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Petrol in Diesel

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Preventing AdBlue in a Diesel Tank in Croy: Why It Happens

AdBlue already in the diesel tank? Then put this page aside for now, leave your ignition and motor off, and ring 0333 366 0103. Usually, if your motor hasn't run, it's drained and fully flushed where your car sits around Croy. Not happened yet? Further down, the page explains the reasons it occurs and the ways to prevent it for good.

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AdBlue in a diesel car: two tanks, two fillers

Plenty of newer diesels around Blackwood, like those in Croy, run on two fluids; your motor gets only the diesel. Your exhaust, not the engine, is where AdBlue ends up: sprayed into the fumes to fresh it, from a separate tank.

Every tank has a filler of its own. Many of cars share a single flap for the two, whereas some move the AdBlue filler to the boot or under the bonnet. Filling your diesel side at the petrol pump happens all the time. Rarely filled, AdBlue normally goes in out of a bottle, poured by someone who has to stop and think which filler it needs. The mistake grows in the gap between them.

How does AdBlue in the diesel tank occur in Croy?

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

First, the warning. Low AdBlue triggers a warning from your car, and letting it run out leads to limp mode — so a hurried top-up, maybe before work off Barbegs Crescent, perhaps at The Smiddy Inn on the way home after work.

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

Lastly, the bottle goes in: diesel filler or AdBlue filler, it goes in just as easily, and once the pour begins, no part stops it. Whether it takes place in Craigmarloch or the middle of Croy, it's the same few seconds.

Flushing a diesel fuel system after AdBlue, Croy

Which filler is for AdBlue, and which for diesel?

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

  • Check the cap rather than going by position: AdBlue ones are regularly blue or marked "AdBlue", and diesel caps usually aren't.
  • On plenty of cars, the size gives it away: AdBlue gets the smaller filler neck.
  • Open the filler flap and look for a label — plenty of vehicles mark which belongs in each filler right there.
  • Can't see it beside your diesel inlet? Then look beneath the bonnet or inside the boot — the handbook will say which.
  • Whoever had it before knows. Ask when you pick up a rental or fleet car — at the nearest station's car park, perhaps — rather than when the warning comes on.

Topping up AdBlue without it reaching your diesel tank

A routine for the day the light comes on, wherever across North Lanarkshire that is.

  • Park and switch off. Not on a slope, not with your engine running, and not in a rush on the side of Mcsparran Road.
  • Find the AdBlue filler, read the cap, and speak the word "AdBlue" out loud while you unscrew it. It sounds silly. It works.
  • The two under a single flap? Then make sure the lid on your diesel filler stays closed before lifting the bottle.
  • Pour slowly, using the bottle's own spout. Stop when it is full or when the bottle is empty.
  • Before you start the car, close the cap and check a second time that the diesel cap never opened off.

Find at the second or third stage that AdBlue went in the wrong filler? That is where you stop. Don't go on to step five.

Already put AdBlue in your diesel tank around Croy?

Then the order of things is short. Do not start the engine. Don't switch your ignition on; on plenty of diesels that alone runs the fuel pump. Filling up with diesel won't weaken it: instead, AdBlue sinks to the base of the tank, right where fuel is taken from.

At a forecourt — Tesco, Gulf or any other — the attendants will normally help roll your car away, if you ask. On your own drive around Croy? So the vehicle remains where it is.

Stop as soon as it is safe then switch off, if your engine has already run. On the M80, under 3 miles from Croy, that means the next junction. Tell us roughly how far it went: a run towards Glasgow, under 15 miles away, is a bigger job than a short hop across Croy.

Croy: what happens when our engineers get there

Outside the local primary school, close to Holy Cross RC Church or on your own driveway: wherever your car has stopped, our engineers come to it. Which fluid went in, the quantity, and if it ran: our technicians ask since the replies set both work and quote. You get that quote by phone, before anyone heads out.

Next: draining, then a full flush of the whole system. Not like petrol, AdBlue leaves crystals and attacks certain fuel-system metals, and neither clears out by itself. Hence it matters more. Your filter is cleaned, or replaced where it needs to be; clean diesel goes in; and your car is tested. The engine is fired up next and tested to be sure it runs properly, all before we go.

Most jobs are finished in roughly half an hour once we arrive, as long as the engine has not run — and the pumps our technicians use are fine on a busy forecourt and quiet at night outside a house. Your insurer usually wants an engineer's report and your VAT invoice, and both are yours at the end. Payment is on the day, with no deposit. While we travel, take a look at your insurance documents; plenty carry cover for misfuelling.

About Croy and where it is

Croy is a small village situated on the riverside in North Lanarkshire, with a population of around 875 people. Croy sits at an elevation of 82 metres, close to the nearby villages of Craigmarloch and Smithstone. Croy is characterized by its predominantly terraced housing and is located near Auchinstarry, within commuting distance of Glasgow. Croy is approximately 346 miles from London, but its proximity to Glasgow makes it a more locally focused community.

AdBlue drains across North Lanarkshire, Croy included

Throughout G postcodes, the teams covering Croy — a village — work the nearby places too, Auchinstarry and Smithstone included. The van reaches you fastest with a postcode starting G65 9.

Shifting the vehicle is not necessary. A driveway, a lay-by on the way to Mosswater Local Nature reserve, a side street near Croy Miners Memorial: our engineers drain the car where it sits. Ring and ask rather than assuming if you're close to a border, or somewhere hard to describe, like the back of Croy Hill Fortlet.

The short version for Croy motorists

Read the cap before you pour. Still AdBlue in your diesel tank? Petrol in Diesel can empty it wherever it stands, anywhere across North Lanarkshire: keep the vehicle off and call 0333 366 0103.

Call 0333 366 0103