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Petrol in Diesel

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Preventing AdBlue in a Diesel Tank in Perthcelyn: Why It Occurs

Pause reading a minute if the diesel tank already holds AdBlue in it: ignition off, engine off, and call 0333 366 0103. Caught before the engine runs, it's generally a drain and a thorough flush, done where your car is in Perthcelyn. Not happened yet? Further down, the rest of the page covers the why it takes place and the ways to avoid it for good.

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AdBlue in a diesel motor: two tanks, two fillers

Plenty of newer diesels around Tyntetown, as well as Perthcelyn, run on two fluids; the motor gets only the diesel. Kept in a tank of its own, AdBlue is sprayed into your exhaust gas and cleans it.

Different tanks, separate fillers. Many of cars have a single flap for the two, while some move the AdBlue filler to your boot or under the bonnet. At the pump, your diesel side is topped up all the time. A driver who has to stop and think where it goes usually tops up the AdBlue side, from a bottle, and much less regularly. The mistake lives in that gap.

How AdBlue in your diesel tank happens around Perthcelyn

Seldom is it carelessness: usually three things coincide.

First, the warning. Low AdBlue brings a warning from the vehicle, and letting it run out leads to limp mode — so a rushed top-up, maybe before work off Brynheulog, or outside Osbourne Hotel on the way home that evening.

Unfamiliar vehicles come second, too. Rentals, new cars and company cars put their fillers differently, and habit reaches for the cap it used on the old one.

Lastly, the bottle goes in: diesel filler or AdBlue filler, it slides in as easily, and once the pour starts, nothing stops it. The same few seconds settle it, in the middle of Perthcelyn or out in Penrhiwceiber.

Flushing a diesel fuel system after AdBlue, Perthcelyn

Which filler is for AdBlue, and which for diesel?

Before you tip anything, whether on a drive in Darranlas or a forecourt around Perthcelyn, check these. They take a few seconds.

  • Colour and lettering: an AdBlue cap is often blue, or says "AdBlue", where a diesel cap usually does not. Trust the cap, not its position.
  • Look at the size: the smaller neck is, on plenty of vehicles, the AdBlue one.
  • A label inside your fuel flap frequently shows which fuel goes where, on many vehicles. Look for it.
  • The handbook. If the filler isn't by your diesel cap, it's in the boot or under the bonnet, and the handbook says which.
  • The person who drove the vehicle last. On a hire or company car picked up from somewhere like the car park at Penrhiwceiber, ask before you leave, not when the light comes on.

How to top up without AdBlue in your diesel tank

For the day the warning comes on — wherever you are in Rhondda Cynon Taf — a simple routine to use.

  • Park then switch off. Not on a slope, not with the engine running, and not in a rush on the side of Oak Terrace.
  • Say "AdBlue" out loud as you unscrew the cap, after you find the AdBlue filler and reading it. Silly, yes, but it does the trick.
  • Both under a single flap? Then make sure the cap on your diesel side stays closed before raising the bottle.
  • Stop once that tank is topped up or the bottle is empty; before that, tip slowly using the own spout.
  • Close the cap, then check once more — making sure your diesel cap stayed closed throughout. After that, start your car.

Spot at step two or three that it has already gone into your diesel side? So stop just there. Don't carry on to stage five.

Perthcelyn: already put AdBlue in the diesel tank?

Don't start your motor: that is how the short order of things begins. On plenty of diesels your ignition alone runs the fuel pump, so don't switch the vehicle on. Topping up with diesel will not thin it: rather than mixing, AdBlue sinks to the bottom of your tank, just where fuel is taken from.

The attendants at Esso, Texaco or any forecourt will normally help pushing the vehicle away if you ask. If you are on your own drive around Perthcelyn, leave the vehicle where it is.

Already started? Pull over once it's sensible, then turn off. Leave the M4 — under 15 miles out of Perthcelyn — at the first exit. A short hop across Perthcelyn is a smaller job than a run towards Cardiff, under 25 miles away, so tell us roughly how far it went.

When our engineers get there around Perthcelyn, what occurs?

Anywhere the vehicle came to rest, be it outside the local primary school, near St Winifred's Church or at home, our van travels to it. Both the work and our quote rest on three answers — which liquid, which quantity, and if it has run — so we ask. No one sets off before you've had our price by phone.

The system is then rinsed thoroughly, after the tank is drained. More than with petrol, it counts with AdBlue: crystals form, some metals are attacked, and none of that clears out unaided, no matter how long it is left. The fuel filter is cleaned, or replaced where it needs to be; clean diesel goes in; and the vehicle is tested. The engine is fired up next and tested to make sure it runs properly, all before we head off.

With pumps fine on a working forecourt and quiet enough to use outside a house at night, most jobs in which the motor has not run need about half an hour after we arrive. You pay on the day, with nothing upfront, and get a VAT invoice and an engineer report for your insurer. Wrong-fuel cover is part of many insurance policies — and so use the wait to check yours.

About Perthcelyn and where it is

Perthcelyn is a locality situated in the Rhondda Cynon Taf county of Wales, with its riverside setting and elevation of around 225 metres. Perthcelyn lies near the communities of Penrhiwceiber, Miskin, and Newtown, and is approximately 15 miles north of Cardiff. Perthcelyn has a population of around 2614 people, predominantly living in terraced housing.

Perthcelyn and Rhondda Cynon Taf: AdBlue drains across the area

Being a small village, Perthcelyn has the same vans as nearby places — Miskin, Newtown — right across CF postcodes and the surrounding area around them. Quote a postcode beginning CF45 3, and our van arrives fastest.

The car doesn't need to shift. The drain takes place right there, be it a drive, a street by Penrhiwceiber Institute and Community Hall, or a lay-by towards Glasbrook. If you're near a boundary, or somewhere hard to describe like the back of Penrhiwceiber Clock Tower And War Memorial, ring and ask rather than assuming.

Perthcelyn motorists: the short version

Read the cap before you tip. Still AdBlue in the diesel tank? Petrol in Diesel can empty it where it stands, wherever around Rhondda Cynon Taf: keep the car off then ring 0333 366 0103.

Call 0333 366 0103