--- title: Low Hill: AdBlue in a Diesel Tank, Explained canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/low-hill-west-midlands/ location: Low Hill county: West Midlands latitude: 52.610440 longitude: -2.114500 service: AdBlue in a Diesel Tank updated: 2026-10-23 --- # How It Happens and How to Avoid It: AdBlue in a Diesel Tank in Low Hill AdBlue already in your diesel tank? In that case put this page down for now, leave your ignition and motor off, and phone 0333 366 0103. Normally, when your motor hasn't run, it is drained and thoroughly cleaned where the vehicle sits around Low Hill. The rest of this page explains why it happens and how to make sure it doesn't — handy if you're reading before it has happened. ## AdBlue in a diesel motor, and its separate tank Diesel goes to the engine — but many modern diesels driven round Low Hill and Bushbury Hill hold another fluid as well. The exhaust, not your engine, is where AdBlue goes: sprayed into the fumes to clean it, from its own tank. There is a filler on each tank. On a lot of cars the two sit side by side under the same flap; on others the AdBlue filler is in the boot or under the bonnet. At the petrol pump, your diesel side gets filled constantly. The AdBlue side is topped up far less often, normally from a bottle, and usually by someone who has to stop and think where it goes. That gap is where the error lives. ## How does AdBlue in the diesel tank happen around Low Hill? It is seldom carelessness. Three things tend to line up. First, the warning. Low AdBlue brings a message from your car, and letting it run dry leads to limp mode — so a rushed top-up, maybe before work off Thorne Avenue, perhaps outside Golden Lion on the way home after work. Then, the hand goes for the cap it knew on the old vehicle — because a rental car, a new motor or a company car puts the fillers somewhere your last one did not. A spouted bottle finds no obstacle at a diesel filler any more than at an AdBlue one. And so the pour, once started, carries on. The same few seconds decide it, in the middle of Low Hill or out in Old Fallings. ## How to tell the AdBlue filler from the diesel one A couple of seconds is all the checks take — so run through them before you pour anything, on a drive in Scotlands or a forecourt around Low Hill. - The cap. The AdBlue cap is commonly blue, or marked "AdBlue". The diesel cap usually is not. Read it instead of going by where it sits. - Plenty of motors give AdBlue the smaller neck of the two. - Check inside the fuel flap: many vehicles have a label there saying which fuel goes where. - Can't find it beside your diesel filler? Then check below the bonnet or inside the boot — the handbook will say where. - 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 at Wolverhampton. ## Topping up AdBlue without it reaching your diesel tank A routine for the day the light comes on, wherever in West Midlands that is. - Turn off once parked — flat ground, motor stopped, and not rushed by First Avenue at the roadside. - Daft as it sounds, saying "AdBlue" out loud as you unscrew the cap works — after you've found the filler and read it. - If both sit under one flap, check your diesel cap is still closed before you lift the bottle — then leave the car on. - Using the bottle's own spout, tip slowly — and stop when it's full or the bottle is empty. - Before starting the car, shut the cap and look again that your diesel cap never came off. Find at stage two or three that it has already gone into your diesel side? Then stop just there. Step five is off limits. ## Put AdBlue in your diesel tank in Low Hill already? What follows is a short order of things, beginning with not starting the engine. On many diesels the ignition alone runs the fuel pump, and so don't switch it on. Thinning it with extra diesel fails, because AdBlue settles to the base instead of blending — and that's where the fuel is sucked from. Ask the staff to help push your car clear of the petrol pump if you are on a forecourt — the Esso, the Texaco or anywhere else. Leave it where it is if you're on your own driveway around Low Hill. When your engine has been run already, stop safely then turn the car off. The next junction is where to leave if you're on the M54, under 3 miles from Low Hill. Roughly how far did it go? Crossing Low Hill is smaller a job than a run of under 3 miles towards Wolverhampton, so tell us. ## Our arrival around Low Hill, and what happens next We come to your car wherever it has stopped, whether that is outside Whitgreave Primary School, close to Low Hill Library or on your own driveway. Which liquid went in, the amount, and if it ran: our engineers ask because the answers set the work and price. That price comes on the call, before any van leaves. The system is then cleaned thoroughly, once your tank is drained. Not like petrol, AdBlue leaves crystals and eats at some fuel-system metals, and none of that clears out by itself. That is why it matters more. Once your filter has been flushed — or renewed, if needed — fresh diesel is added, and finally the car is tested. Next our technicians start it and confirm it runs smoothly before we leave. Most jobs are finished in roughly half an hour after our technicians arrive, as long as the engine has not run — and the pumps our technicians use are safe on a busy forecourt and quiet at night outside a house. Your insurer usually wants an engineer's report and your 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 Low Hill and where it is Low Hill is a suburban area located near Wolverhampton in the West Midlands, sitting at an elevation of 147 metres. Low Hill is characterized by its predominantly semi-detached housing stock, which reflects the residential development of the area. Low Hill is situated close to other nearby places, including Old Fallings, Elston Hall, and Newbolds, and is approximately 1.8 miles from Wolverhampton city centre. ## Low Hill and West Midlands: AdBlue drains across the area Over WV postcodes, the teams covering Low Hill — a residential suburb — work the surrounding spots too, Newbolds and Elston Hall among them. The van reaches you fastest with a postcode starting WV10 9. Your car stays put. Wherever it stands — near The Good Shepherd, in a layby en route to Bushbury Memorial Recreation Ground, at home — that is where it gets drained. Tricky to explain, like the back of Brave Boys of Bushbury Plaque? Close to a border? Asking beats guessing, and so ring. ## For Low Hill motorists, the short version First, the cap; then, the tip. Petrol in Diesel drains it on the spot, anywhere in West Midlands, if AdBlue has gone in the diesel tank all the same — so leave the car off and ring 0333 366 0103.