Skip to content

Petrol in Diesel

0333 366 0103

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

If AdBlue is already in your diesel tank, stop reading for a moment: leave the engine and your ignition off and call 0333 366 0103. A drain plus a full flush, carried out right where the car sits around Port Dundas, is normally all it takes when found before the motor runs. The rest of this page covers why it takes place and how to ensure it does not — useful if you're reading before it has happened.

Call 0333 366 0103

AdBlue in a diesel vehicle: two tanks, two fillers

Many current diesels on the roads around Port Dundas and Woodside carry two liquids, not one. Diesel goes to your motor. AdBlue goes to the exhaust, where it is sprayed into the gas to fresh it, and it lives in a tank of its own.

Each tank has a filler of its own. Many of cars share a single flap for the two, while some put the AdBlue filler to your boot or under the bonnet. At the pump, your diesel side is topped up constantly. Far less frequently, the AdBlue side is filled — normally from a bottle, by a person thinking about where it goes. That gap is where the slip lives.

How AdBlue in the diesel tank occurs in Port Dundas

Carelessness rarely explains it. Instead is three things coming up at once.

Haste follows from the warning. The vehicle tells you as AdBlue runs low, and an empty tank sends it into limp mode — so the top-up happens quickly, before work on a drive off Vintner Street, or on the way home in the car park at Springpark Bar.

Then your car is new. A hire car, a new car or a company car puts the fillers where your last one didn't, and the hand reaches for the cap it would have used on the old one.

Lastly, the bottle fits: diesel filler or AdBlue one, it slides in as easily, and once the pour starts, no part stops it. Cowcaddens or the heart of Port Dundas: it is the same few seconds in both.

Flushing a diesel fuel system after AdBlue, Port Dundas

Which filler is for AdBlue, and which for diesel?

Look at these before pouring, at a forecourt around Port Dundas or a driveway over in Garnethill. Seconds, that's all.

  • Colour and marking: an AdBlue cap is frequently blue, or says "AdBlue", where a diesel cap usually does not. Go by the cap, not its position.
  • The size. On many vehicles 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.
  • In your boot or under the bonnet: that is where your filler sits if it is not by your diesel cap, and the handbook says which.
  • Check with the person who drove it last — before you leave, not when the light comes on — when you pick up a hire or company car from somewhere like the car park at Glasgow Queen Street.

Topping up AdBlue without it reaching your diesel tank

When the light goes on, anywhere in Glasgow City, use this routine.

  • Park then switch off. Not on a slope, not with your motor running, and not in a rush on the side of Mid-Wharf Street.
  • Daft as it sounds, saying "AdBlue" out loud while you unscrew the cap does the trick — after you have located your filler and read the cap.
  • Both behind one flap? So confirm the cap on the diesel filler is still shut ahead of lifting the bottle.
  • Using the bottle's own spout, pour slowly — and stop when it is full or the bottle is empty.
  • Before you start the vehicle, shut the cap and look again that your diesel cap was never came off.

Discover at the second or third step that AdBlue went into the wrong filler? That is where you stop. Step five stays off limits.

Put AdBlue in the diesel tank in Port Dundas already?

Then the order of things is short. Do not start your motor. On plenty of diesels the ignition alone runs the fuel pump, so do not switch the vehicle on. Filling up with diesel will not dilute it: rather than mixing, AdBlue sinks to the bottom of your tank, right where fuel is taken from.

If you're at a forecourt, whether it is the Esso or the Costco, ask the attendants to help roll the car away from the petrol pump. On your own drive in Port Dundas? Then the vehicle remains where it is.

Stop as soon as it is safe then switch off, if your engine has already run. Come off the M8 — under a mile out of Port Dundas — at the first exit. Mileage counts — a quick hop across Port Dundas is a smaller job than heading under a mile to Glasgow — so tell us roughly how far it went.

When our technicians get there in Port Dundas, what occurs?

Our technicians come to your car wherever it has stopped, whether that is outside the local primary school, near Boat or on your own driveway. Both the work and the price depend on three replies — which liquid, which amount, and whether it's run — so our technicians ask. During the call itself, you are told the quote — before anything else.

The fuel system is then rinsed thoroughly, after your tank is emptied. More than with petrol, it counts here: the crystals form, certain metals are attacked, and none of that washes out unaided, no matter how long it sits. Filter cleaned or, if needed, replaced; clean diesel in; and then a check of your vehicle. We don't go until it has been fired up and is running correctly.

With pumps safe on a busy forecourt and quiet enough for use outside a house at night, most jobs where the engine has not run take roughly half an hour once our technicians arrive. Your insurer usually wants the engineer's report and your VAT invoice, and you get both once the job is done. Payment is on the day, with no money upfront. While we travel, take a look at your policy; plenty carry cover for misfuelling.

About Port Dundas

Port Dundas is a suburban area in Glasgow City, situated on the north bank of the River Clyde at an elevation of 51 metres. Port Dundas is close to the city centre, being only 0.8 miles from Glasgow, and is surrounded by other neighbourhoods such as Cowcaddens, Hamiltonhill, and Sighthill. Port Dundas is characterised by its predominantly flat-type housing and its riverside setting, which offers views of the city and the river. Port Dundas has a population of approximately 4915 residents.

Port Dundas and Glasgow City: AdBlue drains across the area

Port Dundas is a residential suburb, and our vans that cover it also work the places around it, Hamiltonhill and Sighthill among them, across the G postcode area. Fastest of all: quote a G4 0 postcode to our van.

Your car stays where it is. Draining happens right there, whether a driveway, a road near Pinkston Watersports Centre, or a lay-by on the way to Sighthill Park. Tricky to explain, like the back of The Loading Bay? By a border? Checking is better than assuming, and so ring.

In short, for Port Dundas motorists

Tip no AdBlue till you have read the cap. Petrol in Diesel drains it on the spot, anywhere across Glasgow City, if AdBlue has gone in the diesel tank all the same — and so leave the vehicle off then ring 0333 366 0103.

Call 0333 366 0103