Skip to content

Petrol in Diesel

0333 366 0103

Avoiding AdBlue in a Diesel Tank in Cults: Why It Occurs

AdBlue already in your diesel tank? In that case put this page down a moment, keep the ignition and motor off, then ring 0333 366 0103. Normally, if your motor hasn't run, it is emptied and thoroughly cleaned where the car sits in Cults. The remainder of this page covers why it occurs and how to make sure it doesn't — handy if you are reading ahead of time.

Call 0333 366 0103

AdBlue in a diesel vehicle, and its separate tank

No single liquid but two: that's how many newer diesels around Cults and Braeside run, with diesel feeding the motor. AdBlue's own tank keeps it, and from there it goes to your exhaust, and there spraying treats the gas.

There's a filler for every tank. Some motors put the AdBlue filler in the boot or under the bonnet; plenty of others place both side by side under one flap. The diesel side is filled at the petrol pump all the time. The AdBlue side is fuelled far less often, normally from a bottle, and normally by a person who has to stop and think where it goes. The slip lives in that gap.

Cults: how AdBlue in the diesel tank occurs

Carelessness rarely explains it. What does is three things lining up together.

Hurry follows from the warning. The car tells you as AdBlue runs low, and a dry tank puts it into limp mode — so the top-up happens quickly, before work on a driveway off School Road, or on the way home in the car park at The Bieldside.

Then the car is unfamiliar. A hire car, a new vehicle or a company car puts the fillers where your last one did not, and your hand reaches for the cap it would have used on the old one.

Lastly, the bottle fits: diesel filler or AdBlue one, it slides in as readily, and once the pour starts, nothing stops it. Whether it occurs in Bieldside or the middle of Cults, it is the same few seconds.

Flushing a diesel fuel system after AdBlue, Cults

How to tell the AdBlue filler from the diesel one

Be it a Cults forecourt or a driveway out in Banchory-Devenick, spend a few seconds on these before any is poured in.

  • Where it sits can mislead; the cap does not. AdBlue ones are often blue or bear the name "AdBlue" — diesel caps usually do not.
  • On many motors, the size gives it away: AdBlue gets the smaller filler neck.
  • A label inside the fuel flap often says which fuel goes where, on many cars. Check for it.
  • In the boot or under the bonnet: that's where the filler sits if it is not by the diesel cap, and the handbook tells you which.
  • Picking up a hire or company car, say at the car park at Aberdeen? Check with the person who drove the vehicle last before you set off, rather than when the light comes on.

Topping up AdBlue without it reaching your diesel tank

For the day the warning comes on — anywhere you are across Aberdeen City — a simple routine to follow.

  • Not in a rush on the side of North Deeside Road, not on a slope, not with the motor running: park then switch off properly.
  • Find the AdBlue filler and read the cap. Say "AdBlue" out loud as you unscrew it. It sounds silly and it works.
  • Both behind one flap? Then confirm the cap on your diesel side is still shut ahead of lifting the bottle.
  • Using the bottle's own spout, tip slowly — and stop when it is full or the bottle is empty.
  • Close the cap and check a second time. Make sure your diesel cap was never opened. Only then start the car.

Find at stage two or three that it has already gone into the diesel side? So stop right there. Never carry on to stage five.

Put AdBlue in your diesel tank around Cults already?

The short order of things, starting with no starting your engine. The fuel pump starts on many diesels the moment the ignition goes on — so keep it off. Do not top up with diesel to dilute it: AdBlue doesn't mix with diesel, it sinks to the bottom of your tank, where the fuel is pulled from.

At a forecourt — Co-op, Sainsbury's or another — the attendants will normally help push the car clear, if you ask. Your own drive around Cults is where it should stay.

Where the motor has run already, pull over safely and switch it off. Come off the M90 — over 50 miles out of Cults — at the first exit. A short hop across Cults is a smaller job than a run towards Aberdeen, under 5 miles away, so tell us about how far it went.

What takes place when our technicians get there around Cults

Our van comes to the car anywhere it has come to rest — your own drive, near Cults Library, or by the local primary school. Both the work and the price depend on three replies — what liquid, which quantity, and whether it's run — so we ask. You get that price by phone, before anyone heads out.

Emptying your tank comes next, followed by a full flush of your system. Much more than with petrol, it matters here: the crystals build up, some metals are attacked, and nothing clears out unaided, however long it sits. The fuel filter is cleaned, or replaced where it needs to be; fresh diesel goes in; and your car is tested. Before leaving, our engineers fire it up and check that it is running correctly.

If your motor hasn't run, most jobs take about half an hour once we're there, using pumps that are fine on a working forecourt and quiet enough to use outside a house at night. Paying happens on the day, not upfront, and you receive the documents your insurer wants: an engineer's report and a VAT invoice. Wrong-fuel cover is included in plenty of insurance policies — and so make use of the wait to check yours.

About Cults

Cults is a village situated on the banks of the River Dee in Aberdeen City, with an elevation of around 58 metres. Cults lies approximately 4 miles west of Aberdeen city centre and is characterised by its predominantly detached housing stock. Cults is close to nearby places such as Bieldside and Blairs, and is part of the wider Aberdeen urban area.

AdBlue drains round Cults, and Aberdeen City beyond

Over AB postcodes, the vans covering Cults — a village — work the surrounding locations too, Riverside of Blairs and Blairs included. Give a postcode beginning AB15 9, and our van gets there quickest.

No need to shift your car. Our technicians drain it where it is — a side street close to Cults Kirk Centre, a lay-by on the way to Allan Park, a drive. If you are close to a boundary, or somewhere hard to explain like the back of Nan Shepherd, ring and ask instead of guessing.

The short version for Cults people

Before you tip, read the cap. Even so AdBlue in your diesel tank? Petrol in Diesel can drain it wherever it stands, wherever across Aberdeen City: keep the vehicle off and call 0333 366 0103.

Call 0333 366 0103