Skip to content

Petrol in Diesel

0333 366 0103

Preventing AdBlue in a Diesel Tank in Hendredenny Park: Why It Occurs

If AdBlue is already in your diesel tank, stop reading for a moment: leave your motor and the ignition off then call 0333 366 0103. A drain and a full flush, done just where the vehicle stands in Hendredenny Park, is usually what it needs when caught before your motor runs. The rest of this page covers why it takes place and how to make sure it does not — handy if you're reading ahead of time.

Call 0333 366 0103

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

Many modern diesels on the roads around Hendredenny Park and Trecenydd carry two liquids, not one. Diesel goes to the engine. Your exhaust, not your motor, is where AdBlue ends up: sprayed into the gas to fresh it, from its own tank.

Each tank comes with one filler of its own. Plenty of cars have a single flap for the two, while some move the AdBlue filler to the boot or under the bonnet. Topping up the diesel side at the pump goes on constantly. A driver who has to stop and work out where it goes normally tops up the AdBlue side, from a bottle, and far less often. The mistake grows in the gap between them.

How does AdBlue in your diesel tank happen around Hendredenny Park?

Carelessness seldom causes it. What does is three things coming up together.

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

The old car's cap is where the hand reaches — yet a rental car, a new car or a company car keeps the fillers elsewhere. That's a second factor: an unfamiliar motor.

A spout-topped bottle meets no resistance at a diesel filler no more than at an AdBlue one. So the tip, once begun, keeps on. Hendredenny or the heart of Hendredenny Park: it is the same few seconds either way.

Flushing a diesel fuel system after AdBlue, Hendredenny Park

Which filler is for AdBlue, and which for diesel?

A couple of seconds is all these take — so run through them before you tip anything, on a drive in Watford Park or a forecourt around Hendredenny Park.

  • Check the cap rather than going by where it sits: AdBlue ones are often blue or marked "AdBlue", and diesel ones usually are not.
  • Look at the size: the smaller filler neck is, on plenty of cars, the AdBlue one.
  • The flap. Look inside the fuel flap for a label. Plenty of vehicles say there which fuel goes where.
  • In your boot or under the bonnet: that's where the filler sits if it is not by your diesel cap, 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 outside Aber, ask before you leave, not when the light comes on.

Topping up AdBlue without it reaching the diesel tank

Anywhere around Caerphilly the light comes on, this is a routine for the day.

  • Not in a rush on the side of Pembroke Court, not on a slope, not with the motor running: park and switch off properly.
  • Locate the AdBlue filler, read the cap, and speak the word "AdBlue" aloud while unscrewing it. It sounds daft. It does the trick.
  • Leave your diesel cap on. If both sit under one flap, check your diesel cap is still closed before you lift the bottle.
  • Using the bottle's own spout, tip slowly — and stop when it's full or the bottle is empty.
  • Only after that, start the car: close the cap, check a second time, and make sure your diesel cap was never opened.

Find during the second or third stage that AdBlue went into the diesel filler? That is where you stop. Never go on to stage five.

Put AdBlue in the diesel tank in Hendredenny Park already?

Brief order, then. First: your motor stays unstarted. Leave your ignition off too, because on plenty of diesels switching it on by itself starts the fuel pump. Filling up with diesel will not thin it: instead, AdBlue sinks to the bottom of your tank, right where the fuel is taken from.

Ask the attendants to help roll your car away from the petrol pump if you are on a forecourt — the Texaco, the BP or anywhere else. Leave it where it is if you are on your own drive around Hendredenny Park.

Already run? Pull over when it's safe, then turn off. The next junction is the place to leave when you are on the M4, under 5 miles from Hendredenny Park. A short hop across Hendredenny Park is a smaller job than a run towards Cardiff, under 10 miles away, so tell us roughly how far it went.

What happens when we arrive around Hendredenny Park

The van comes to your car anywhere it has come to rest — your own driveway, near Groeswen Chapel, or outside the local primary school. What liquid went in, the amount, and whether it ran: we ask since those answers set both work and quote. That price is given on the call, before any van leaves.

Next: a drain, then a thorough flush of the entire system. More than with petrol, it counts here: the crystals form, some metals corrode, and none of it washes away on its own, however long it sits. A test is at the end: before that, fresh diesel is added, and your filter is flushed or replaced if necessary. Your engine is started next and tested to make sure it runs correctly, all before our engineers go.

With pumps fine on a busy forecourt and quiet enough for use outside a house at night, most jobs where the engine has not run take roughly half an hour after we are there. Nothing in advance; you settle up that day. Afterwards, the VAT invoice and the report from the engineer go to you for your insurer. Before we get there, take a look at your insurance documents; many include cover for misfuelling.

About Hendredenny Park itself

Hendredenny Park is a locality situated on the riverside in Caerphilly, with an elevation of 158 metres and a mix of semi-detached housing. Hendredenny Park lies close to the nearby communities of Hendredenny and Glenfield Estate, and is approximately 7.6 miles from Cardiff. Hendredenny Park is part of a wider area that has developed around the River Rhymney, with easy access to the city of Cardiff. Hendredenny Park has a population of around 1298 residents.

AdBlue drains across Caerphilly, Hendredenny Park included

Glenfield Estate and Penyrheol are among the places around Hendredenny Park, a small village, that the same teams cover, throughout CF postcodes. The van gets to you fastest with a postcode starting CF83 2.

Moving the car isn't needed. Anywhere it stands — near The Meadows Wildlife Park, in a lay-by heading to Aneurin Park, at home — that is where it gets emptied. Ring and ask rather than assuming if you're near a border, or somewhere hard to describe, like the back of St Andrew's Church.

In short, for Hendredenny Park motorists

Before you pour, read the cap. AdBlue in your diesel tank after all? Leave the vehicle off then phone 0333 366 0103; Petrol in Diesel drains it on the spot, across Caerphilly.

Call 0333 366 0103