--- title: Explained: AdBlue in a Diesel Tank Cross Lanes canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/cross-lanes-wrexham/ location: Cross Lanes county: Wrexham latitude: 53.016720 longitude: -2.930830 service: AdBlue in a Diesel Tank updated: 2026-10-03 --- # Why It Happens and How to Avoid It: AdBlue in a Diesel Tank in Cross Lanes Pause here a minute if your diesel tank already has AdBlue in it: ignition off, motor off, then phone 0333 366 0103. A drain plus a full flush, carried out just where the vehicle sits around Cross Lanes, is usually all it needs when found before your engine runs. The rest of this page explains why it occurs and how to make sure it doesn't — useful if you are reading ahead of time. ## AdBlue in a diesel motor, and its separate tank Plenty of current diesels on the roads round Cross Lanes and Bangor-on-Dee carry two liquids, not one. Diesel goes to your engine. AdBlue's own tank holds it, and from there it is sent to your exhaust, and there a spray cleans the gas. There is a filler on every tank. On a lot of motors the two sit side by side under the same flap; on others the AdBlue filler is in the boot or under the bonnet. The diesel side is fuelled at the pump all the time. The AdBlue side is topped up far less frequently, usually from a bottle, and usually by a person who has to stop and think where it goes. That gap is where the error lives. ## How does AdBlue in your diesel tank happen in Cross Lanes? Seldom is it carelessness: normally three things line up. On a drive off Bedwell Road before work, or in the car park at the pub in the village on the way home: that's where the rushed top-up takes place. What is the reason for the rush? As AdBlue runs low the car tells you, and if it's empty, limp mode follows. The old car's filler is where your hand goes — yet a rental car, a new motor or a company car keeps the fillers somewhere else. That's a second thing: a strange car. And the bottle fits. A bottle with a spout goes into a diesel filler as easily as an AdBlue one, and so nothing stops the tip after it has started. The same few seconds decide it, in the middle of Cross Lanes or out in Talwrn. ## How to tell the AdBlue filler from the diesel one Look at these before pouring, at a forecourt in Cross Lanes or a drive out in Marchwiel. Seconds, no more. - Position misleads; the cap does not. AdBlue caps are often blue or carry the name "AdBlue" — diesel ones usually don't. - On many cars, size gives it away: AdBlue gets the smaller filler neck. - Lift the flap and check for a label — plenty of vehicles mark what goes in which filler just there. - In the boot or under the bonnet: that's where your filler sits if it is not by your diesel cap, and the handbook tells you which. - Check with the person who drove it last — before you leave, not when the light comes on — if you pick up a hire or company car from somewhere like the car park outside Wrexham Central. ## Keeping AdBlue out of your diesel tank when you top up A routine for the day the light comes on, wherever in Wrexham that is. - Turn off once parked — flat ground, motor stopped, and not in a rush beside Bedwell Crescent on the verge. - Find the AdBlue filler, check the cap, and say the name "AdBlue" out loud as unscrewing it. It sounds daft. It works. - Leave your diesel cap on. If both sit under one flap, check your diesel cap is still closed before you lift the bottle. - Tip slowly, using the bottle's own spout. Stop when it's full or when the bottle is empty. - Shut the cap, then look once more — confirm the diesel cap stayed closed throughout. After that, start the car. Spot at stage two or three that it's already gone into your diesel side? Then stop just there. Don't go on to stage five. ## Cross Lanes: already put AdBlue in your diesel tank? Do not start the engine: that is where the short order of things begins. On many diesels your ignition alone runs the fuel pump, and so don't switch the car on. Thinning it with more diesel fails, because AdBlue settles to the bottom rather than mixing — and that is where the fuel is drawn from. Ask the attendants to help push your car clear of the petrol pump if you're on a forecourt — the Texaco, the Taurus Service Station or somewhere else. Your own drive around Cross Lanes is the place it stays. Where your motor has run by now, stop somewhere safe and switch the vehicle off. The next junction means where to come off when you're on the M53, under 15 miles from Cross Lanes. About how far did it go? Hopping across Cross Lanes is less work than a run of under 5 miles to Wrexham, so tell us. ## Cross Lanes: what happens when we get there Our engineers come to your car wherever it has stopped, whether that is outside Shocklach Oviatt CofE Primary School, close to War Memorial or on your own drive. The replies decide the work and our quote, so our engineers ask what got in, about how much, and whether it has run. Nobody sets off before you have had our price over the phone. Then that tank is emptied and your system rinsed thoroughly. Unlike petrol, AdBlue forms crystals and attacks certain fuel-system metals, and none of it washes out unaided. Hence it matters more. After your filter is cleaned — or renewed, if needed — fresh diesel goes in, and finally the vehicle is tested. We do not leave until it has been started and is running smoothly. Unstarted vehicles usually need a half-hour visit after arrival. The kit is safe on a live forecourt, and hushed enough for a driveway after dark. You pay on the day, with nothing upfront, and get a VAT invoice and an engineer report for your insurer. Misfuelling cover is part of plenty of insurance policies — so use the wait to look at yours. ## About Cross Lanes Cross Lanes is a small village in Wrexham, situated inland at an elevation of 43 metres, approximately 3.4 miles from Wrexham city. Cross Lanes is characterized by its predominantly detached housing stock and is located near other local communities such as Talwrn and Pentre Maelor. Cross Lanes has a population of around 556 residents, who live in a rural setting not far from the Welsh countryside. ## AdBlue drains in Cross Lanes and across Wrexham Bedwell and Pentre Maelor are among the places near Cross Lanes, a rural village, that the same vans cover, over LL postcodes. The van gets to you fastest with a postcode starting LL13 0. Shifting your car is not needed. Draining happens right there, whether a driveway, a street near St Dunawd church, or a lay-by on the way to Marchwiel Covert. Assuming won't help at the back of Saint Deiniol and Saint Marcella Church, close to a boundary, or anywhere hard to describe; phone and check. ## In short, for Cross Lanes motorists Always, the cap; then, the pour. Petrol in Diesel empties it where it stands, anywhere across Wrexham, if AdBlue has gone in your diesel tank anyway — and so leave the vehicle off and call 0333 366 0103.