updated: 2026-10-11 --- # AdBlue in the Diesel Tank in Pityme? Keep It Switched Off AdBlue in the diesel tank? Then leave your motor off — and your ignition too. Water with urea dissolved in it: that is AdBlue. It does not burn, it does not mix with diesel, and the harm it does begins when the system pulls it in. Caught before the engine has run, AdBlue in a diesel tank is normally a drain and a thorough flush, done where the car is around Pityme. Ring 0333 366 0103 before you do anything else. ## Those opening minutes: AdBlue in the diesel tank around Pityme Things to do: - Keys out — then nobody can switch anything on. - If you are at all near moving traffic, put the hazards on. - The empty bottle or the till receipt shows us the product and the quantity, so do not bin it out. - Ring us from where you are. A postcode starting PL27 6, or the name of the closest street, gets the van to you without a search. Don't do these: - Don't start your engine, even for a moment to move the vehicle. - Many diesels run their fuel pump the moment your ignition comes on, and so leave the vehicle off. - Don't top up with diesel to dilute it. AdBlue does not dilute in diesel; it separates out. - Even a short way up Rock Road is too far to drive the car. - No draining it yourself, either, at the verge. The staff working at any Pityme filling station — the Texaco included — will normally lend a hand pushing it clear if you ask. At home, the vehicle remains just where it is. ## What AdBlue does in a diesel tank Made for the exhaust, AdBlue has no place in the motor. It goes into its own tank and is sprayed into the exhaust gas to clean it. Neither side suits the other: urea doesn't belong in an injection pump, and a pump can't deal with urea. Inside a diesel tank it acts really differently from fuel. It doesn't mix in. The intake sucks fuel from the lowest part of that tank, and that is exactly where AdBlue settles: as it is heavier than diesel, it sinks. A car filled on a driveway in Splatt yesterday evening and left unstarted counts as the simple one. Nothing has sucked the AdBlue up so far — but once the engine turns, that is what goes first, directly from the bottom of the tank. It does two kinds of damage from there. Crystals and corrosion. As the water evaporates, it leaves urea that crystallises in filter elements and tiny passages; meanwhile, because it attacks certain metals, every part it reaches suffers for as long as it remains in there. By daybreak, a car parked in Pityme with AdBlue in its lines grows worse; if it's just in your tank, it doesn't. Water lubricates nothing. The injection pump and each injector need diesel flowing through them, and so the water part harms them in its own right. ## Why AdBlue in a diesel is regularly more significant than petrol A fault of thin fuel is what you get after fuelling a diesel with petrol from the BP. Mixed through your diesel and sitting unused, it is no threat at that stage; using the engine does the harm. AdBlue in a diesel is an issue of the wrong substance altogether. It does not burn, and so it can't simply be run through. Whether your car is in Trevanger or the heart of Pityme, firing it up "to see" costs more with AdBlue than nearly any other error, and the flush matters more. Why: it will not stay blended, so watering it down fails; and crystals and corrosion outlast the following tankful. The same good news holds as with petrol. If your engine has not run, the AdBlue is still in your tank, and that tank is the simplest part of a fuel system to clear, wherever across Cornwall your car is standing. ## AdBlue in a diesel tank in Pityme: how it ends up there No one means to do it. The AdBlue filler on many motors waits right next to your diesel filler, sometimes under the same flap, and the two caps can look alike in poor light. A bottle bought while heading home and tipped in outside the house, instead of at the filling station, is the typical story. The ways it takes place are few and familiar. Rushing, outside St Minver School, after a warning light flashed on during the school run, a parent tops up the car. Someone tips the bottle in at home, right off Pityme Farm Road, as the day ends. Or a driver unfamiliar with that flap refills your vehicle in dim light, parked in the car park by The Pityme Inn. It comes up the most in a hire car, a new car, a company car, or the other car in a home with both fuels — the vehicles drivers use the least. Wherever you're in Pityme or the rest of Cornwall, it's the same mistake and the same first answer: leave the vehicle off. ## Pityme: started your engine with AdBlue in the diesel tank? In that case, the AdBlue is no longer inside your tank. Through the fuel filter, along the pipework, and — with any running time — on to the injection pump and every injector: that's where it travels. Watch for lumpy running, exhaust smoke, lost power, warnings on the dash, or a stall — coming back from Point at Polzeath Golf Course, perhaps, or part way across Pityme. Pull over when safe. Switch off. Leave the vehicle off rather than testing it again. With each start, more of that is pulled through. Leave the M5, over 50 miles from Pityme, at the first junction and park somewhere safe, not driving on. How far it went counts. A couple of hundred yards across Pityme to the car park by Sharp's Brewery Shop is a very different job from a run towards Truro, under 25 miles away, with the AdBlue reaching further into the fuel system with each mile. About how far it had come is worth telling us. Our engineers do all of the flushing where the vehicle has come to a stop, and once the engine has been started there is more of it. Permanent damage is very unusual if it is caught quickly. ## What does an AdBlue drain on a diesel involve in Pityme? A street by Trewint Playing Fields, a driveway, a lay-by or a forecourt: wherever your car has stopped in Pityme, our technicians come to it. What was put in, about how much, plus if your motor has been run: our engineers ask before all else, because those shape the work. Next, emptying the tank on the spot takes out the polluted diesel and the AdBlue together. Your system is cleaned thoroughly, which counts more with AdBlue than with petrol, since what it leaves behind doesn't rinse out on its own. Next, the fuel filter: cleaned, or replaced when it must be. Then fresh diesel, then a test of the car. About half an hour once we arrive is typical for most jobs when your engine hasn't run. The pumps are explosion-proof, safe on a busy forecourt and quiet enough to use outside a house at night. Lastly, the system is bled with clean diesel. Firing it up comes next, and then you set off from where your car is parked, outside Roche or on a driveway around Pityme. Our technicians confirm it runs correctly on clean diesel before we leave. The whole job is done where your car is, so it never has to be taken to a garage. The insurer will want an engineer's report and the VAT invoice — each handed over afterwards. ## About Pityme itself Pityme is a small coastal village in Cornwall, situated near the north coast and approximately 21 miles from Truro. Pityme sits at an elevation of around 63 metres, overlooking the surrounding countryside and nearby settlements like Tredrizzick and Penmayne. Pityme is characterised by its predominantly detached housing stock, reflecting its rural setting. Pityme remains a quiet residential community, with a population of around 576 people. ## Pityme and Cornwall: AdBlue drains across the area The teams that answer AdBlue call-outs in Pityme also cover the spots round it, Tredrizzick, Penmayne and Stoptide among them, and most of Cornwall beyond, across the PL postcode area. Close to a border, or somewhere tricky to explain? Asking beats assuming, and so phone. No towing is needed. In Pityme, a coastal village, a mobile service fits: the vehicle is drained where it stands, whether on a driveway, a residential street, a car park or a filling station. ## Pityme: what AdBlue in a diesel tank costs to fix Each job differs, and so not one single quote would be honest. What shifts the price is, first of all, whether your engine has run and for how long; then how much AdBlue went in; and after that where the car is and whether our van can get to it safely, which is easier on an open driveway than in a tight spot behind Rock Methodist Church. What went in, what quantity, plus whether the engine ran: each Pityme call begins with exactly those, ahead of a quote, never after. Given those replies, a range shrinks to one fixed figure. Priced on the call before the engineer heads out, it is settled on the day — card or phone, nothing in advance. As the van is on the way, check your insurance: many include misfuelling. ## Alongside your car in Pityme, right now? Right now, the best thing to do with the car is to leave it. Keys out; motor and ignition off. Tell us it was AdBlue, about what quantity, and if it ran, on 0333 366 0103. After that Petrol in Diesel takes over, in Pityme or wherever within Cornwall.