Skip to content

Petrol in Diesel

0333 366 0103

Beeches Green: How Does AdBlue End Up in a Diesel Tank, and How Do You Prevent It?

AdBlue already in the diesel tank? In that case put this page aside a moment, leave the ignition and engine off, then phone 0333 366 0103. A drain and a thorough flush, carried out just where your vehicle sits around Beeches Green, is normally what it needs if caught before your engine runs. Nothing happened yet? Further down, the page explains the reasons it occurs and the ways to avoid it for good.

Call 0333 366 0103

Two fillers, two tanks: AdBlue in a diesel vehicle

No single fluid but two: that's how many modern diesels near Beeches Green and The Butts carry, with diesel feeding your engine. Kept in a tank of its own, AdBlue is fed into the exhaust stream and cleans it.

There's a filler for every tank. Under one flap, next to each other: that's the layout on many motors. On others, AdBlue's filler is under the bonnet or in the boot instead. Diesel gets filled on every filling station call-out, again and again. Rarely topped up, AdBlue normally goes in from a bottle, poured by a driver who has to stop and think what filler to use. The mistake grows in the gap between the two.

Beeches Green: how AdBlue in the diesel tank takes place

Three things tend to line up, and carelessness is rarely one of them.

To start with, the warning. Low AdBlue triggers a message from the car, and running out means limp mode — so a hurried top-up, maybe before work off Beeches Green, perhaps at Old Nelson on the way home that evening.

Unfamiliar cars are second, too. Hire cars, new motors and company vehicles place their fillers differently, and the hand reaches for the cap used on the old one.

Nothing halts the tip once it has started, because a bottle with a spout goes into a diesel filler as easily as an AdBlue one. The bottle fits. The same few seconds decide it, in the middle of Beeches Green or out in Stroud.

Flushing a diesel fuel system after AdBlue, Beeches Green

The AdBlue filler and your diesel filler: telling them apart

A few seconds is all the checks take — so check them before you pour anything, on a driveway in Paganhill or a forecourt around Beeches Green.

  • Where it sits misleads; the cap does not. AdBlue ones tend to be blue or carry the word "AdBlue" — diesel caps usually do not.
  • The size. On plenty of motors the AdBlue filler neck is the smaller of the two.
  • The flap. Look inside your fuel flap for a label. Plenty of motors say there which fuel goes where.
  • In the boot or under the bonnet: that's where the filler is if it is not by your diesel cap, and the handbook says which.
  • Collecting a hire or company car, perhaps at the car park outside Stroud? Check with whoever drove the car last before you set off, not once the light goes on.

Topping up AdBlue without it reaching the diesel tank

A routine for the day the light comes on, wherever around Gloucestershire that is.

  • Turn off after you park — flat ground, engine off, and not in a rush beside Rowcroft Retreat on the verge.
  • Find the AdBlue filler, read the cap, and say the word "AdBlue" out loud as unscrewing it. It sounds silly. It does the trick.
  • The diesel cap stays on. Where both sit under a flap, confirm it's closed before the bottle comes up.
  • Stop once the tank is topped up or the bottle runs dry; before that, tip slowly through its own spout.
  • 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 just there. Leave out step five altogether.

Already put AdBlue in your diesel tank around Beeches Green?

Don't start the engine: that's how the short order of things begins. Don't switch your ignition on; on plenty of diesels that alone runs the fuel pump. AdBlue doesn't mix with diesel — it sinks to the bottom of the tank, where the fuel is pulled from — so don't top up with diesel to thin it.

If you're at a forecourt, whether it's the Tesco or the BP, ask the staff to help push the vehicle clear of the pump. If you are on your own drive around Beeches Green, leave it where it stands.

Stop as soon as it is safe and switch off, if the motor has already run. On the M5, under 5 miles from Beeches Green, that means the next junction. Roughly how far did it go? Crossing Beeches Green is smaller work than a trip of under 10 miles towards Gloucester, so say.

What happens when we arrive around Beeches Green

Our engineers come to the vehicle wherever it has stopped, whether that is outside The Rosary Catholic Primary School, near Church of the Immaculate Conception or on your own driveway. We ask what was put in, about how much, and whether it's run, since those replies determine the work and the price. You get that quote on the phone, before anybody heads out.

Next: draining, then a full flush of the entire system. Unlike petrol, AdBlue forms crystals and attacks certain fuel-system metals, and none of it clears away unaided. Hence it matters more. The filter is flushed, or replaced where it needs to be; fresh diesel goes in; and the car is tested. After that our technicians fire it up and confirm it runs smoothly before we leave.

Using pumps safe on a working forecourt and quiet enough for use outside a house at night, most jobs in which the engine hasn't run take about half an hour after we are there. You pay on the day, with nothing upfront, and get a VAT invoice and an engineer report for your insurer. Many insurance policies include misfuelling cover, and so it is worth checking yours while we're on the way.

About Beeches Green and where it is

Beeches Green is a suburban area situated on the riverside in Gloucestershire, with a mix of semi-detached housing and other residential properties. Beeches Green lies close to the city of Gloucester, approximately 8 miles away, and is also near to other local places such as Stroud and Badbrook. Beeches Green has a population of around 3613 people and is located at an elevation of 61 metres. Beeches Green is part of the wider South West region, about 91 miles from London.

Beeches Green and Gloucestershire: AdBlue drains across the area

Beeches Green is a residential suburb, and the vans that cover it also work the places near it, Badbrook and Stroud Hill among them, across the GL postcode area. Quote a postcode beginning GL5 4, and our van gets there fastest.

Moving your car isn't necessary. Wherever it stands — beside Vue, on a lay-by heading to Bank Gardens, at home — that's where it gets drained. If you are near a border, or somewhere hard to describe like the back of Stroud Library, ring and ask rather than guessing.

In short, for Beeches Green people

Before you tip, read the cap. If AdBlue has gone in the diesel tank anyway, leave the car off and call 0333 366 0103. Petrol in Diesel clears it where it waits, anywhere across Gloucestershire.

Call 0333 366 0103