--- title: Grey Legs: AdBlue in a Diesel Tank, Explained canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/grey-legs-east-riding-of-yorkshire/ location: Grey Legs county: East Riding of Yorkshire latitude: 53.796070 longitude: -0.356150 service: AdBlue in a Diesel Tank updated: 2026-10-25 --- # Grey Legs: How Does AdBlue End Up in a Diesel Tank, and How Do You Avoid It? Stop reading for a moment when the diesel tank already has AdBlue in it: ignition off, motor off, then phone 0333 366 0103. Caught before your motor runs, it's usually a drain and a thorough flush, done where the car is in Grey Legs. Nothing happened yet? Further down, the page covers the reasons it happens and the how to avoid it for good. ## AdBlue in a diesel car: two tanks, two fillers Diesel feeds the engine — yet plenty of current diesels driven about Grey Legs and West Carr hold another fluid too. The exhaust, not the motor, is where AdBlue ends up: sprayed into the gas to fresh it, from its own tank. Every tank comes with one filler of its own. Some cars keep the AdBlue filler in your boot or under the bonnet; plenty more have both side by side under one flap. The diesel side is fuelled at the pump all the time. Much less regularly, the AdBlue side gets filled — mostly from a bottle, by someone thinking about where it goes. The error lives in that gap. ## How AdBlue in the diesel tank happens around Grey Legs Three things tend to line up, and carelessness is rarely one of them. On a drive off Pools Brook Park before work, or in the car park at Rising Sun on the way home: that's where the hurried top-up takes place. What is the reason for the rush? As AdBlue gets low your car tells you, and once it is gone, limp mode kicks in. Next, your hand goes for the cap it would have used on the old car — since a rental car, a new vehicle or a company car places the fillers somewhere your last one did not. 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. Whether it occurs in Kingswood or the middle of Grey Legs, it is the same few seconds. ## Telling the AdBlue filler from your diesel filler A few seconds is all the checks take — so run through them before you pour anything, on a drive in Bransholme or a forecourt in Grey Legs. - Read the cap rather than going by where it sits: AdBlue ones are frequently blue or marked "AdBlue", and diesel caps normally are not. - Many vehicles give AdBlue the smaller neck of the two. - A label inside your fuel flap frequently shows which fuel goes where, on plenty of motors. Look for it. - The handbook. If the filler is not by your diesel cap, it's in your 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 — when you pick up a hire or company car from somewhere like the car park at Cottingham. ## Topping up AdBlue without it reaching your diesel tank Wherever around East Riding of Yorkshire the light comes on, this is a routine for the day. - Switch off after you park — flat ground, engine off, and not rushed beside Knightley Way at the roadside. - Say "AdBlue" out loud as you unscrew the cap, once you find the AdBlue filler and reading it. Silly, perhaps, yet it does the trick. - Leave your diesel cap on. If both sit under one flap, check your diesel cap is still closed before you lift the bottle. - Using the bottle's own spout, tip slowly — and stop when it's full or the bottle is empty. - Only after that, start the vehicle: close the cap, check again, and make sure the diesel cap was never opened. Stop there if you find, at step two or three, that you've already poured into the diesel side. Don't go on to stage five. ## Grey Legs: already put AdBlue in your diesel tank? The short order of things, beginning with not starting your engine. The fuel pump starts on many diesels the moment the ignition goes on — so leave it off. Diluting it with extra diesel won't work, since AdBlue sinks to the base rather than blending — and that is where your fuel is sucked from. On a forecourt — Asda, BP or any other — the attendants will normally help roll the vehicle away, if you ask. Your own driveway in Grey Legs is where it should stay. If the motor has already run, stop as soon as it is safe then switch off. The next junction is where to come off if you are on the M62, under 15 miles from Grey Legs. About how far did it go? Crossing Grey Legs is less work than a run of under 5 miles towards Kingston upon Hull, and so say. ## What takes place when our engineers get there in Grey Legs Wherever the vehicle has stopped, be it by Kingswood Parks Primary School, near David Lloyd Raquet & Fitness Club or at home, the van travels to it. Those answers decide this work and our price, and so our technicians ask what got in, roughly how much, and whether it has run. That price comes over the phone, before any van leaves. Emptying the tank comes next, then a thorough flush of your system. Unlike petrol, AdBlue forms crystals and eats at some fuel-system metals, and none of that washes away unaided. Hence it counts more. A test is at the end: before that, clean diesel is added, and the filter is cleaned or replaced if necessary. Your engine is started next and tested to make sure it runs smoothly, all before our engineers leave. Most jobs are finished in about half an hour once our technicians arrive, provided your motor hasn't run — and the pumps our technicians use are fine on a live forecourt yet quiet at night outside a house. No money in advance; you settle up on the day. Afterwards, the VAT invoice and a report from the engineer are handed to you for your insurer. Plenty of insurance policies include misfuelling cover, and so it is worth checking yours while we are on the way. ## About Grey Legs itself Grey Legs is a suburban area located on the riverside in the East Riding of Yorkshire, with a low elevation of around 2 metres. Grey Legs sits near the city of Kingston upon Hull, approximately 3.7 miles away, and is close to other nearby places such as Kingswood and Dunswell. Grey Legs has a population of around 4989 people and is characterised by predominantly detached housing. ## AdBlue drains across East Riding of Yorkshire, Grey Legs included Midmeredales and Dunswell are among the places around Grey Legs, a residential suburb, that the same vans cover, over HU postcodes. The van reaches you fastest with a postcode starting HU7 3. There's no need to shift the vehicle. Anywhere it sits — beside TK Maxx, on a lay-by heading to Ings Plantation, on a drive — that's where it is drained. Tricky to pin down, like the back of Marks & Spencer? Close to a county line? Asking beats guessing, so phone. ## For Grey Legs drivers, the short version Read the cap before you pour. Even so AdBlue in the diesel tank? Petrol in Diesel can drain it where it stands, wherever across East Riding of Yorkshire: keep the vehicle off then call 0333 366 0103.