--- title: AdBlue in a Diesel Tank Penstone: What Now canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/penstone-devon/ location: Penstone county: Devon latitude: 50.789940 longitude: -3.739430 service: AdBlue in a Diesel Tank updated: 2026-10-07 --- # What Now? AdBlue in the Diesel Tank in Penstone Has your engine run since the AdBlue got in? This one question settles nearly everything about what comes next. Wherever the car is — Yeoford, Penstone — never start a motor that has not run yet. Call 0333 366 0103 with your ignition and engine both off. Across Penstone, such a case is generally drained and flushed where it stands. Where your engine has been run, stop somewhere safe first, then switch the car off. It is a bigger job, though stage one does not change. Wherever across Devon it took place, one of the cases below fits yours. ## AdBlue in a diesel on a Penstone forecourt Picture it: standing by the petrol pump, gripping the bottle, you realise the cap you took off was not the right one. Anywhere around Penstone, then — Shell, Tesco, or anywhere else close by. Put simply: no better place to be to spot it. Still inside the tank, and no fuel pulled onwards: that is where the AdBlue is. Clearing the pump is no excuse to start it — and so do not get back in. Have the staff to help rolling it to a space, hold on to the receipt, then phone us from there. Draining it right at the petrol pump is fine when it can't be shifted, since the equipment is explosion-proof. ## At home around Penstone with AdBlue in your diesel tank For days the dash had been warning you. You bought a bottle, poured it in on the driveway, and only when you put the empty bottle in the recycling did you look again at the cap. Homes just off Rowes Orchard are hit as much as anywhere else. What it means: if you have not driven since, this is nearly as good as the forecourt. AdBlue does not mix with diesel; it sinks to the bottom of your tank and waits there. Overnight doesn't change that. Your move: keys in the house, so nobody takes the car anywhere first thing. After that, phone. Our technicians drain it on your driveway, whether that's around Penstone or out in Colebrooke. The pumping kit runs quiet enough not to disturb the neighbours at night. ## Penstone: drove off with AdBlue in a diesel? A short way beyond filling up, your engine began misbehaving: roughness, smoke, less power, lights on your dash. Maybe heading to Exeter, under 15 miles away, or simply along Goblin Hill. What it means: your fuel system has sucked the AdBlue in. Through the filter, along the pipework, and — the further the distance — deeper into the high-pressure pump and each injector. More miles, more restarts: deeper it goes. Pull in somewhere safe — that is the next job — then turn it off. Penstone lies under 15 miles from the M5; on it, pull off at the first junction rather than pressing on to the services. Do not restart the vehicle to see if it has cleared; it will not have. Ring us and say how far you travelled. ## AdBlue in the wrong tank of a hire, lease or company car It is a motor you have had for a week. Your own car either does without AdBlue or puts it somewhere different, and so nothing told you the AdBlue cap was right beside the diesel. Anyone, wherever across Devon, might do the same. Meaning? Whatever applies above counts here — run or not — and one further stage. Plenty of hire and company agreements want the owner to approve work on the car. Next: phone the rental company or your fleet manager first, and then us — settling it before our arrival is faster. Stuck near St Andrew's or outside Yeoford till someone answers, your vehicle remains turned off the whole time. ## Not sure it was AdBlue in your diesel tank, Penstone? Honestly, the only answer might be that you think so. Too light, that bottle; a trace of ammonia near the filler; no clear recollection of the cap. Sound familiar? The gates of Yeoford Community Primary School in a hurry, say, or a friend's driveway out in Copplestone. The point: your engine is not hurt by some AdBlue spilled on the filler. Inside your diesel tank, however, AdBlue damages it. You cannot tell which by turning the ignition, and doing so would draw in any AdBlue that is in your tank. What to do: treat it as if it was put in. Don't start it. Checking a tank that turns out free of AdBlue is better than draining one after it has been run — so ring then tell us what you saw. ## The common ground in every Penstone AdBlue drain Whichever situation you are in, the job starts the same way. Three things come when our engineers reach the car — on a filling station, a driveway, a street by Colebrooke Parish Hall or the car park at The New Inn: the fluid, the amount, and if the motor has run. Those answers settle the work, and you hear our quote by phone, before anybody heads out. A thorough flush follows this drain. With petrol it is standard; with AdBlue it's crucial, because crystals form and some metals are attacked, and neither rinses away unaided. Then comes your filter — flushed, or replaced when necessary — then clean diesel, and a test of the vehicle. Most unstarted vehicles are a half-hour visit after the moment our engineers arrive. Our engineers start the car last. Before our technicians head off, it is tested to be sure it runs correctly on new diesel. We do the whole job where the vehicle is, and long-term damage is very rare if it has been noticed early. You pay on the day, with nothing upfront, and get a VAT invoice and an engineer report for your insurer. Dig out your insurance before we arrive: cover for misfuelling comes built into plenty of policies. ## About Penstone, briefly Penstone is a small hamlet in inland Devon, situated approximately 10 miles from Exeter and 77 metres above sea level. Penstone lies near the villages of Colebrooke and Coleford, and is characterized by its predominantly detached housing stock. Penstone is part of a wider rural area that includes nearby Knowle, and is located within the South West region of England, about 164 miles from London. ## Penstone and Devon: AdBlue drains across the area Penstone is a rural hamlet, and the same vans that cover it work the places near it too, Coleford and Knowle among them, across the EX postcode area. A postcode starting EX17 5 is the quickest way to tell us where you are. No towing is needed, be it stopped in the centre of Penstone or in a lay-by heading to Five Acre Copse, and so leave it put. Our technicians drain the vehicle where it sits. If you are somewhere hard to explain, close to Colebrooke House or close to a boundary, ring and ask rather than assuming. ## The one-line version Engine never started: phone, and leave it switched off. Run by now: stop, power down, phone 0333 366 0103. Petrol in Diesel takes over the rest, in Penstone or wherever across Devon.