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Petrol in Diesel

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

Leave the engine and ignition off then ring 0333 366 0103 now — the rest can wait if AdBlue is already in the diesel tank. A drain plus a thorough flush, carried out just where your car sits around Poolsbrook, is usually all it needs when found before the engine runs. The rest of this page explains why it happens and how to ensure it does not — useful if you're reading before it has happened.

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AdBlue in a diesel car, and its separate tank

Plenty of current diesels on the roads about Poolsbrook and Staveley carry two liquids, not one. Diesel goes to the engine. Kept in a tank of its own, AdBlue is sprayed into the exhaust gas and cleans it.

Separate tanks, separate fillers. Under one flap, next to each other: that's the arrangement on many motors. Elsewhere, AdBlue's filler is beneath the bonnet or in your boot instead. The diesel side is fuelled at the petrol pump all the time. Someone who has to stop and work out where it goes usually fills the AdBlue side, from a bottle, and much less commonly. That gap is where the slip lives.

Poolsbrook: how AdBlue in your diesel tank occurs

Rarely is it carelessness: normally three things coincide.

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

Then, the hand reaches for the cap it knew on the old motor — since a rental car, a new vehicle or a company car places the fillers somewhere your last one didn't.

A spouted bottle meets no resistance at a diesel filler any more than at an AdBlue one. So the tip, after started, carries on. Whether it occurs in Netherthorpe or the middle of Poolsbrook, it is the same few seconds.

Flushing a diesel fuel system after AdBlue, Poolsbrook

The AdBlue filler and your diesel filler: telling them apart

Check these first, on a forecourt in Poolsbrook or a drive out in Duckmanton. A few seconds, no more.

  • Blue and lettering: an AdBlue cap is frequently blue, or says "AdBlue", where a diesel cap normally does not. Go by the cap, not its position.
  • Check the size: the smaller filler neck is, on many cars, the AdBlue one.
  • Open the flap and look for a label — plenty of vehicles mark which belongs in each filler just there.
  • Cannot find it next to the diesel inlet? In that case check below the bonnet or inside the 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 Chesterfield.

Keeping AdBlue out of the diesel tank when you top up

For the day the light appears — anywhere it is around Derbyshire — a routine to use.

  • Pull in somewhere level, motor off, with time in hand — not hurried on the side of The Grove.
  • Say "AdBlue" out loud as you unscrew the cap, once you find the AdBlue filler and read it. Daft, yes, but it works.
  • Leave the diesel cap on. If both sit under one flap, check the diesel cap is still closed before you lift the bottle.
  • Pour slowly, using the bottle's own spout. Stop when it's full or when the bottle is empty.
  • Only then, start your car: close the cap, check a second time, and make sure the diesel cap was never opened.

Stop there if you find, at stage two or three, that you've already poured into your diesel side. Step five is off limits.

Already put AdBlue in your diesel tank around Poolsbrook?

What follows is a short order of things, beginning with not starting your motor. Do not switch the ignition on; on plenty of diesels that alone runs the fuel pump. Diluting it with more diesel fails, because AdBlue settles to the base rather than blending — and that is where the fuel is pulled from.

If you're on a forecourt, whether it is the Morrisons or the Shell, ask the staff to help roll your car clear of the pump. Your own drive around Poolsbrook is the place it stays.

If the engine has already run, stop as soon as it is safe and switch off. On the M1, under a mile from Poolsbrook, that means the next exit. Distance matters — a quick hop across Poolsbrook is a smaller job than driving under 15 miles towards Sheffield — so tell us roughly how far it went.

What takes place when our technicians turn up around Poolsbrook

Wherever the vehicle has stopped, whether by Poolsbrook Primary Academy, beside The Salvation Army - Staveley or on your own drive, our van comes to it. What liquid went in, the quantity, and if it ran: our technicians ask since those answers set both work and quote. The quote comes on the call, ahead of any van leaving.

Next: draining, then a thorough flush of the whole system. Much more than with petrol, it matters with AdBlue: crystals form, certain metals are attacked, and none of that washes away unaided, however long it is left. After the fuel filter is flushed — or renewed, where needed — clean diesel goes in, and finally the vehicle gets tested. Before leaving, our technicians start the car and check that it is running smoothly.

Unrun vehicles usually need a half-hour visit after the moment we arrive. The kit is safe on a live filling station, and hushed enough for a driveway after dark. You pay on the day, with nothing upfront, and get a VAT invoice and an engineer report for your insurer. While we travel, take a look at your insurance documents; plenty carry cover for misfuelling.

About Poolsbrook itself

Poolsbrook is a small suburban area in Derbyshire, situated near the River Rother and close to the city of Sheffield. Poolsbrook has a relatively low elevation of 52 metres and is located near several other local places, including Netherthorpe, Woodthorpe, and Lowgates. Poolsbrook is characterized by its semi-detached housing and quiet residential atmosphere.

AdBlue drains around Poolsbrook and across Derbyshire

As a residential suburb, Poolsbrook has the same vans as nearby areas — Woodthorpe, Lowgates — right across S postcodes and the wider area beyond. Give a postcode that starts S43 3, and the van arrives fastest.

Your car stays put. Anywhere it stands — beside Duckmanton Methodist Church, in a lay-by en route to Poolsbrook Country Park, at home — that is where it is drained. If you're close to a boundary, or somewhere hard to explain like the back of St John the Baptist, ring and ask instead of guessing.

The short version for Poolsbrook people

Before you tip, read the cap. AdBlue in your diesel tank after all? Leave the car switched off then call 0333 366 0103; Petrol in Diesel empties it where it stands, across Derbyshire.

Call 0333 366 0103