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Petrol in Diesel

0333 366 0103

The Holmes: AdBlue in the Diesel Tank? Leave It Off

If AdBlue has got into your diesel tank, keep the motor off and leave your ignition off. AdBlue is urea mixed in water. It doesn't burn, it doesn't mix with diesel, and the damage it does begins when the system pulls it in. In The Holmes, AdBlue in a diesel tank caught before the engine runs usually means a drain and a thorough flush, just where the vehicle is. Before anything, call us on 0333 366 0103.

Call 0333 366 0103

Those opening minutes: AdBlue in the diesel tank in The Holmes

Do these:

  • Pocket your keys, which stops anyone switching the power on.
  • If you're at all near moving traffic, put the hazard lights on.
  • So you can tell us which liquid it was and roughly how much, save the receipt or the empty bottle.
  • Call right where you are. Say a DE1 2 postcode or the nearest street name, and no one has to hunt for you.

Never do these:

  • Moving the vehicle just a short way is no reason to fire up your motor.
  • Do not switch the ignition on. On many diesels that alone runs the fuel pump.
  • No extra fuel on top. The AdBlue won't mix, so it is pointless.
  • Any driving at all is best avoided, including a short way up Morledge.
  • Do not try to drain the vehicle yourself at the roadside.

The staff on duty at any The Holmes filling station — the Texaco included — will normally help rolling it aside if you ask. If you are on your own drive, leave the vehicle just where it sits.

AdBlue in a diesel tank: what it does

Not the motor but the exhaust is where AdBlue belongs. Its own reservoir keeps it, and from there it is fed into the exhaust, where it cleans the fumes. No part inside an injection pump is designed for this fluid — and no part of that was meant to travel through one.

Inside a diesel tank it behaves really differently from fuel. It doesn't mix in. The intake sucks fuel from the deepest part of that tank, and that's exactly where AdBlue ends up: as it is heavier than diesel, it sinks. Easiest of all: one that got AdBlue in Rose Hill overnight and hasn't turned since. The AdBlue waits at the foot of the tank, untouched — but it would be first through once your engine starts, before any diesel at all.

Two kinds of harm follow from there. Crystals and corrosion. As the water dries, it leaves urea that crystallises in filter elements and tiny passages; and, because it eats at some metals, every part it touches suffers for as long as it stays in there. A car left sitting around The Holmes with AdBlue already in its lines is worse by the morning; one with AdBlue only in its tank isn't. And there is the water: it offers no protection to the parts that rely on it most — the high-pressure pump and each injector.

Draining AdBlue from a diesel tank in The Holmes

Why AdBlue in a diesel is regularly more serious than petrol

Put petrol in a diesel at the JET and you have an issue of thin fuel. Harm just comes from driving on it. Mixed into the diesel and left in the tank, it does nothing.

AdBlue in a diesel is a problem of the wrong substance altogether. Not burning, it cannot simply be run through. Nor can it be thinned, because it splits back out — and the following fill won't clear away crystals or corrosion. So the flush counts more with AdBlue, and turning the key "to see", in the heart of The Holmes or out in Pear Tree, does more harm than nearly any other error.

The good news is the same as with petrol. If your engine has not run, the AdBlue is still inside your tank, and that tank is the simplest part of a fuel system to clear, wherever in Derbyshire your car is sitting.

AdBlue in a diesel tank around The Holmes: how it ends up there

Many motors place the AdBlue cap beside the diesel one, now and then under one flap, and after dark the two may appear the same. No one means it. Usually it's never the forecourt: a driver picks up a container heading home and pours it in outside the house.

The ways it occurs are few and familiar. The refill is rushed outside Castleward Spencer Academy, because your dash flashed with a warning while the kids were taken off. After work, a bottle goes in on a drive near Traffic Street. Or the vehicle is topped up in the car park outside The White Horse, in poor light, by somebody who has never opened that flap before.

The least known cars see it most — rentals, brand-new ones, company ones, and the spare vehicle in a home with one of each fuels. Leave it switched off: that is the first response to the same mistake, anywhere in The Holmes or the remainder of Derbyshire you are.

The Holmes: started your engine with AdBlue in the diesel tank?

The AdBlue has left your tank, then. The filter and pipework have had it sucked through, and some running takes it on to the injection pump and every injector.

Rough running, smoke, lost power, dashboard lights or cutting out: each might show up, maybe midway across The Holmes or returning from Bass Recreation Ground. When you safely can, stop and turn it off — without turning it on again to test. More of that is pulled through with each start.

If you were on the M1, under 10 miles from The Holmes, come off at the next junction and stop somewhere sensible rather than pressing on.

A quick hop across The Holmes to the car park by Derby Theatre is one thing; driving towards Derby, under a mile away, is something else, because each mile pushes the AdBlue further in. So distance matters. Let us know roughly how far it had come.

Our technicians do all of the flushing where your car has come to a stop, and once the motor has been started there is more of it. Permanent damage is very unusual when it is caught soon.

The Holmes: how AdBlue is cleared from a diesel

Anywhere it has stopped around The Holmes — a filling station, a layby, a drive, a street beside Theatre Walk — the van comes to the car. What went in, roughly the quantity, plus if your engine has been run: our engineers check before all else, since those shape the work.

The contaminated diesel and the urea come out as one after that tank is drained, right there. What remains from AdBlue will not flush out unaided, and so the whole system gets a full flush, which matters far more here than for petrol. A test of the car follows at the end, once fresh diesel goes in and the filter is cleaned or, if necessary, replaced. Not run? Then count on about half an hour once we are there for most jobs. Low-noise enough for use outside a house at night, and safe on a working forecourt, our pumps are explosion-proof.

Fresh diesel goes in to bleed the system, and that is the final step. You drive off as soon as our engineers have started the engine, and it makes no difference whether your car is on a drive around The Holmes or in a space at Derby. It's checked on fresh diesel to be sure it runs correctly before we head off. Because the job is done in its entirety where your car is, a garage never comes into it. Your insurer is likely to want an engineer's report and your VAT invoice — both yours afterwards.

About The Holmes and where it is

The Holmes is a suburban area located on the riverside in Derbyshire, with a mix of flat dwellings and other residential properties. The Holmes sits near the city of Derby, at an elevation of around 52 metres, and is close to nearby places such as Litchurch and Little Chester. The Holmes is part of the larger Derby urban area, with the city centre just 0.4 miles away. The Holmes has a population of approximately 3484 residents.

AdBlue drains around The Holmes and across Derbyshire

The teams that answer AdBlue jobs around The Holmes also cover the spots around it, Derby, Litchurch and Little Chester among them, and most of Derbyshire beyond, across the DE postcode area. Assuming won't help by a border or somewhere hard to pin down; ring and ask.

A mobile service fits The Holmes, a residential suburb: you have no need to bring your car to us, since we drain it there, in a driveway, a side street, a car park or a filling station.

What AdBlue in a diesel tank costs to put right around The Holmes

Every job is different, so no single quote would be fair. The price changes first with how long, if at all, the engine has been running, and next with the quantity of AdBlue that went in. After that it rests on where the vehicle is and whether our van can reach it safely, which is simpler on an open drive than in a tight gap behind S3 Padel.

For that in mind, each enquiry from The Holmes begins with the identical trio — what went in, what quantity, whether it ran — before any figure. Those replies narrow the range right down to one number.

Before a van sets off, you hear our price by phone. And you pay on the day, by card or over the phone, with nothing upfront. While our engineer is on the way, check your policy: plenty cover misfuelling.

In The Holmes and still next to the car?

Right now, the most helpful thing to do with the vehicle is to not touch it. Engine off, keys out, ignition off. Ring 0333 366 0103 and tell us it is AdBlue, roughly how much, and whether it's run. Petrol in Diesel takes it from there, in The Holmes or anywhere across Derbyshire.

Call 0333 366 0103