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Petrol in Diesel

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Preventing AdBlue in a Diesel Tank in Buckland Monachorum: Why It Occurs

AdBlue already in the diesel tank? In that case set this page aside for now, keep your ignition and motor off, and ring 0333 366 0103. Caught before the engine runs, it's normally a drain and a thorough flush, done where the vehicle is in Buckland Monachorum. Here before the event? In that case what follows explains how it happens and what to stop it happening at all.

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

Not one fluid but two: that's what many modern diesels around Buckland Monachorum and Milton Combe carry, with diesel for your engine. Kept in a tank of its own, AdBlue is sprayed into your exhaust stream to clean it.

Different tanks, separate fillers. 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. Topping up the diesel side at the petrol pump goes on constantly. Someone who has to stop and think where it goes usually fills the AdBlue side, from a bottle, and far less regularly. It is in the gap that the slip lives.

AdBlue in the diesel tank around Buckland Monachorum: how it occurs

It is rarely carelessness. Three things tend to line up.

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

Next, your hand goes for the cap it would have used on the old vehicle — since a hire car, a new motor or a company car places the fillers where your last one did not.

A spouted bottle meets no obstacle at a diesel filler no more than at an AdBlue one. And so the pour, after started, keeps on. It takes a few seconds, be it out in Crapstone or bang in the heart of Buckland Monachorum.

Flushing a diesel fuel system after AdBlue, Buckland Monachorum

Telling the AdBlue filler from your diesel filler

Whether a Buckland Monachorum forecourt or a driveway out in Horrabridge, spend a couple of seconds over these before any is poured in.

  • Blue and marking: an AdBlue cap is often blue, or says "AdBlue", where a diesel cap normally does not. Go by the cap, not its position.
  • The size. On many cars the AdBlue filler neck is the smaller of the two.
  • The flap. Look inside your fuel flap for a label. Many motors say there which fuel goes where.
  • The handbook says which it lives when your filler is not next to your diesel cap: your boot, or under the bonnet.
  • The previous driver knows. Ask as you pick up a hire car or company car — from Bere Alston's car park, say — rather than once the warning appears.

Topping up AdBlue without it reaching the diesel tank

A routine for the day the light comes on, wherever in Devon that is.

  • Not in a rush on the side of Cross Park, not on a slope, not with the motor running: park and switch off first.
  • Find the AdBlue filler and read the cap. Say "AdBlue" out loud as you unscrew it. It sounds silly and it works.
  • If both sit under one flap, check the diesel cap is still closed before you lift the bottle — and leave the vehicle on.
  • Using the bottle's own spout, pour slowly — and stop when it is full or the bottle is empty.
  • Close the cap and check again. Make sure your diesel cap was never opened. Only then start the car.

Stop there if you find, at step two or three, that you have already poured into your diesel side. Stage five stays off limits.

Already put AdBlue in your diesel tank in Buckland Monachorum?

Brief list, then. Top of that: your motor stays off. Leave the ignition off as well, because on plenty of diesels it by itself starts the pump. Don't top up with diesel to thin it: AdBlue does not mix with diesel, it sinks to the bottom of that tank, where the fuel is drawn from.

On a forecourt — Texaco, Morrisons or any other — the staff will usually help roll your car clear, if you ask. On your own drive around Buckland Monachorum? So the vehicle stays where it is.

If the motor has already run, stop as soon as it is safe then switch off. The next junction is where to leave when you're on the M5, under 50 miles from Buckland Monachorum. Tell us about how far it went: a run towards Plymouth, under 10 miles away, is a bigger job than a short hop across Buckland Monachorum.

What happens when we arrive in Buckland Monachorum

The van reaches your car anywhere it has come to rest — your own drive, near St Andrew, or by St Andrew's Church of England Academy. The replies settle this work and our quote, so our engineers ask what got in, roughly how much, and whether it has run. That price is given over the phone, ahead of any van leaving.

After that: a drain, then a full flush of the whole system. With AdBlue that counts more than with petrol: it crystallises and is corrosive to some of the metals in a fuel system, so it doesn't wash out on its own. Filter cleaned or, where needed, replaced; clean diesel in; and then a test of your vehicle. Next we start the car and confirm it runs correctly before leaving.

If the motor hasn't run, the majority of jobs take about half an hour once we are there, using pumps that are fine on a working forecourt and quiet enough to use outside a house at night. Your insurer usually wants the engineer's report and the VAT invoice, and you get both at the end. Payment comes on the day, with no deposit. While we travel, have a look at your policy; plenty include cover for misfuelling.

About Buckland Monachorum and where it is

Buckland Monachorum is a village in Devon, situated near the coast and approximately 8.7 miles from Plymouth. Buckland Monachorum has a population of around 680 people and is characterised by terraced housing. Buckland Monachorum sits at an elevation of 99 metres, looking out towards the surrounding countryside. Buckland Monachorum is close to nearby places such as Crapstone and Harrowbeer.

AdBlue drains across Devon, Buckland Monachorum included

Buckland Monachorum is a coastal village, and our vans that cover it also work the towns near it, Harrowbeer and Axtown among them, across the PL postcode area. Our van gets to you fastest with a postcode starting PL20 7.

The car does not need to move. Draining takes place on the spot, be it a driveway, a road near Buckland Monochorum Village Hall, or a lay-by towards The Garden House. If you are close to a boundary, or somewhere hard to describe like the back of The Garden House, ring and ask instead of assuming.

The short version for Buckland Monachorum motorists

Before you pour, read the cap. If AdBlue has gone in the diesel tank all the same, leave the vehicle off and ring 0333 366 0103. Petrol in Diesel drains it where it sits, anywhere across Devon.

Call 0333 366 0103