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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 Measborough Dike

Leave the motor and ignition off then phone 0333 366 0103 now — the rest can wait when AdBlue is already in your diesel tank. Caught before your motor runs, it's generally a drain and a thorough flush, done where the vehicle is in Measborough Dike. Here in advance? In that case what follows covers why it comes about and what to prevent it ever happening.

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AdBlue in a diesel vehicle, and its separate tank

No single liquid but two: that is what many newer diesels near Measborough Dike and Stairfoot run, with diesel for your motor. The exhaust, not the engine, is where AdBlue ends up: dosed into the gas to fresh them, from its own tank.

There's a filler for every tank. On a lot of motors the two sit side by side under the same flap; on others the AdBlue filler is in the boot or under the bonnet. At the petrol pump, your diesel side gets filled constantly. Much less commonly, the AdBlue side is filled — normally from a bottle, by a person thinking about where it goes. It's in the gap that the error happens.

How does AdBlue in the diesel tank happen in Measborough Dike?

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

On a driveway off Barberry Court before work, or in the car park at Corner Pocket on the way home: that's where the rushed top-up happens. What is the reason for the rush? As AdBlue runs low the car tells you, and once it's gone, limp mode follows.

Then, your hand reaches for the cap it knew on the old car — since a hire car, a new vehicle 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, and so nothing stops the tip once it has started. The same few seconds settle it, in the middle of Measborough Dike or out in Kendray.

Flushing a diesel fuel system after AdBlue, Measborough Dike

Telling the AdBlue filler from the diesel filler

Whether a Measborough Dike forecourt or a drive over in Worsbrough Common, spend a couple of seconds on these before anything is poured in.

  • Blue and marking: an AdBlue cap is regularly blue, or says "AdBlue", where a diesel cap usually doesn't. Trust the cap, not its position.
  • The size. On plenty of cars the AdBlue filler neck is the smaller of the two.
  • Lift the flap and look for a label — many vehicles show which goes in which inlet just there.
  • The handbook. If the filler isn't by the diesel cap, it's in your boot or under the bonnet, and the handbook says which.
  • The person who drove it last. On a hire or company car picked up from somewhere like the car park at Barnsley, ask before you leave, not when the light comes on.

AdBlue top-ups that never reach your diesel tank

A routine for the day the light comes on, wherever in South Yorkshire that is.

  • Switch off once parked — level ground, motor stopped, and not in a rush by Vaal Street on the verge.
  • Locate the AdBlue filler, check the cap, and say the word "AdBlue" aloud as you unscrew it. It seems silly. It does the trick.
  • If both sit under one flap, check the diesel cap is still closed before you lift the bottle — and leave it on.
  • Pour slowly, using the bottle's own spout. Stop when it's full or when the bottle is empty.
  • Only then, start the car: close the cap, check once more, and make sure your diesel cap was never opened.

Stop there if you find, at stage two or three, that you have already poured into your diesel side. Skip step five entirely.

Put AdBlue in the diesel tank around Measborough Dike already?

Then the order of things is short. Don't start your engine. The fuel pump runs on plenty of diesels as soon as the ignition goes on — and 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 your tank, where the fuel is drawn from.

At a forecourt — TotalEnergies, JET or any other — the attendants will normally help push your car clear, if you ask. Leave it where it is if you are on your own drive around Measborough Dike.

If your engine has already run, stop as soon as it is safe then switch off. Measborough Dike lies under 3 miles from the M1; there, take the first exit. Tell us about how far it went: a run towards Wakefield, under 10 miles away, is a bigger job than a short hop across Measborough Dike.

What takes place when our technicians arrive around Measborough Dike

Outside The Forest Academy, close to Oaks Colliery Disaster Memorial or on your own drive: wherever the car has stopped, our technicians come to it. We ask what went in, roughly how much, and if it has run, because the answers determine this work and our price. On the phone call itself, you are told the quote — ahead of dispatch.

After that: draining, then a full flush of the entire system. With AdBlue that counts more than with petrol: it crystallises and is corrosive to some of the metals in a fuel system, and so it does not wash out on its own. The filter cleaned or, where it must be, replaced; fresh diesel in; and then a test of your vehicle. Before leaving, our technicians fire it up and check that it's running properly.

Unrun cars usually mean a half-hour job from the moment we arrive. The kit is safe on a live forecourt, and hushed enough for a residential street after dark. Nothing in advance; you settle up on the day. At the end, a VAT invoice and a report from the engineer go to you for your insurer. While we travel, have a look at your insurance documents; plenty include cover for misfuelling.

About Measborough Dike itself

Measborough Dike is a suburban area in South Yorkshire, situated near the River Dearne and close to the towns of Kendray and Hoyle Mill. Measborough Dike has a mix of semi-detached housing and local amenities, with nearby Cundy Cross and Wakefield providing further services. Measborough Dike sits at an elevation of 84 metres, within the wider Yorkshire and the Humber region.

AdBlue drains across South Yorkshire, Measborough Dike included

Measborough Dike is a residential suburb, and our teams that cover it also work the places around it, Hoyle Mill and Cundy Cross among them, across the S postcode area. A postcode starting S70 3 gets the van to you fastest.

The vehicle remains put. A driveway, a lay-by on the way to Hen Pen, a side street near St Andrew: our technicians drain the vehicle where it is. Guessing won't help behind Bethel Chapel, close to a border, or somewhere hard to pin down; phone and ask.

The short version for Measborough Dike people

Always, the cap; then, the pour. Still AdBlue in the diesel tank? Petrol in Diesel can drain it wherever it stands, anywhere around South Yorkshire: keep it off then phone 0333 366 0103.

Call 0333 366 0103