--- title: Ogmore-by-Sea: AdBlue in a Diesel Tank, Explained canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/ogmore-by-sea-the-vale-of-glamorgan/ location: Ogmore-by-Sea county: The Vale of Glamorgan latitude: 51.462900 longitude: -3.633250 service: AdBlue in a Diesel Tank updated: 2026-10-12 --- # Ogmore-by-Sea: How Does AdBlue End Up in a Diesel Tank, and How Do You Prevent It? AdBlue already in your diesel tank? Then put this page aside for now, keep the ignition and engine off, and ring 0333 366 0103. Normally, when the engine has not run, it's drained and thoroughly rinsed where your vehicle sits in Ogmore-by-Sea. Here before the event? In that case the rest explains how it happens and what to prevent it ever happening. ## Why does AdBlue in a diesel motor need its own filler? Diesel goes to the engine — yet plenty of newer diesels seen about Ogmore-by-Sea and Ogmore carry a second fluid as well. Your exhaust, not your engine, is where AdBlue ends up: sprayed into the fumes to clean them, from a separate tank. There's 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 your boot or under the bonnet. At the pump, your diesel side gets filled constantly. A driver who has to stop and work out where it goes usually fills the AdBlue side, from a bottle, and far less commonly. The error lives in that gap. ## AdBlue in the diesel tank in Ogmore-by-Sea: how it takes place Carelessness seldom explains it. What does is three things lining up together. On a drive off Craig-Yr-Eos Place before work, or in the car park at the pub in the village on the way home: that is where the rushed top-up happens. What is the reason for the rush? As AdBlue gets low your car warns you, and if it is gone, limp mode follows. Next, your hand goes for the cap it would have used on the old car — since a rental car, a new car or a company car places the fillers where your last one did not. Lastly, the spout goes in: diesel filler or AdBlue one, it goes in as readily, and after the pour begins, no part halts it. Norton or the middle of Ogmore-by-Sea: it is the same few seconds in both. ## Which filler is for AdBlue, and which for diesel? Before you tip anything, whether on a drive in St Brides Major or a forecourt in Ogmore-by-Sea, check these. They take a couple of seconds. - Read the cap instead of going by where it sits: AdBlue ones are often blue or marked "AdBlue", and diesel caps normally are not. - Plenty of cars give AdBlue the smaller filler of the two. - The flap. Look inside your fuel flap for a label. Plenty of vehicles say there which fuel goes where. - The handbook. If your filler isn't by your diesel cap, it's in the boot or under the bonnet, and the handbook says which. - Check with the person who drove it last — before you leave, not when the light comes on — if you collect a hire or company car from somewhere like the car park outside Bridgend. ## How to top up without AdBlue in your diesel tank The day the light comes on, wherever in The Vale of Glamorgan, follow this routine. - Not in a rush on the side of Crompton Way, not on a slope, not with your motor running: park then switch off first. - Daft as it sounds, speaking "AdBlue" out loud as you unscrew the cap does the trick — once you've located your filler and read it. - The diesel cap remains on. Where the two sit under a flap, confirm it is shut before the bottle comes up. - Using the bottle's own spout, pour slowly — and stop when it is full or the bottle is empty. - Close the cap, then check again — making sure your diesel cap remained closed the whole time. After that, start your car. If at stage two or three you find you have already poured into the diesel side, stop there. Skip step five entirely. ## Ogmore-by-Sea: already put AdBlue in the diesel tank? Do not start the engine: that's how the short order of things starts. Keep your ignition off too, since on plenty of diesels switching it on alone runs the fuel pump. Don't top up with diesel to thin it: AdBlue does not mix with diesel, it sinks to the bottom of that tank, where the fuel is drawn from. If you are on a forecourt, whether it is the Oil4Wales or the Texaco, ask the staff to help roll the vehicle clear of the petrol pump. Your own driveway around Ogmore-by-Sea is where it stays. Stop as soon as it is safe and switch off, if the engine has already run. Ogmore-by-Sea sits under 5 miles from the M4; there, use the first junction. Distance matters — a short hop across Ogmore-by-Sea is a smaller job than heading under 25 miles towards Swansea — so say roughly how far it went. ## When we get there around Ogmore-by-Sea, what occurs? Anywhere your car has stopped, be it by the local primary school, beside Ogmore-by-Sea Hall or at home, the van travels to it. Those answers settle the work and the price, and so we ask what got in, roughly how much, and whether it's run. Nobody sets off before you've heard our price by phone. Emptying the tank comes next, then a thorough flush of the system. More than with petrol, it counts here: the crystals form, some metals are attacked, and none of it clears out unaided, however long it sits. After your filter is cleaned — or renewed, where needed — clean diesel is added, and finally your car is tested. Your engine is started next and checked to make sure it runs smoothly, all before we go. With pumps fine on a working forecourt and quiet enough to use outside a house at night, most jobs in which the motor has not run need roughly half an hour once our technicians arrive. Your insurer usually wants the engineer's report and your VAT invoice, and you get both at the end. Payment is on the day, with no deposit. Many insurance policies include misfuelling cover, and so it is worth checking yours while we are on the way. ## About Ogmore-by-Sea, briefly Ogmore-by-Sea is a coastal village in the Vale of Glamorgan, situated near the towns of Norton and Southerndown. Ogmore-by-Sea has a population of around 1356 people and is characterised by detached housing. Ogmore-by-Sea sits at an elevation of 53 metres, with views out to sea and along the coastline. Ogmore-by-Sea is located near the village of Heol-y-mynydd, and is within commuting distance of Swansea, the nearest city. ## AdBlue drains around Ogmore-by-Sea and across The Vale of Glamorgan Heol-y-mynydd and Southerndown are among the towns around Ogmore-by-Sea, a coastal village, that the same teams cover, over CF postcodes. The van gets to you fastest with a postcode starting CF32 0. The car does not need to move. Our engineers drain it where it is — a side street near Candleston Castle, a lay-by on the way to Craig Ddu, a drive. Ring and ask rather than guessing if you are near a border, or somewhere hard to explain, like the back of Ogmore Castle. ## In short, for Ogmore-by-Sea people Read the cap before you tip. If AdBlue has gone in the diesel tank regardless, leave the vehicle off and phone 0333 366 0103. Petrol in Diesel clears it where it sits, anywhere around The Vale of Glamorgan.