Skip to content

Petrol in Diesel

0333 366 0103

Preventing AdBlue in a Diesel Tank in Heswall: Why It Happens

Pause here for a moment when the diesel tank already has AdBlue in it: ignition off, engine off, then phone 0333 366 0103. A drain plus a thorough flush, done just where your vehicle stands in Heswall, is usually what it takes when found before your motor runs. Reading in advance? Then the rest explains how it happens and how to prevent it ever happening.

Call 0333 366 0103

AdBlue in a diesel car: two tanks, two fillers

No single fluid but two: that's what plenty of modern diesels near Heswall and Pensby run, with diesel for the engine. Its own tank holds it, and from there it is sent to the exhaust, where spraying cleans the fumes.

Different tanks, separate fillers. Plenty of cars have a single flap for both, whereas some put the AdBlue filler to the boot or under the bonnet. Diesel gets filled at every filling station visit, again and again. Rarely filled, AdBlue usually goes in from a bottle, tipped by someone who must stop and think which cap to use. That gap is where the error lives.

How AdBlue in the diesel tank takes place around Heswall

Rarely is it carelessness: usually three things line up.

First, the warning. Low AdBlue triggers a message from your car, and running dry means limp mode — hence a hurried top-up, perhaps before work off Downham Road South, or at Harry Beswick on the way home after work.

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

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. Whether it takes place in Lower Village or the middle of Heswall, it's the same few seconds.

Flushing a diesel fuel system after AdBlue, Heswall

Telling the AdBlue filler from your diesel filler

Before you pour anything, whether on a drive in Barnston or a forecourt around Heswall, check these. They take a couple of seconds.

  • 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.
  • The size. On plenty of cars the AdBlue filler neck is the smaller of the two.
  • The flap. Look inside your fuel flap for a label. Many vehicles say there which fuel goes where.
  • The handbook shows which it is if the filler isn't next to the diesel cap: the boot, or under the bonnet.
  • Ask the person who drove it last — before you leave, not when the light comes on — if you collect a hire or company car from somewhere like the car park at the nearest station.

How to top up without AdBlue in your diesel tank

The day the light comes on, anywhere around Merseyside, use this routine.

  • Pull in on level, motor off, with time to spare — not hurried on the side of Rocky Lane.
  • Locate the AdBlue filler, check the cap, and say the word "AdBlue" out loud as you unscrew it. It seems daft. It works.
  • If both sit under one flap, check the diesel cap is still closed before you lift the bottle — then leave it on.
  • Gently is best, through the bottle's own spout, until it's full or the bottle runs out.
  • Close the cap and check once more. Make sure your diesel cap was never opened. Only then start the car.

Spot at stage two or three that it's already gone into the diesel side? So stop right there. Step five is off limits.

AdBlue in the diesel tank already, in Heswall?

Short list, then. First: your engine stays unstarted. The fuel pump starts on plenty of diesels the moment the ignition goes on — so keep it off. Topping up with diesel won't dilute it: rather than mixing, AdBlue sinks to the base of the tank, right where fuel is drawn from.

The staff at Shell, Texaco or any forecourt will usually help to push your car clear if asked. Your own driveway around Heswall is where it should stay.

When the engine has been run by now, stop safely then switch the vehicle off. On the M53, under 3 miles from Heswall, that means the next junction. Roughly how far did it go? Crossing Heswall is less work than a run of under 10 miles towards Liverpool, so tell us.

What happens when we arrive around Heswall

The van comes to the vehicle wherever it stopped — your own drive, near Heswall Library, or outside Heswall St Peter's CofE Primary School. Our technicians ask what went in, about how much, and if it's run, since those replies determine this work and our quote. You hear that price by phone, before anybody heads out.

Draining that tank comes next, followed by a full flush of your system. Unlike petrol, AdBlue forms crystals and attacks some fuel-system metals, and neither clears away unaided. Hence it counts more. Filter cleaned or, where it must be, swapped; fresh diesel in; and then a check of the vehicle. Before we go, our engineers fire it up and make sure that it's running smoothly.

Unrun cars usually mean a half-hour visit after the moment we arrive. The kit is fine on a busy forecourt, and quiet enough for a driveway after dark. Nothing upfront; you settle up that day. Afterwards, the VAT invoice and the report from the engineer are handed to you for your insurer. It's worth checking your policy as the van travels to you: misfuelling cover comes with many policies.

About Heswall, briefly

Heswall is a town on the Wirral Peninsula in Merseyside, situated on the coast of the Dee Estuary. Heswall sits at an elevation of around 88 metres, with views out to the Welsh coast and the Irish Sea. Heswall has a mix of residential areas, including the historic Lower Village, and is close to nearby places like Poll Hill and Gayton. Heswall is a commuter town, with many residents travelling to nearby Liverpool, which is approximately 7.5 miles away.

Heswall and Merseyside: AdBlue drains across the area

Poll Hill and Gayton are among the towns around Heswall, a coastal town, that the same teams cover, over CH postcodes. A postcode starting CH60 0 gets the van to you fastest.

No need to move your car. Anywhere it sits — near Church of the Good Shepherd, on a lay-by en route to Dawstone Park, on a drive — that's where it is emptied. Tricky to pin down, like the back of Hill House Garden Memorial? Close to a border? Checking beats guessing, so phone.

Heswall people: the short version

Read the cap before you tip. Even so AdBlue in the diesel tank? Petrol in Diesel will empty it wherever it stands, anywhere across Merseyside: keep the car off then ring 0333 366 0103.

Call 0333 366 0103