--- title: AdBlue in a Diesel Tank Siddal: Explained canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/siddal-west-yorkshire/ location: Siddal county: West Yorkshire latitude: 53.705890 longitude: -1.849140 service: AdBlue in a Diesel Tank updated: 2026-10-13 --- # Avoiding AdBlue in a Diesel Tank in Siddal: Why It Happens AdBlue already in the diesel tank? In that case put this page down for now, leave the ignition and engine off, and phone 0333 366 0103. A drain and a thorough flush, done just where the vehicle sits in Siddal, is normally all it needs if caught before your engine runs. If you are reading before it has happened, the rest of this page is about why it takes place and how to make sure it does not. ## AdBlue in a diesel car, and its separate tank Plenty of modern diesels around Bank Top, like those in Siddal, run on two liquids; your motor takes just your diesel. AdBlue goes to your exhaust, where it is sprayed into the gas to fresh it, and it lives in a tank of its own. There is a filler for every tank. Under one flap, next to each other: that is the layout on many cars. On others, AdBlue's filler sits beneath the bonnet or in the boot instead. Topping up your diesel side at the pump goes on all the time. A driver who has to stop and think where it goes usually tops up the AdBlue side, from a bottle, and far less often. The mistake grows in the gap between them. ## Siddal: how AdBlue in the diesel tank occurs Carelessness rarely causes it. Instead is three things coming up at once. First, the warning. Low AdBlue brings a warning from the car, and letting it run dry leads to limp mode — so a rushed top-up, perhaps before work off Sion Hill, or at Siddal Place on the way home that evening. The old car's filler is where your hand goes — but a hire car, a new motor or a company car keeps the fillers elsewhere. That is a second thing: a strange car. A spout-topped bottle finds no obstacle at a diesel filler any more than at an AdBlue one. And so the pour, once begun, keeps on. Whether it happens in Salterhebble or the middle of Siddal, it is the same few seconds. ## Telling the AdBlue filler from the diesel filler Before you tip anything, whether on a drive in Stoney Royd or a forecourt in Siddal, check these. They take a few seconds. - Position misleads; the cap doesn't. AdBlue caps tend to be blue or bear the word "AdBlue" — diesel caps normally don't. - On plenty of motors, size tells: AdBlue has the smaller filler neck. - Open the flap and look for a label — plenty of cars mark which goes in which inlet just there. - The handbook shows where it lives when your filler is not next to the diesel cap: the boot, or under the bonnet. - Picking up a hire or company car, say at the car park at Halifax? Check with whoever drove it last before you set off, rather than once the light comes on. ## Keeping AdBlue out of your diesel tank when you top up Anywhere around West Yorkshire the light comes on, this is a routine for the day. - Pull in on level, motor off, with time to spare — not rushing on the side of Bottoms. - Daft as it sounds, saying "AdBlue" aloud as you unscrew the cap works — once you've located your filler and read it. - The diesel cap remains on. Where both share a flap, make sure it's closed before lifting the bottle. - Finish when the tank fills or the bottle is empty; until then, tip slowly through the built-in spout. - Only then, start your car: close the cap, check a second time, and make sure your diesel cap was never opened. If at stage two or three you find you have already poured into your diesel side, stop there. Do not go on to stage five. ## Siddal: already put AdBlue in your diesel tank? Then the order of things is short. Don't start the engine. Leave your ignition off too, because on plenty of diesels it by itself starts your pump. Filling up with diesel will not weaken it: rather than mixing, AdBlue sinks to the base of that tank, right where fuel is taken from. The attendants at Shell, Esso or any forecourt will usually help to push the vehicle clear when asked. Leave it where it is if you're on your own drive in Siddal. Stop as soon as it is safe and switch off, if the engine has already run. The next exit means the place to leave when you're on the M62, under 3 miles from Siddal. About how far did it go? Crossing Siddal is smaller work than a run of under 10 miles towards Bradford, so say. ## What happens when our technicians turn up in Siddal We come to your car wherever it has stopped, whether that is outside Siddal Primary School, near St. Andrew's Methodist Church or on your own driveway. Which fluid went in, the quantity, and whether it ran: we ask since the replies set both work and price. That price is given over the phone, before any van leaves. Then your tank is emptied and your system purged thoroughly. Much more than with petrol, it counts with AdBlue: crystals form, some metals corrode, and none of that clears out on its own, however long it sits. Your filter is cleaned, or replaced where it needs to be; fresh diesel goes in; and your car is tested. The engine is started next and tested to be sure it runs properly, all before our technicians head off. Unrun cars mostly mean a half-hour visit after arrival. The kit is fine on a live forecourt, and hushed enough for a residential street after dark. No money upfront; you settle up that day. Afterwards, a VAT invoice and the report from the engineer go to you for the insurer. Wrong-fuel cover is part of many insurance policies — so make use of the wait to check yours. ## About Siddal, for a moment Siddal is a suburban area in West Yorkshire, situated on the riverside at an elevation of 106 metres, with Salterhebble and Exley nearby. Siddal is characterized by its predominantly terraced housing stock, reflecting the typical architectural style of many northern English towns. Siddal is located approximately 7 miles from Bradford and 168 miles from London, making it a commuter-friendly location. Siddal sits within a wider urban context, with nearby Skircoat Green also forming part of the local community. ## AdBlue drains around Siddal, and West Yorkshire beyond Over HX postcodes, the vans covering Siddal — a residential suburb — work the nearby places too, Skircoat Green and Exley among them. Quickest of all: quote a HX3 9 postcode for the van. There's no need to shift your car. Anywhere it stands — near St Mark, on a layby heading to Bankhouse Wood, on a drive — that's where it gets drained. Awkward to explain, like the back of Siddal War Memorial? By a county line? Checking is better than assuming, so phone. ## For Siddal people, the short version Before you tip, read the cap. Even so AdBlue in the diesel tank? Petrol in Diesel can empty it wherever it stands, wherever in West Yorkshire: keep the car off and phone 0333 366 0103.