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Petrol in Diesel

0333 366 0103

How It Happens and How to Avoid It: AdBlue in a Diesel Tank in Sowerby

Pause reading a minute when your diesel tank already holds AdBlue in it: ignition off, motor off, then phone 0333 366 0103. Usually, if the motor has not turned, it's drained and fully flushed where the car is in Sowerby. Reading before the event? Then the rest covers how it happens and what to stop it happening at all.

Call 0333 366 0103

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

Plenty of modern diesels on the roads about Sowerby and Beechwood carry two liquids, not one. Diesel goes to the engine. Its own tank holds it, and from there it is sent to the exhaust, where spraying cleans the gas.

Separate tanks, separate fillers. Other vehicles keep the AdBlue filler in the boot or under the bonnet; plenty more have the two side by side behind one flap. The diesel side is topped up at the petrol pump all the time. The AdBlue side is topped up far less commonly, normally from a bottle, and normally by somebody who has to stop and think where it goes. The mistake lives in that gap.

How does AdBlue in the diesel tank take place in Sowerby?

Carelessness rarely explains it. Instead is three things coming up together.

The warning comes first. As AdBlue runs low the car tells you, and if it runs out altogether, the vehicle goes into limp mode. So the top-up is done in a hurry: on a drive off Highfield Place before work, or in the car park at The Church Stile Inn on the way home.

Then, your hand goes for the cap it would have used on the old motor — since a hire car, a new car or a company car puts the fillers somewhere your last one didn't.

And the bottle fits. A bottle with a spout goes into a diesel filler as easily as an AdBlue one, so nothing stops the pour after it has started. Sowerby Bridge or the heart of Sowerby: it is the same few seconds either way.

Flushing a diesel fuel system after AdBlue, Sowerby

How to tell the AdBlue filler from the diesel one

Whether a Sowerby forecourt or a driveway over in Triangle, spend a few seconds on these before any goes in.

  • Blue and marking: an AdBlue cap is regularly blue, or says "AdBlue", where a diesel cap usually does not. Trust the cap, not where it sits.
  • Look at the size: the smaller neck is, on plenty of motors, the AdBlue one.
  • Check inside the fuel flap: many cars have a label there showing which fuel goes where.
  • In your boot or under the bonnet: that is where your filler is if it is not by the diesel cap, 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 Sowerby Bridge.

Keeping AdBlue out of your diesel tank when you top up

The day the light comes on, wherever around West Yorkshire, follow this routine.

  • Park and switch off. Not on a slope, not with your engine running, and not in a rush on the side of Towngate.
  • Find the AdBlue filler, check the cap, and speak the word "AdBlue" aloud while you unscrew it. It seems daft. It works.
  • The diesel cap remains on. When both sit under a flap, confirm it's shut before lifting the bottle.
  • Pour slowly, using the bottle's own spout. Stop when it is full or when the bottle is empty.
  • Only after that, start the vehicle: close the cap, check a second time, and make sure the diesel cap was never opened.

Find during the second or third step that the bottle went into the diesel filler? That is where you stop. Skip step five altogether.

Sowerby: already put AdBlue in the diesel tank?

Then the order of things is short. Don't start your motor. The fuel pump starts on many diesels as soon as the ignition goes on — and so keep it off. Thinning it with more diesel won't work, because AdBlue settles to the base instead of mixing — and that's where your fuel is drawn from.

Ask the staff to help roll your car away from the petrol pump if you're on a forecourt — the Shell, the BP or anywhere else. On your own drive in Sowerby? Then your car remains where it is.

If the engine has already run, stop as soon as it is safe and switch off. On the M62, under 5 miles from Sowerby, that means the next junction. Distance matters — a short hop across Sowerby makes a smaller job than driving under 10 miles towards Bradford — so tell us roughly how far it went.

Our arrival around Sowerby, and what takes place next

Wherever the car has stopped, whether by Trinity Academy St Peter's, near Sowerby Castle or on your own drive, the van comes to it. We ask what went in, roughly how much, and if it has run, because those replies determine the work and our price. That quote comes on the call, ahead of any van leaving.

Then the tank is cleared and the system rinsed thoroughly. AdBlue crystallises and is corrosive to some of the metals in a fuel system, and so it doesn't wash out on its own — which is why the flush counts more with AdBlue than with petrol. The filter flushed or, if it must be, replaced; fresh diesel in; then a test of the car. Before we leave, our technicians start the engine and make sure that it's running smoothly.

Unstarted cars mostly mean a half-hour job after the moment we arrive. The kit is fine on a busy forecourt, and hushed enough for a driveway late at night. Payment happens on the day, not upfront, and you receive the paperwork an insurer wants: an engineer's report and a VAT invoice. Many insurance policies include misfuelling cover, and so it's worth checking yours while we are on the way.

About Sowerby, briefly

Sowerby is a suburban area in West Yorkshire, situated near the River Calder and close to the town of Sowerby Bridge. Sowerby sits at an elevation of 213 metres, overlooking the surrounding countryside. Sowerby is characterized by its semi-detached housing stock and is located near other local places such as Hubberton Green and Boulder Clough.

AdBlue drains in Sowerby and across West Yorkshire

Sowerby is a residential suburb, and our teams that cover it also work the places around it, Hubberton Green and Boulder Clough among them, across the HX postcode area. The van reaches you fastest with a postcode starting HX6 1.

Your car doesn't need to move. A drive, a lay-by on the way to Sowerby St. Peter's Cricket Club, a side street near St Peters' Community Centre: our engineers drain it where it sits. Ring and ask instead of guessing if you're close to a boundary, or somewhere hard to describe, like the back of Saint Peter's.

Sowerby drivers: the short version

Always, the cap; then, the pour. AdBlue in your diesel tank regardless? Keep the vehicle off and call 0333 366 0103; Petrol in Diesel drains it on the spot, across West Yorkshire.

Call 0333 366 0103