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Petrol in Diesel

0333 366 0103

South Broomage: How Does AdBlue End Up in a Diesel Tank, and How Do You Avoid It?

Keep the motor and ignition off and phone 0333 366 0103 first — reading can wait if AdBlue is already in your diesel tank. Normally, when your motor hasn't run, it's emptied and fully purged where your vehicle is in South Broomage. If you're reading before it has happened, the rest of this page is about why it takes place and how to make sure it doesn't.

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

Plenty of modern diesels on the roads about South Broomage and Antonshill carry two liquids, not one. Diesel goes to the engine. Your exhaust, not your motor, is where AdBlue ends up: dosed into the fumes to clean it, from a separate tank.

Separate tanks, different fillers. Many of vehicles have a single flap for the two, whereas others move the AdBlue filler to your boot or under the bonnet. Diesel gets filled at each filling station call-out, again and again. The AdBlue side is filled far less commonly, normally from a bottle, and usually by someone who has to stop and think where it goes. It is in that gap that the error happens.

AdBlue in the diesel tank around South Broomage: how it happens

Three things tend to come together, and carelessness is seldom one of them.

On a driveway off Main Street before work, or in the car park outside The Commercial Hotel on the way home: that's where the rushed top-up happens. Why the rush? As AdBlue gets low your car tells you, and if it is gone, limp mode kicks in.

The old car's cap is where the hand goes — but a hire car, a new motor or a company car puts the fillers somewhere else. That is the second factor: an unfamiliar vehicle.

Third, the bottle goes in: diesel filler or AdBlue filler, it goes in as easily, and once the pour starts, no part halts it. Whether it occurs in Larbert or the middle of South Broomage, it's the same few seconds.

Flushing a diesel fuel system after AdBlue, South Broomage

Telling the AdBlue filler from your diesel filler

Be it a South Broomage forecourt or a drive out in Carron, take a few seconds over these before anything goes in.

  • The cap. The AdBlue cap is regularly blue, or marked "AdBlue". The diesel cap normally isn't. Read it instead of going by position.
  • Look at the size: the smaller filler neck is, on many cars, the AdBlue one.
  • Look inside the fuel flap: many cars carry a label there showing which fuel goes where.
  • The handbook. If your filler isn't by your diesel cap, it's in the boot or under the bonnet, and the handbook says which.
  • Ask the person who drove it last — before you leave, not when the light comes on — if you pick up a hire or company car from somewhere like the car park outside Larbert.

How to top up without AdBlue in the diesel tank

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

  • Not in a rush on the side of South Broomage Avenue, not on a slope, not with the motor running: park then switch off properly.
  • Silly as it sounds, saying "AdBlue" out loud as you unscrew the cap works — once you've located your filler and read it.
  • If both sit under one flap, check the diesel cap is still closed before you lift the bottle — then leave the car on.
  • Finish when the tank is topped up or the bottle runs dry; until then, pour slowly using its own spout.
  • Before starting your car, close the cap and check again that the diesel cap never opened off.

Stop there if you find, at stage two or three, that you have already poured into the diesel side. Don't go on to step five.

AdBlue in the diesel tank already, in South Broomage?

The short order of things, beginning with not starting the motor. On many diesels the ignition alone runs the fuel pump, so don't switch the vehicle on. Don't top up with diesel to dilute it: AdBlue does not mix with diesel, it sinks to the bottom of the tank, where your fuel is sucked from.

If you're at a forecourt, whether it is the Gulf or the BP, ask the attendants to help roll your car clear of the pump. At home in South Broomage? So the vehicle remains put.

Stop as soon as it is safe and switch off, if your motor has already run. The next exit means where to come off when you're on the M876, under a mile from South Broomage. Mileage matters — a short hop across South Broomage is a smaller job than driving under 10 miles to Stirling — so say roughly how far it went.

South Broomage: what happens when our engineers get there

The van comes to your car wherever it has come to rest — your own driveway, near Larbert Baptist Church, or by the local primary school. Both the work and the quote rest on three answers — what fluid, which quantity, and whether it has run — so our technicians ask. You get that quote on the phone, before anybody sets off.

Then your tank is cleared and your system purged thoroughly. More than with petrol, it matters with AdBlue: the crystals form, certain metals corrode, and none of it washes out unaided, no matter how long it sits. The filter flushed or, if needed, swapped; clean diesel in; and then a check of your car. Your engine is started next and tested to be sure it runs smoothly, all before we go.

Unrun vehicles mostly need a half-hour visit after the moment we arrive. The kit is fine on a live forecourt, and quiet enough for a driveway after dark. You pay on the day, with nothing upfront, and get a VAT invoice and an engineer report for your insurer. While we travel, take a look at your insurance documents; many include cover for misfuelling.

About South Broomage and where it is

South Broomage is a suburban area situated on the riverside in Falkirk, with a mix of housing types but predominantly detached homes. South Broomage sits at an elevation of 34 metres, close to the nearby towns of Larbert and Stenhousemuir, and is located near its counterpart North Broomage. South Broomage is within commuting distance of Stirling, which is approximately 7.6 miles away.

AdBlue drains across Falkirk, South Broomage included

Being a residential suburb, South Broomage shares its vans nearby places — Stenhousemuir, North Broomage — right across FK postcodes and the surrounding area around them. Our van reaches you fastest with a postcode starting FK5 3.

Moving the car isn't needed. Our engineers drain it where it is — a side street near Larbert West Church of Scotland, a lay-by on the way to Crownest Park, a driveway. Ring and ask rather than assuming if you're near a border, or somewhere hard to explain, like the back of War Memorial.

The short version for South Broomage people

Before you pour, read the cap. Still AdBlue in your diesel tank? Petrol in Diesel can drain it where it is, anywhere around Falkirk: keep it off and ring 0333 366 0103.

Call 0333 366 0103