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Petrol in Diesel

0333 366 0103

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

AdBlue already in your diesel tank? In that case put this page down a moment, keep the ignition and motor off, and call 0333 366 0103. Usually, if the motor has not run, it is emptied and fully cleaned where the vehicle sits in Holcombe. If you are reading before it has happened, the remainder of this page is about why it takes place and how to make sure it does not.

Call 0333 366 0103

Two fillers, two tanks: AdBlue in a diesel motor

No single fluid but two: that's what plenty of modern diesels near Holcombe and Ham carry, with diesel for the motor. Your exhaust, not your engine, is where AdBlue ends up: sprayed into the fumes to clean it, from its own tank.

Every tank has one filler of its own. Many of vehicles have a single flap for the two, while some move the AdBlue filler to the boot or under the bonnet. At the petrol pump, the diesel side gets filled all the time. The AdBlue side is fuelled far less often, usually from a bottle, and usually by somebody who has to stop and think where it goes. The slip lives in that gap.

How AdBlue in the diesel tank occurs in Holcombe

Three things tend to line up, and carelessness is rarely one of them.

Haste follows from the warning. The car tells you as AdBlue runs low, and a dry tank sends it into limp mode — so the top-up happens in a rush, before work on a drive off Common Lane, or on the way home in the car park outside Holcombe Inn.

Then your car is strange. A hire car, a new vehicle or a company car puts the fillers where your last one did not, and the hand gets to for the cap it would have used on the old one.

Third, the spout fits: diesel filler or AdBlue filler, it slides in as easily, and after the pour starts, no part stops it. It's a few seconds, be it in Street or right in the heart of Holcombe.

Flushing a diesel fuel system after AdBlue, Holcombe

Which filler is for AdBlue, and which for diesel?

A couple of seconds is all the checks take — so run through them before you pour anything, on a driveway in Pitcot or a forecourt in Holcombe.

  • Colour and marking: an AdBlue cap is commonly blue, or says "AdBlue", where a diesel cap usually does not. Go by the cap, not where it sits.
  • Look at the size: the smaller filler neck is, on plenty of vehicles, the AdBlue one.
  • Open the flap and look for a label — plenty of vehicles mark what belongs in each inlet right there.
  • The handbook. If your filler is not by your diesel cap, it is in your boot or under the bonnet, and the handbook says which.
  • The person who drove the vehicle last. On a hire or company car picked up from somewhere like the car park at Frome, ask before you leave, not when the light comes on.

Keeping AdBlue out of the diesel tank when you top up

Anywhere across Somerset the light comes on, this is a routine for that day.

  • Not in a rush on the side of Kingsway, not on a slope, not with the engine running: park then switch off first.
  • Silly as it sounds, speaking "AdBlue" aloud while you unscrew the cap does the trick — after you have located the filler and read the cap.
  • The diesel cap stays on. When the two share a flap, confirm it's shut before lifting the bottle.
  • Slowly does it, through the bottle's own spout, until it's full or the bottle is empty.
  • Before you start the car, shut the cap and look a second time that your diesel cap was never opened off.

Stop there if you find, at stage two or three, that you've already poured into the diesel side. Never carry on to stage five.

Put AdBlue in your diesel tank around Holcombe already?

Don't start the engine: that's how the short order of things begins. The fuel pump starts on plenty of diesels as soon as the ignition is switched on — and so keep it off. Topping up with diesel won't dilute it: rather than mixing, AdBlue drops to the base of the tank, just where fuel is taken from.

Ask the staff to help roll your car away from the petrol pump if you're at a forecourt — the Texaco, the Shell or somewhere else. If you're on your own drive around Holcombe, leave the vehicle where it is.

Already run? Pull over when it's sensible, then switch off. The next junction is the place to leave when you're on the M32, under 25 miles from Holcombe. A short hop across Holcombe is a smaller job than a run towards Wells, under 10 miles away, so tell us about how far it went.

Our arrival in Holcombe, and what happens next

Outside Bishop Henderson Church of England Primary School, near St Andrew or on your own driveway: wherever the vehicle has stopped, our technicians come to it. The replies settle this work and our quote, and so our technicians ask what got in, about how much, and if it's run. On the phone call itself, you are told the price — before anything else.

Your system is then cleaned thoroughly, after your tank is cleared. Not like petrol, AdBlue forms crystals and eats at some fuel-system metals, and none of it clears away by itself. Hence it counts more. The filter is cleaned, or replaced where it needs to be; clean diesel goes in; and the vehicle is tested. We do not leave until it has been fired up and is running properly.

If the engine has not run, the majority of jobs take about half an hour once we're there, using pumps that are fine on a working forecourt and quiet enough to use outside a house after dark. Nothing upfront; you settle up that day. Afterwards, the VAT invoice and a report from the engineer go to you for your insurer. Misfuelling cover is included in plenty of insurance policies — so make use of the wait to check yours.

About Holcombe and where it is

Holcombe is a rural village in Somerset, situated inland at an elevation of 188 metres, approximately 8 miles from the city of Wells. Holcombe has a population of around 960 people and is characterised by predominantly detached housing. Holcombe is located near other small settlements such as Street, Edford, and Lipyeate, and is about 102.7 miles west of London.

AdBlue drains around Holcombe and across Somerset

Edford and Lipyeate are among the places near Holcombe, a rural village, that the same teams cover, over BA postcodes. Our van reaches you fastest with a postcode starting BA3 5.

The car remains where it is. The drain happens right there, be it a drive, a street near The Royal British Legion, or a lay-by towards Edford Wood. If you are near a boundary, or somewhere hard to describe like the back of Coleford Aqueduct, ring and ask instead of assuming.

In short, for Holcombe drivers

Always, the cap; then, the pour. Petrol in Diesel drains it on the spot, anywhere around Somerset, if AdBlue has gone in your diesel tank all the same — and so leave the car off and phone 0333 366 0103.

Call 0333 366 0103