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Petrol in Diesel

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Why It Occurs and How to Prevent It: AdBlue in a Diesel Tank in Georgetown

Keep the motor and ignition off then call 0333 366 0103 now — reading can wait if AdBlue is already in your diesel tank. Usually, if your motor hasn't turned, it's drained and thoroughly purged where your car sits around Georgetown. Reading before the event? Then what follows covers how it happens and what to prevent it ever happening.

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

Diesel feeds the engine — but plenty of current diesels seen around Georgetown and Milldamhead carry another fluid as well. AdBlue goes to your exhaust, where it is sprayed into the gas to clean it, and it lives in a tank of its own.

Every tank comes with a filler of its own. On a lot of cars the two sit side by side under the same flap; on others the AdBlue filler is in the boot or under the bonnet. Diesel gets filled on each filling station visit, again and again. Someone who has to stop and work out where it goes normally fills the AdBlue side, from a bottle, and much less regularly. It's in the gap that the mistake happens.

How does AdBlue in your diesel tank take place around Georgetown?

Seldom is it carelessness: usually three things line up.

The warning comes first. As AdBlue runs low the vehicle tells you, and if it runs out altogether, your vehicle drops into limp mode. So the top-up is done in a hurry: on a drive off Gilloch Avenue before work, or in the car park outside the pub in the village on the way home.

Next, your hand goes for the cap it would have used on the old motor — because a rental car, a new car or a company car places the fillers somewhere your last one didn't.

A spout-topped bottle meets no resistance at a diesel filler any more than at an AdBlue one. And so the pour, once begun, carries on. The same few seconds decide it, in the middle of Georgetown or out in Gasstown.

Flushing a diesel fuel system after AdBlue, Georgetown

The AdBlue filler and your diesel filler: telling them apart

Look at these before pouring, at a forecourt in Georgetown or a driveway over in Larchfield. Seconds, that's all.

  • Where it sits can mislead; the cap doesn't. AdBlue caps are often blue or carry the word "AdBlue" — diesel caps usually don't.
  • 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. Plenty of motors say there which fuel goes where.
  • The handbook shows which it lives if the filler isn't next to the diesel cap: your boot, or under the bonnet.
  • The person who drove the vehicle last. On a hire or company car collected from somewhere like the car park at Dumfries, ask before you leave, not when the light comes on.

AdBlue top-ups that never reach your diesel tank

A routine for the day the light comes on, wherever around Dumfries and Galloway that is.

  • Turn off after you park — flat ground, motor off, and not rushed beside Gilloch Drive at the roadside.
  • Daft as it sounds, speaking "AdBlue" out loud while you unscrew the cap does the trick — after you have found the filler and read it.
  • Leave the diesel cap on. If both sit under one flap, check your diesel cap is still closed before you lift the bottle.
  • Stop once the tank is topped up or the bottle runs dry; until then, tip gently through its own spout.
  • Close the cap and check again. Make sure the diesel cap was never opened. Only then start the vehicle.

Find at step two or three that it's already gone into your diesel side? So stop just there. Do not go on to stage five.

Georgetown: already put AdBlue in your diesel tank?

Do not start your engine: that's where the short order of things begins. The fuel pump runs on plenty of diesels the moment the ignition goes on — so leave it off. Topping up with diesel will not weaken it: instead, AdBlue sinks to the bottom of that tank, just where fuel is drawn from.

On a forecourt — the nearest petrol station, Morrisons or another — the staff will normally help push the vehicle clear, when you ask. If you're on your own driveway in Georgetown, leave the vehicle where it sits.

Where your engine has run by now, pull over safely then switch the vehicle off. Leave the A74(M) — under 10 miles out of Georgetown — at the next exit. A short hop across Georgetown is a smaller job than a run towards Carlisle, under 50 miles away, so tell us roughly how far it went.

What happens when our engineers turn up around Georgetown

Our engineers come to the vehicle wherever it has stopped, whether that is outside the local primary school, close to Georgetown Library or on your own drive. Our technicians ask what went in, roughly how much, and whether it's run, because the answers determine this work and the quote. You get that quote by phone, before anyone sets off.

Your system is then rinsed thoroughly, once that tank is emptied. AdBlue crystallises and is corrosive to some of the metals in a fuel system, so it doesn't wash out on its own — which is why the flush matters more with AdBlue than with petrol. Filter cleaned or, where it must be, swapped; fresh diesel in; then a check of your car. We don't leave until it has been started and is running smoothly.

With pumps fine on a working forecourt and quiet enough to use outside a house at night, most jobs where your motor hasn't run take about half an hour after our technicians arrive. You pay on the day, with nothing upfront, and get a VAT invoice and an engineer report for your insurer. Misfuelling cover is included in plenty of insurance policies — and so use the wait to check yours.

About Georgetown

Georgetown is a suburban area situated on the riverside in Dumfries and Galloway, with a relatively low elevation of 22 metres. Georgetown lies near several smaller communities, including Gasstown, Noblehill, and Gateside of Trench, and is located approximately 28 miles from Carlisle. Georgetown has a population of around 5353 people and predominantly features semi-detached housing. Georgetown is also relatively distant from major cities like London, being around 284 miles away.

AdBlue drains about Georgetown, and Dumfries and Galloway beyond

Georgetown is a residential suburb, and the teams that cover it also work the towns around it, Noblehill and Gateside of Trench among them, across the DG postcode area. Fastest of all: quote a DG1 4 postcode for our van.

The vehicle does not need to move. The drain happens on the spot, whether a driveway, a road by Dumfries Baptist Church, or a layby towards Crichton Golf Club. Guessing doesn't help at the back of Cresswell Community Centre, on a border, or anywhere awkward to describe; ring and ask.

In short, for Georgetown people

First, the cap; then, the pour. If AdBlue has gone in the diesel tank all the same, leave the vehicle off and call 0333 366 0103. Petrol in Diesel empties it where it waits, anywhere across Dumfries and Galloway.

Call 0333 366 0103