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Petrol in Diesel

0333 366 0103

Avoiding AdBlue in a Diesel Tank in St Woolos: Why It Happens

Stop here a minute when your diesel tank already has AdBlue in it: ignition off, engine off, then phone 0333 366 0103. Normally, if the engine has not run, it is emptied and fully rinsed where your vehicle is in St Woolos. Nothing happened yet? Below, the rest of the page covers the reasons it happens and the ways to prevent it altogether.

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AdBlue in a diesel vehicle: two tanks, two fillers

Diesel goes to the motor — but many current diesels seen round St Woolos and Newport carry another liquid too. Its own tank keeps it, and from there it is sent to the exhaust, and there spraying cleans the fumes.

Each tank has its own filler. On a lot of cars the two sit side by side under the same flap; on others the AdBlue filler is in your boot or under the bonnet. At the petrol pump, your diesel side gets filled constantly. Rarely filled, AdBlue normally comes out of a bottle, tipped by a driver who has to stop and think what cap it needs. It is in that gap that the error happens.

St Woolos: how AdBlue in the diesel tank takes place

Carelessness seldom explains it. What does is three things lining up at once.

Hurry comes from the warning. Your car warns you as AdBlue runs low, and an empty tank sends it into limp mode — so the top-up happens in a rush, before work on a driveway off Dewsland Park Road, or heading home in the car park at Red Lion.

Then, your hand reaches for the cap it would have used on the old vehicle — since a hire car, a new car or a company car places the fillers where 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. It's seconds, whether in Baneswell or bang in the centre of St Woolos.

Flushing a diesel fuel system after AdBlue, St Woolos

How to tell the AdBlue filler from the diesel one

A few seconds is all these take — so run through them before you tip anything, on a drive in Gold Tops or a forecourt around St Woolos.

  • Check the cap rather than going by position: AdBlue ones are often blue or marked "AdBlue", and diesel caps usually are not.
  • The size. On plenty of cars the AdBlue filler neck is the smaller of the two.
  • A label inside your fuel flap often shows which fuel goes where, on plenty of motors. Look for it.
  • The handbook. If the filler isn't by your diesel cap, it's in your boot or under the bonnet, and the handbook says which.
  • The previous driver will know. Ask as you collect a hire car or company car — at Newport (South Wales)'s car park, say — rather than when the light appears.

AdBlue top-ups that never reach the diesel tank

The day the light goes on, wherever in Newport, use this routine.

  • Park and switch off. Not on a slope, not with the engine running, and not in a rush on the side of Clifton Road.
  • Find the AdBlue filler and read the cap. Say "AdBlue" out loud as you unscrew it. It sounds daft and it does the trick.
  • The two under one flap? So confirm the lid on the diesel side is still shut ahead of lifting the bottle.
  • Gently does it, through the bottle's own spout, until it's full or the bottle is empty.
  • Before starting your car, close the cap and check again that your diesel cap was never came off.

Find at step two or three that it's already gone into your diesel side? Then stop just there. Do not go on to stage five.

St Woolos: already put AdBlue in the diesel tank?

Then the order of things is short. Don't start the engine. Leave your ignition off as well, because on many diesels switching it on by itself runs the fuel pump. Thinning it with extra diesel fails, because AdBlue sinks to the bottom instead of blending — and that is where the fuel is pulled from.

Ask the attendants to help push the vehicle clear of the pump if you're at a forecourt — the Asda, the Tesco or somewhere else. Leave it where it is if you're on your own drive around St Woolos.

Stop as soon as it is safe then switch off, if the motor has already run. The next junction means the place to come off when you're on the M4, under 3 miles from St Woolos. A short hop across St Woolos is a smaller job than a run towards Newport, under a mile away, and so tell us about how far it went.

Our arrival in St Woolos, and what occurs next

Our van comes to the car anywhere it stopped — your own driveway, beside 1839 Chartist Route Marker, or outside the local primary school. Those answers determine the work and the price, so our technicians ask what was put in, roughly how much, and whether it has run. On the phone call itself, you are told the quote — ahead of dispatch.

Draining the tank comes next, then a thorough flush of your system. More than with petrol, it counts here: crystals form, certain metals are attacked, and nothing clears away on its own, however long it is left. Testing comes at the end: before that, clean diesel goes in, and the fuel filter is flushed or changed as needed. After that our engineers start the engine and check it runs smoothly before leaving.

With pumps safe on a busy forecourt and quiet enough to use outside a house at night, most jobs in which your motor has not run take about half an hour once we are there. Payment happens on the day, not upfront, and you receive the documents an insurer wants: an engineer report and a VAT invoice. Many insurance policies include misfuelling cover, so it is worth checking yours while we are on the way.

About St Woolos

St Woolos is a suburban area in Newport, situated near the coast of Wales, with St Woolos being close to the city centre and other nearby places like Baneswell and Clytha Park. St Woolos has a mix of housing types, but is predominantly characterised by terraced homes. St Woolos sits at an elevation of 59 metres, looking out over the surrounding area.

AdBlue drains in St Woolos and across Newport

As a residential suburb, St Woolos shares its vans nearby areas — Clytha Park, Stow Park — right across NP postcodes and the wider area around them. Quote a postcode that starts NP20 4, and our van arrives fastest.

Moving your car isn't necessary. The drain happens on the spot, be it a drive, a street near British Women's Temperance Association Drinking Fountain, or a layby towards Clifton Park. If you're near a boundary, or somewhere hard to describe like the back of Chartist Burial Site, ring and ask instead of guessing.

The short version for St Woolos drivers

First, the cap; after that, the tip. If AdBlue has gone in your diesel tank regardless, leave the vehicle off and phone 0333 366 0103. Petrol in Diesel empties it where it sits, anywhere across Newport.

Call 0333 366 0103