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Petrol in Diesel

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

AdBlue already in the diesel tank? Then set this page aside a moment, leave your ignition and engine off, and ring 0333 366 0103. A drain and a thorough flush, carried out just where your car sits in Caenby, is usually what it needs if found before your engine runs. If you're reading before it has happened, the rest of this page is about why it occurs and how to make sure it doesn't.

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AdBlue in a diesel motor, and its separate tank

Plenty of newer diesels around Saxby, like those in Caenby, run on two fluids; the motor gets only the diesel. Kept in a tank of its own, AdBlue is fed into the exhaust stream to clean it.

There is a filler for each tank. On a lot of motors 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 pump, the diesel side gets filled constantly. Rarely filled, AdBlue usually comes from a bottle, tipped by someone who must stop and think what cap to use. It's in that gap that the slip happens.

How AdBlue in your diesel tank takes place in Caenby

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

First, the warning. Low AdBlue brings a message from your car, and running out leads to limp mode — so a rushed top-up, maybe before work off Chapel Court, perhaps at The Crown Inn on the way home that evening.

Then, the hand reaches for the cap it knew on the old motor — since a rental car, a new car or a company car places the fillers somewhere your last one did not.

Lastly, the spout fits: a diesel filler or AdBlue filler, it slides in just as easily, and after the pour starts, no part stops it. Glentham or the middle of Caenby: it is the same few seconds either way.

Flushing a diesel fuel system after AdBlue, Caenby

The AdBlue filler and the diesel filler: telling them apart

A few seconds is all the checks take — so check them before you tip anything, on a drive in Spital in the Street or a forecourt around Caenby.

  • Read the cap instead of going by where it sits: AdBlue ones are regularly blue or marked "AdBlue", and diesel caps normally are not.
  • The size. On many vehicles the AdBlue filler neck is the smaller of the two.
  • A label inside your fuel flap frequently says which fuel goes where, on plenty of cars. Check for it.
  • The handbook says where it is if the filler is not next to the diesel cap: the boot, or under the bonnet.
  • Picking up a hire or company car, say at the car park outside Market Rasen? Check with whoever drove it last before you set off, rather than when the light comes on.

Keeping AdBlue out of the diesel tank when you top up

When the light goes on, wherever around Lincolnshire, use this routine.

  • Park then switch off. Not on a slope, not with the engine running, and not in a rush on the side of High Street.
  • Locate the AdBlue filler, check the cap, and say the word "AdBlue" out loud as unscrewing it. It sounds daft. It works.
  • If both sit under one flap, check your diesel cap is still closed before you lift the bottle — and leave the vehicle on.
  • Tip slowly, using the bottle's own spout. Stop when it is full or when the bottle is empty.
  • Only then, start the car: close the cap, check again, and make sure the diesel cap was never opened.

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 the diesel tank in Caenby?

Do not start the motor: that's how the short order of things begins. On many diesels the ignition alone runs the fuel pump, and so do not switch it on. Do not top up with diesel to thin it: AdBlue does not mix with diesel, it sinks to the bottom of that tank, where your fuel is pulled from.

The staff at the nearest petrol station, BP or another forecourt will usually lend a hand to push the car away if you ask. If you are on your own driveway in Caenby, leave it where it stands.

Already started? Stop once it is safe, then switch off. On the M180, under 15 miles from Caenby, that means the next junction. A short hop across Caenby is a smaller job than a run towards Lincoln, under 15 miles away, so tell us about how far it went.

Our arrival in Caenby, and what occurs next

Outside Normanby Primary School, close to St Peter or on your own drive: wherever the vehicle has stopped, our technicians come to it. Our technicians ask what was put in, roughly how much, and whether it has run, because those answers decide this work and our quote. That price is given over the phone, before any van leaves.

Next: a drain, then a thorough flush of the entire system. Unlike petrol, AdBlue forms crystals and attacks certain fuel-system metals, and neither clears out unaided. Hence it counts more. A test is at the end: before that, clean diesel is added, and the fuel filter is flushed or replaced as needed. Then our engineers start the engine and confirm it runs properly before leaving.

If the engine has not run, the majority of jobs take about half an hour once we are there, using pumps that are fine on a busy forecourt and quiet enough to use outside a house at night. No money in advance; you settle up that day. Afterwards, a VAT invoice and the report from the engineer are handed to you for the insurer. While we travel, take a look at your insurance documents; many carry cover for misfuelling.

About Caenby

Caenby is a small hamlet situated on the riverside in Lincolnshire, with an elevation of 27 metres above sea level. Caenby lies near the cities of Lincoln and other nearby places such as Glentham and Normanby-by-Spital. Caenby is characterized by its predominantly detached housing stock and is located approximately 11 miles from Lincoln. Caenby is also about 131 miles north of London.

AdBlue drains across Lincolnshire, Caenby included

Normanby-by-Spital and Owmby-by-Spital are among the places around Caenby, a rural hamlet, that the same teams cover, over LN postcodes. Our van reaches you fastest with a postcode starting LN8 2.

There's no need to move your car. Draining happens right there, whether a drive, a road near Glentham Village Hall, or a lay-by towards Community Park. If you are near a border, or somewhere hard to explain like the back of St Peter & St Paul's Church, ring and ask instead of assuming.

In short, for Caenby drivers

Read the cap before you tip. AdBlue in your diesel tank after all? Leave the car off then ring 0333 366 0103; Petrol in Diesel drains it where it stands, across Lincolnshire.

Call 0333 366 0103