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Petrol in Diesel

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Pennyland: How Does AdBlue End Up in a Diesel Tank, and How Do You Prevent It?

If AdBlue is already in your diesel tank, stop reading for a moment: leave your motor and the ignition off and call 0333 366 0103. Caught before the motor runs, it is generally a drain and a thorough flush, done where the vehicle is in Pennyland. The remainder of this page explains why it happens and how to ensure it does not — useful if you're reading ahead of time.

Call 0333 366 0103

AdBlue in a diesel vehicle, and its separate tank

Plenty of current diesels on the roads about Pennyland and Willen Park carry two liquids, not one. Diesel goes to your engine. Its own tank keeps it, and from there it is sent to the exhaust, and there a spray treats the gas.

Every tank comes with one filler of its own. Many of motors share a single flap for both, while others put the AdBlue filler to the boot or under the bonnet. At the petrol pump, the diesel side is topped up all the time. Seldom filled, AdBlue normally comes from a bottle, tipped by a driver who has to stop and think what filler it needs. The slip lives in that gap.

How AdBlue in the diesel tank takes place around Pennyland

Carelessness seldom causes it. Instead is three things coming up at once.

The warning comes first. As AdBlue runs low your car tells you, and if it runs out completely, your vehicle goes into limp mode. So the top-up is done in a hurry: on a drive off Leopard Drive before work, or in the car park at The Eager Poet on the way home.

Next, your hand goes for the cap it would have used on the old vehicle — since a hire car, a new vehicle or a company car places the fillers somewhere your last one did not.

A spouted bottle meets no resistance at a diesel filler any more than at an AdBlue one. So the tip, after begun, carries on. Downhead Park or the middle of Pennyland: it takes the same few seconds either way.

Flushing a diesel fuel system after AdBlue, Pennyland

How to tell the AdBlue filler from the diesel one

Before you tip anything, whether on a drive in Neath Hill or a forecourt around Pennyland, check these. They take a couple of seconds.

  • Where it sits misleads; the cap doesn't. AdBlue caps are often blue or bear the name "AdBlue" — diesel ones normally do not.
  • On plenty of motors, the size gives it away: AdBlue gets the smaller filler neck.
  • Check inside the fuel flap: plenty of vehicles carry a label there saying which fuel goes where.
  • The handbook. If your filler isn't by the diesel cap, it's in the boot or under the bonnet, and the handbook says which.
  • The previous driver knows. Ask when you pick up a hire car or fleet car — at Milton Keynes Central's car park, perhaps — not once the light appears.

How to top up without AdBlue in your diesel tank

A routine for the day the light comes on, wherever across Buckinghamshire that is.

  • Park then switch off. Not on a slope, not with the motor running, and not in a rush on the side of Longcross.
  • Say "AdBlue" out loud as you unscrew the cap, once finding the AdBlue filler and read it. Daft, perhaps, but it does the trick.
  • Leave your diesel cap on. If both sit under one flap, check the diesel cap is still closed before you lift the bottle.
  • Slowly does it, through the bottle's own spout, till it's full or the bottle runs out.
  • Shut the cap, then look again — making sure the diesel filler remained closed the whole time. After that, start the vehicle.

Spot at step two or three that it has already gone into your diesel side? Then stop just there. Step five is off limits.

AdBlue in the diesel tank already, around Pennyland?

Then the order of things is short. Do not start your engine. The fuel pump starts on plenty of diesels the moment your ignition is switched on — so keep it off. Do not top up with diesel to thin it: AdBlue doesn't mix with diesel, it sinks to the bottom of that tank, where your fuel is pulled from.

On a forecourt — Esso, Shell or another — the attendants will usually help roll your car away, if you ask. On your own drive around Pennyland? Then the vehicle stays put.

If your motor has already run, stop as soon as it is safe and switch off. Pennyland lies under 3 miles from the M1; on it, take the next junction. Tell us about how far it went: a run towards Milton Keynes, under 3 miles away, is a bigger job than a short hop across Pennyland.

What happens when we arrive around Pennyland

Our engineers come to the vehicle wherever it has stopped, whether that is outside Brooksward School, near Dragonfly or on your own driveway. Those replies determine this work and the quote, so our technicians ask what went in, about how much, and whether it's run. That quote comes on the call, ahead of any van leaving.

After that: a drain, then a thorough flush of the entire system. More than with petrol, it counts here: the crystals form, some metals corrode, and nothing clears away unaided, however long it sits. Filter cleaned or, where it must be, swapped; clean diesel in; then a test of the car. Before we go, our technicians start it and confirm that it's running properly.

If the engine has not run, the majority of jobs take about half an hour once we are there, using pumps that are fine on a working forecourt and quiet enough to use outside a house at night. No money upfront; you settle up on the day. Afterwards, the VAT invoice and the report from the engineer go to you for the insurer. Misfuelling cover is part of many insurance policies — and so make use of the wait to check yours.

About Pennyland

Pennyland is a suburban area located on the outskirts of Milton Keynes in Buckinghamshire, situated near the riverside at an elevation of 79 metres. Pennyland sits close to several nearby parks, including Downhead Park and Bolbeck Park, and is characterized by its predominantly detached housing stock. Pennyland is also near Downs Barn, and its residents are approximately 46 miles from London. Pennyland has a population of around 6103 people.

AdBlue drains around Pennyland and across Buckinghamshire

Downs Barn and Bolbeck Park are among the places around Pennyland, a residential suburb, that the same vans cover, throughout MK postcodes. Quote a postcode that starts MK15 8, and the van arrives fastest.

No need to shift your car. Anywhere it stands — near Shire Horse, Gyosei Art Trail - 2, on a layby heading to Canal Open Space, on a drive — that is where it gets drained. Ring and ask rather than assuming if you're near a boundary, or somewhere hard to explain, like the back of Three-Post Bench Gyosei Art Trail - 3.

Pennyland motorists: the short version

Before you pour, read the cap. AdBlue in the diesel tank regardless? Keep the car off and phone 0333 366 0103; Petrol in Diesel empties it where it stands, throughout Buckinghamshire.

Call 0333 366 0103