--- title: Explained: AdBlue in a Diesel Tank New Longton canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/new-longton-lancashire/ location: New Longton county: Lancashire latitude: 53.726840 longitude: -2.746270 service: AdBlue in a Diesel Tank updated: 2026-10-20 --- # AdBlue in a Diesel Tank in New Longton: Why It Occurs and How to Avoid It Leave the engine and ignition off then ring 0333 366 0103 first — reading can wait if AdBlue is already in the diesel tank. A drain plus a full flush, carried out right where the vehicle sits around New Longton, is usually all it takes if found before the engine runs. The remainder of this page explains why it takes place and how to ensure it doesn't — useful if you're reading before it has happened. ## Two fillers, two tanks: AdBlue in a diesel motor Many modern diesels around Howick Cross, as well as New Longton, carry on two fluids; your engine takes only the diesel. Its own tank keeps it, and from there it is sent to the exhaust, and there a spray treats the gas. Every tank comes with a filler of its own. Some motors keep the AdBlue filler in the boot or under the bonnet; plenty of others have the two together under one flap. Topping up your diesel side at the pump goes on all the time. Someone who has to stop and work out where it goes usually fills the AdBlue side, from a bottle, and far less frequently. The slip lives in that gap. ## How AdBlue in the diesel tank takes place in New Longton It's seldom carelessness. Three things tend to line up. The warning comes first. As AdBlue runs low the car tells you, and if it runs out altogether, the vehicle goes into limp mode. So the top-up is done in a hurry: on a driveway off The Cedars before work, or in the car park at Cricket Club on the way home. Unfamiliar cars come next, too. Rentals, new vehicles and company motors place their fillers in new places, and the hand goes for the cap it used on the old one. And the bottle fits. A bottle with a spout goes into a diesel filler as easily as an AdBlue one, so nothing stops the pour once it has started. It's seconds, whether in White Stake or right in the centre of New Longton. ## Telling the AdBlue filler from your diesel filler Whether a New Longton forecourt or a driveway over in Kingsfold, take a few seconds on these before any goes in. - Where it sits can mislead; the cap does not. AdBlue caps are often blue or carry the word "AdBlue" — diesel caps usually don't. - Many motors give AdBlue the smaller neck of the two. - A label inside your fuel flap often shows which fuel goes where, on many motors. Check for it. - Can't see it next to the diesel filler? Then check below the bonnet or in the boot — the handbook will say where. - The previous driver knows. Ask when you collect a hire car or fleet car — from Lostock Hall's car park, say — not when the warning appears. ## Topping up AdBlue without it reaching your diesel tank The day the light goes on, anywhere around Lancashire, use this routine. - Not in a rush on the side of Chapel Lane, not on a slope, not with your engine running: park and switch off properly. - Find the AdBlue filler, check the cap, and say the word "AdBlue" aloud while you unscrew it. It sounds silly. It works. - Both under one flap? So make sure the lid on the diesel side is still closed ahead of lifting the bottle. - Using the bottle's own spout, pour slowly — and stop when it is full or the bottle is empty. - Close the cap, then look again — making sure your diesel filler remained shut throughout. Only then, start your car. Stop there if you find, at stage two or three, that you have already poured into the diesel side. Don't go on to stage five. ## Already put AdBlue in your diesel tank around New Longton? What follows is a short order of things, starting with not starting your engine. Do not switch your ignition on; on many diesels that alone runs the fuel pump. Diluting it with extra diesel fails, since AdBlue sinks to the base instead of blending — and that is where your fuel is drawn from. At a forecourt — Gulf, another forecourt nearby or another — the attendants will normally help roll the car clear, when you ask. Leave it where it is if you are on your own drive in New Longton. If your motor has already run, stop as soon as it is safe then switch off. The next exit means the place to leave if you are on the M65, under 3 miles from New Longton. About how far did it go? Crossing New Longton is less a job than a run of under 5 miles to Preston, and so say. ## What takes place when our technicians turn up in New Longton The van reaches your car anywhere it has come to rest — your own drive, near New Longton Methodist Church, or outside New Longton All Saints CofE Primary School. We ask what went in, roughly how much, and if it's run, because those answers settle this work and our price. You get that quote by phone, before anybody sets off. Next: a drain, then a thorough flush of the entire system. Not like petrol, AdBlue leaves crystals and eats at certain fuel-system metals, and none of that clears out unaided. Hence it matters more. A test comes at the end: before that, clean diesel is added, and your filter is flushed or changed as needed. The engine is fired up next and checked to make sure it runs properly, all before we head off. Unstarted vehicles mostly mean a half-hour job after the moment we arrive. The equipment is safe on a live forecourt, and quiet enough for a driveway late at night. Your insurer usually wants the engineer's report and the VAT invoice, and both are yours once this job is done. Payment is on the day, with no money upfront. It's worth looking at your insurance while we travel to you: misfuelling cover comes with plenty of policies. ## About New Longton New Longton is a village in Lancashire, situated near the River Ribble at an elevation of 26 metres. New Longton lies close to the city of Preston, approximately 3 miles to the west, and is surrounded by nearby places such as White Stake, Hutton, and New Gate. New Longton has a population of around 1934 people and predominantly consists of semi-detached housing. New Longton is located in the North West region of England, about 188.6 miles from London. ## AdBlue drains about New Longton, and Lancashire beyond New Longton is a village, and our teams that cover it also work the towns around it, Hutton and New Gate among them, across the PR postcode area. Fastest of all: give a PR4 4 postcode to the van. The vehicle remains where it is. We drain it where it is — a side street close to All Saints, a lay-by on the way to Chapel Lane Park, a driveway. If you're near a boundary, or somewhere hard to describe like the back of St Oswald's Church, ring and ask instead of guessing. ## For New Longton motorists, the short version Tip nothing until you have read the cap. Even so AdBlue in your diesel tank? Petrol in Diesel will empty it where it is, wherever across Lancashire: keep it off then phone 0333 366 0103.