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Petrol in Diesel

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Why It Occurs and How to Prevent It: AdBlue in a Diesel Tank in Chapel End

Leave your engine and ignition off then phone 0333 366 0103 now — the rest can wait if AdBlue is already in the diesel tank. Caught before the motor runs, it is normally a drain and a thorough flush, done where the vehicle is in Chapel End. Not happened yet? Further down, the page covers the why it takes place and the ways to prevent it altogether.

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Why does AdBlue in a diesel car need its own filler?

Many newer diesels in Hartshill Green, as well as Chapel End, run on two fluids; your engine gets just the diesel. Stored in a tank of its own, AdBlue is fed into the exhaust gas and cleans it.

Different tanks, different fillers. Other cars keep the AdBlue filler in the boot or under the bonnet; plenty more place the two together behind one flap. Topping up your diesel side at the petrol pump goes on constantly. Much less often, the AdBlue side is topped up — normally from a bottle, by someone thinking about where it goes. That gap is where the slip lives.

How AdBlue in your diesel tank happens in Chapel End

It is seldom carelessness. Three things tend to line up.

Hurry comes from the warning. The car tells you as AdBlue runs low, and an empty tank puts the vehicle into limp mode — so the top-up gets done in a rush, before work on a drive off Coleshill Road, or heading home in the car park at Hartshill Inn.

The old car's filler is where your hand reaches — yet a rental car, a new motor or a company car puts the fillers elsewhere. That is the second factor: an unfamiliar vehicle.

Nothing halts the pour after it has started, since a bottle with a spout goes into a diesel filler as readily as an AdBlue one. The bottle fits. Plough Hill or the middle of Chapel End: it is the same few seconds in both.

Flushing a diesel fuel system after AdBlue, Chapel End

Telling the AdBlue filler from your diesel filler

Be it a Chapel End forecourt or a drive out in Whittleford, spend a few seconds on these before anything is poured in.

  • The cap. The AdBlue cap is often blue, or marked "AdBlue". Your diesel cap normally isn't. Read it rather than going by where it sits.
  • On many motors, the size tells: AdBlue has the smaller filler neck.
  • A label inside the fuel flap frequently shows which fuel goes where, on many cars. Check for it.
  • Can't find it next to the diesel inlet? In that case look beneath the bonnet or in your boot — the handbook will say where.
  • 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 outside Nuneaton.

Keeping AdBlue out of your diesel tank when you top up

Wherever around Warwickshire the light comes on, here is a routine for the day.

  • Turn off after you park — level ground, motor off, and not in a rush by Chancery Rise on the verge.
  • Silly as it sounds, speaking "AdBlue" aloud as you unscrew the cap works — once you've found your filler and read it.
  • The two under one flap? Then make sure the lid on your diesel filler stays closed before lifting the bottle.
  • Gently does it, through the bottle's own spout, until it's full or the bottle is empty.
  • Close the cap, and check once more — making sure the diesel cap stayed shut throughout. After that, start the car.

Spot at step two or three that it's already gone into the diesel side? Then stop right there. Leave out step five altogether.

Already put AdBlue in your diesel tank around Chapel End?

Do not start your motor: that is where the short order of things starts. Do not switch your ignition on; on many diesels that alone runs the fuel pump. Topping up with diesel will not dilute it: rather than mixing, AdBlue drops to the base of your tank, right where fuel is taken from.

The staff at Texcao, another forecourt nearby or another forecourt will normally lend a hand to push the car clear if asked. On your own drive around Chapel End? Then the vehicle stays put.

Already run? Pull over when it is safe, then turn off. Leave the M6 — under 5 miles out of Chapel End — at the first junction. Tell us roughly how far it went: a run towards Coventry, under 10 miles away, is a bigger job than a short hop across Chapel End.

What takes place when our technicians turn up in Chapel End

Our van reaches your car wherever it has come to rest — your own driveway, near St Annes RC Church, or outside Nathaniel Newton Infant School. What liquid went in, the quantity, and whether it ran: our technicians ask since the answers set the work and price. That quote comes over the phone, before any van leaves.

Draining the tank comes next, then a full flush of your system. Not like petrol, AdBlue leaves crystals and attacks certain fuel-system metals, and none of that washes out unaided. Hence it matters more. Testing comes at the end: before that, clean diesel goes in, and the filter is cleaned or changed if necessary. Before leaving, we fire it up and confirm that it's running correctly.

If the engine hasn't run, most jobs take about half an hour once we are there, using pumps that are safe on a busy forecourt and quiet enough to use outside a house after dark. No money upfront; you settle up that day. At the end, the VAT invoice and a report from the engineer go to you for your insurer. Misfuelling cover is part of plenty of insurance policies — so make use of the wait to look at yours.

About Chapel End itself

Chapel End is a suburban area in Warwickshire, situated on the riverside with an elevation of 132 metres. Chapel End lies approximately 9 miles north of Coventry and 92.6 miles northwest of London, near neighbouring areas such as Plough Hill and Hartshill. Chapel End has a population of around 5596 people, predominantly living in semi-detached housing. Chapel End is characterized by its residential community and proximity to the surrounding countryside.

AdBlue drains around Chapel End and across Warwickshire

Over CV postcodes, our vans that cover Chapel End — a residential suburb — work the nearby spots too, Ansley Common and Hartshill among them. Quickest of all: give a CV10 0 postcode to our van.

Shifting the vehicle isn't needed. A driveway, a lay-by on the way to Queen Elizabeth Rec, a side street close to Church of the Holy Trinity: our technicians drain the vehicle where it sits. Ring and ask rather than guessing if you are near a border, or somewhere hard to describe, like the back of Saint Mary & Saint John.

For Chapel End drivers, the short version

Always, the cap; after that, the tip. AdBlue in the diesel tank regardless? Leave the car off and ring 0333 366 0103; Petrol in Diesel empties it where it stands, across Warwickshire.

Call 0333 366 0103