--- title: Coalway: AdBlue in a Diesel Tank, What Next canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/coalway-gloucestershire/ location: Coalway county: Gloucestershire latitude: 51.790060 longitude: -2.599190 service: AdBlue in a Diesel Tank updated: 2026-10-17 --- # Coalway: AdBlue in the Diesel Tank? Find Your Situation All of that hinges on a single fact: if the motor has started since the AdBlue was added — far more than anything else. Not run yet? Then leave the car like that, wherever the car is — Coalway or Poolway. Usually that means emptying and thoroughly flushing it on the spot in Coalway — and so leave the key and motor off then ring 0333 366 0103. Pull over the moment it is safe then switch off, if it has already run. The job is bigger, but the first stage is the same. Further down: the cases our engineers meet, anywhere around Gloucestershire. Pick yours. ## On a Coalway forecourt with AdBlue in a diesel The cap you unscrewed was the wrong one — and you just spot it while you're stood at the petrol pump, bottle or the nozzle in hand. Perhaps you are at the Texaco, maybe at the Central Garage, maybe somewhere else around Coalway. What it means: this is the best place to find out. The AdBlue is inside your tank and nowhere else. Nothing has drawn it in. Next: avoid the temptation to fire it up only to move away from the pump. Phone us from the forecourt once the vehicle sits in a space — the staff will help push it — then keep the bottle. Draining it there at the petrol pump is possible if it can't be shifted, because the equipment is explosion-proof. ## Coalway, at home: AdBlue in the diesel tank For days the dash had been warning you. Only at the recycling bin, the empty bottle in your hand, did you glance back at the cap you had used at the driveway. Homes just off Coalway Road are caught out as often as everywhere else. What it means: if you haven't driven since, this is almost as good as the forecourt. Diesel and AdBlue keep separate: the AdBlue settles to the floor of that tank and stays there, however long the night. Next: stop any early move by putting the keys indoors, then ring us. We drain the car on your drive, whether that is around Coalway or out in Palmers Flat. Even at night, our pumps stay quiet enough for a driveway. ## Coalway: set off with AdBlue in a diesel? You filled up, set off, and a mile or two later your engine began to run unevenly, smoke, lose power or light up the dashboard. It might have been driving for Gloucester, under 25 miles away, or simply along Parkend Road. In short: the AdBlue has been sucked through your fuel system. Past the filter, along the lines, and — the more the mileage — on into the high-pressure pump and every injector. Every restart, like every mile, pushes it deeper. What to do: pull over where it is safe to do so then switch off. On the M50, under 10 miles from Coalway, that means the next junction, not the services further on. It won't have cleared, and so there's no point starting it again to check. Call us and say how far you went. ## Hire, lease or company car with AdBlue in the wrong tank You have had the car hardly a week. On your own car, AdBlue is absent or elsewhere. On this one, its cap is right by the diesel cap — news to you. Throughout Gloucestershire, nobody is safe from it. What it means: the same as the scenarios above, depending on whether it's run, with one more step. Many hire and fleet agreements need the owner's approval for work. Next: ring the hire company or your fleet manager first, and then us — sorting it before we arrive is quicker. If you're stuck in the car park outside Lydney, or by Broadwell Memorial, while you wait for an answer, leave the car off. ## AdBlue in your diesel tank? Not sure, around Coalway Sometimes the fair answer is "I think so". The bottle is lighter than it should be, there is a faint smell of ammonia about the filler, and you cannot remember which cap you took off. The gates of Coalway Primary School in a rush, say, or a friend's drive over in Bakers Hill. What it means: a little spilled round the filler does no harm to the engine. If it's inside the diesel tank, though, that changes. Any AdBlue in the tank will be pulled in by turning on your car, and the start wouldn't settle which it is in any case. Your move: act as though it did, and never start your engine. Call us and describe what you saw; we'd rather check a tank that turns out clean than drain one that has already been run. ## Every AdBlue drain around Coalway shares these stages Each situation gets the same opening to the work. We come to the vehicle, whether it is on a forecourt, a drive, the car park outside Old White Hart Inn or a side street close to Evergreen Hall, and ask three things: what got in, roughly how much, and if your engine has been run. Your price comes on the call, ahead of anyone setting off, and the answers set the job. Then your tank is drained and your system rinsed thoroughly, which matters more with AdBlue than with petrol: AdBlue crystallises and is corrosive to some of the metals in a fuel system, so it does not rinse out on its own. Then comes the fuel filter — flushed, or swapped where needed — followed by clean diesel, and a test of the car. Where the engine hasn't run, expect about half an hour once we arrive, for most jobs. Our engineers start the car at the end. Before our technicians go, it is tested to be sure it runs smoothly on clean diesel. When it's noticed quickly, the vehicle very rarely has permanent damage, and the entire job happens where it is. Paying comes that day, never upfront. For the insurer, there is a VAT invoice plus a written report from the engineer. Many insurance policies include misfuelling cover, so it is worth checking yours while we're on the way. ## About Coalway Coalway is a village in Gloucestershire, situated inland at an elevation of 212 metres, with detached housing being the predominant type of accommodation. Coalway lies near several other small settlements, including Palmers Flat, Broadwell, and High Nash, and is approximately 15.9 miles from Gloucester. Coalway has a population of around 1764 residents, who live in a rural setting. Coalway is also relatively far from London, at a distance of 107.7 miles. ## AdBlue drains across Gloucestershire, Coalway included Broadwell and High Nash get the same vans as Coalway, a rural village, along with further places throughout GL postcodes. The location comes clearest from a postcode that starts GL16 7. No towing is required, whether parked centrally in Coalway or on a layby en route to Forest Golf Club, and so keep it where it is. Our technicians drain the car where it is. If you are somewhere hard to describe, near The Church of the Good Shepherd or close to a border, ring and ask instead of guessing. ## Your situation, summed up Not run yet: keep it off then call. Whatever line applies, Petrol in Diesel takes over from there on 0333 366 0103, across Gloucestershire and in Coalway — after you pull over, switch off and phone, if it's run.