--- title: Oldmixon: AdBlue in a Diesel Tank, What Next canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/oldmixon-somerset/ location: Oldmixon county: Somerset latitude: 51.320610 longitude: -2.957940 service: AdBlue in a Diesel Tank updated: 2026-10-22 --- # What Now? AdBlue in the Diesel Tank in Oldmixon What to do about AdBlue in a diesel tank comes down to one thing more than any other: if the motor has been run since it went in. Over in Uphill or right in Oldmixon, an unstarted motor should remain unrun. Leave the motor and the ignition off then ring 0333 366 0103; it's usually a drain and a thorough flush, done where your car is around Oldmixon. Pull over the minute you safely can and switch off, if it has been run. It's a bigger job, though step one does not change. Find the scenario below that matches yours, wherever in Somerset it happened. ## Oldmixon forecourt: AdBlue in a diesel at the pump Only now, bottle still in your hand, it dawns on you that the cap you took off was the wrong one, right at the petrol pump. Maybe you are at the the nearest petrol station, maybe at the Shell, maybe somewhere else around Oldmixon. The point: of every spot to notice, this is the best. Nothing has drawn it in, and so the AdBlue stays just inside that tank. Clearing the petrol pump is no reason to start it — and so don't get back in. Three things: a shove into a bay with the staff helping, the receipt kept, and a call to us from the forecourt. Stuck by the petrol pump? Explosion-proof kit keeps a live forecourt sensible, so it can be drained where it is. ## Oldmixon, at home: AdBlue in the diesel tank On the dash, a reminder had been lit all week. Only by the recycling, the empty bottle in your hand, did you look back at the cap you had used at the driveway. Drives close to Totterdown Lane see it as much as any other street. What it means: if you have not driven since, this is almost as good as the forecourt. AdBlue doesn't mix with diesel; it sinks to the bottom of that tank and waits there. Overnight doesn't change that. Next: stop an early move by keeping the keys indoors, then phone us. Your drive is where it gets emptied, whether in Oldmixon or Purn. The pumps are quiet enough to use outside a house at night. ## Drove off with AdBlue in a diesel in Oldmixon? Topped up, drove away, and soon your engine was running unevenly, smoking, down on power, or flashing up the dash. Maybe it was on Penarth Drive, maybe on the way out towards Cardiff, under 15 miles away. Meaning? Your pump has sucked the AdBlue up. Distance sets how far it gets: filter and lines to begin with, then the high-pressure pump and each injector. It goes deeper with each extra mile covered and each restart. Pull in safely — that's the first step — then switch it off. Services further on are too far: on the M5, under 3 miles out of Oldmixon, use the next junction. Do not restart the vehicle to see if it has cleared; it will not have. Phone, and say how far your car went. ## AdBlue in the wrong tank of a hire, lease or company car You've just driven the car a week. The AdBlue filler sits right beside the diesel one, which you didn't know, since your own car either has no AdBlue or keeps it somewhere else. It can happen to anyone, anywhere in Somerset. In short: an extra stage on top of the cases above, and those turn on whether it has run. The owner frequently has to approve any work, under many hire and fleet contracts. Settling it before we turn up is faster, so phone the hire company or your fleet manager, then us. If you're stuck in the car park at Weston-Super-Mare, or by St Barnabas Mission Church, whilst you wait for an answer, leave the vehicle off. ## Unsure about AdBlue in the diesel tank in Oldmixon? Truthfully, the best answer might be that you think so. A slight ammonia whiff lingers near your filler, the bottle seems too light, and the cap you took off is hard to recall. The gates of Oldmixon Primary School in a rush, say, or someone's drive over in Hutton. Put simply: spillage near the filler does the engine no harm. AdBlue inside your diesel tank does. Starting the car will not tell you which, and if there is AdBlue in your tank it would pull it in. Next: assume it went in, and leave the engine off. Ring with what you saw: we'd rather find a clean tank than empty one once the engine has run. ## Oldmixon: what each AdBlue drain has in common Each situation gets the same opening to the work. Our technicians come to the vehicle, whether it's at a forecourt, a driveway, the car park at The Walnut Tree or a side street close to Weston-Super-Mare Football Club, and ask three things: what got in, roughly how much, and if the engine has run. Over the phone, ahead of dispatch, you are told the price, and those answers decide the job too. Then your tank is emptied 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, and so it doesn't rinse out on its own. Clean diesel goes in after your filter is flushed or replaced, and your car is finally tested. Never started? In that case about half an hour once we are there covers most jobs. Last, we fire it up. With fresh diesel in, it runs while our engineers check it is running smoothly, and then we leave. The entire job is done where your car is, and if it is noticed soon, long-term damage is very unusual. You pay on the day, with nothing upfront, and get a VAT invoice and an engineer report for your insurer. Many policies include misfuelling, so look at yours as we head over. ## About Oldmixon and where it is Oldmixon is a suburban area in Somerset, situated near the coast and approximately 14 miles from Cardiff. Oldmixon has a relatively low elevation of 14 metres and is surrounded by nearby places such as Purn and Uphill Manor. Oldmixon is characterised by its predominantly detached housing stock, which reflects its residential nature. Oldmixon is also close to Bleadon, another local community in the area. ## AdBlue drains in Oldmixon, and across Somerset too Uphill Manor and Bleadon have the identical vans as Oldmixon, a residential suburb, plus other towns throughout BS postcodes. Fastest of all: a BS24 9 postcode for where you stand. Whether the car is on a lay-by on the way to Bleadon Hill Golf Course or in a car park in the middle of Oldmixon, it doesn't need to shift. The drain happens right there. Assuming doesn't help beside ROC Post Bleadon, close to a border or somewhere hard to describe; ring and check. ## Your scenario, summed up Not run yet: keep the vehicle off then call. Run by now? Pull over, turn off, ring. Petrol in Diesel takes over the remainder whatever it is, in Oldmixon and Somerset, on 0333 366 0103.