Skip to content

Petrol in Diesel

0333 366 0103

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

AdBlue already in the diesel tank? Then put this page aside a moment, leave your ignition and engine off, and phone 0333 366 0103. Normally, when your motor has not turned, it's emptied and fully cleaned where the vehicle sits around Summerwood Top. The rest of this page explains why it happens and how to ensure it does not — useful if you're reading before it has happened.

Call 0333 366 0103

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

Diesel feeds the motor — but many current diesels driven round Summerwood Top and Dronfield Woodhouse carry another liquid as well. AdBlue's own tank holds it, and from there it is sent to your exhaust, where a spray cleans the fumes.

Each tank has its own filler. Some cars keep the AdBlue filler in the boot or under the bonnet; a lot of others have both together behind one flap. Topping up the diesel side at the petrol pump goes on all the time. The AdBlue side is fuelled far less often, usually from a bottle, and usually by somebody who has to stop and think where it goes. It's in the gap that the error happens.

How AdBlue in the diesel tank takes place in Summerwood Top

It's hardly ever carelessness. Three things tend to line up.

On a driveway off Stubley Place before work, or in the car park outside The Victoria on the way home: that's where the hurried top-up happens. What is the reason for the rush? As AdBlue gets low your car tells you, and once it's empty, limp mode kicks in.

Unfamiliar vehicles come second, too. Hire cars, new cars and company motors put their fillers differently, and the hand goes for the cap used on the old one.

A spout-topped bottle finds no resistance at a diesel filler any more than at an AdBlue one. And so the tip, after started, keeps on. It's a few seconds, whether out in Dronfield or bang in the centre of Summerwood Top.

Flushing a diesel fuel system after AdBlue, Summerwood Top

The AdBlue filler and the diesel filler: telling them apart

Before you tip anything, whether on a driveway in Bowshaw or a forecourt in Summerwood Top, check these. They take a couple of seconds.

  • Check the cap instead of going by where it sits: AdBlue caps are commonly blue or marked "AdBlue", and diesel ones normally are not.
  • Check the size: the smaller filler neck is, on many vehicles, the AdBlue one.
  • Check inside your fuel flap: many vehicles have a label there saying which fuel goes where.
  • The handbook shows where it is when the filler is not next to the diesel cap: your boot, or under the bonnet.
  • The person who drove it last. On a hire or company car collected from somewhere like the car park at Dronfield, ask before you leave, not when the light comes on.

How to top up without AdBlue in your diesel tank

Anywhere in Derbyshire the light comes on, here is a routine for the day.

  • Park then switch off. Not on a slope, not with your engine running, and not in a rush on the side of Stubley Lane.
  • Say "AdBlue" out loud as you unscrew the cap, after you find the AdBlue filler and read it. Silly, yes, but it works.
  • If both sit under one flap, check the diesel cap is still closed before you lift the bottle — then leave the vehicle on.
  • Gently does it, through the bottle's own spout, until it's full or the bottle runs out.
  • Close the cap, and check again — making sure the diesel filler stayed shut throughout. Only then, start your car.

Find at stage two or three that it has already gone into the diesel side? So stop right there. Stage five is out.

Put AdBlue in your diesel tank in Summerwood Top already?

The short order of things, starting with not starting the engine. Do not switch the ignition on; on many diesels that alone runs the fuel pump. Filling up with diesel will not thin it: rather than mixing, AdBlue drops to the bottom of your tank, just where fuel is drawn from.

Ask the staff to help push the vehicle clear of the petrol pump if you're on a forecourt — the JET, the Sainsbury's or anywhere else. Leave it where it is if you are on your own driveway around Summerwood Top.

When your engine has been run by now, pull over safely then switch it off. On the M1, under 10 miles from Summerwood Top, that means the next exit. A short hop across Summerwood Top is a smaller job than a run towards Sheffield, under 10 miles away, so tell us about how far it went.

When we get there around Summerwood Top, what occurs?

By Gorseybrigg Primary School and Nursery, close to Dronfield Baptist Church or on your own drive: wherever your car has stopped, our engineers come to it. We ask what was put in, roughly how much, and if it has run, since those replies determine this work and our price. No one sets off before you've heard our price by phone.

Emptying your tank comes next, followed by a thorough flush of the system. Unlike petrol, AdBlue leaves crystals and eats at some fuel-system metals, and none of that clears away by itself. That is why it matters more. Once the fuel filter has been cleaned — or renewed, where required — fresh diesel goes in, and then your car is tested. Before we leave, our technicians start the car and check that it is running smoothly.

Unstarted vehicles mostly mean a half-hour job from arrival. The kit is fine on a busy filling station, and quiet enough for a residential street after dark. The insurer will ask for the engineer's report and the VAT invoice, and you get both once the job is done. Payment is on the day, with no deposit. While we travel, have a look at your insurance documents; many carry cover for misfuelling.

About Summerwood Top and where it is

Summerwood Top is a suburban area situated on the riverside in Derbyshire, with an elevation of 183 metres and a population of around 2841 residents. Summerwood Top lies approximately 5.4 miles from Sheffield and is near other local places such as Dronfield, Gosforth Valley, and Holmley Common. Summerwood Top is characterised by its semi-detached housing stock, typical of many suburban areas in the East Midlands. Summerwood Top is also relatively close to major cities, being around 136.8 miles from London.

AdBlue drains in Summerwood Top and across Derbyshire

Gosforth Valley and Holmley Common are among the towns near Summerwood Top, a residential suburb, that the same teams cover, over S postcodes. Give a postcode that starts S18 1, and our van arrives fastest.

Your car remains where it is. Anywhere it sits — near Dronfield Library, on a lay-by en route to Dronfield Scout Activity Centre, on a drive — that is where it is emptied. If you are close to a border, or somewhere hard to describe like the back of Dronfield War Memorial, ring and ask rather than assuming.

For Summerwood Top people, the short version

Tip no AdBlue till you have read the cap. Petrol in Diesel empties it on the spot, anywhere around Derbyshire, if AdBlue has gone in the diesel tank all the same — and so leave it off and ring 0333 366 0103.

Call 0333 366 0103