Skip to content

Petrol in Diesel

0333 366 0103

Newcastle: Petrol in a Diesel Car? Here Is What Happens

Whatever you do, don't switch the motor on, even briefly, to shift the vehicle. Pause; leave the vehicle off. Petrol in a diesel that has not been run is typically a simple drain and a flush, done where the vehicle stands, and what you do in the coming few minutes decides that far more than anything else. Below is the sequence from here, anywhere around Newcastle you happen to be.

Call 0333 366 0103

Petrol in a diesel, engine off — the first minute

Before anything else, the following — in this sequence.

  • The ignition off, keys out. Switched on, your ignition can prime your system — and priming is what draws petrol out of your tank towards the components it damages.
  • No diesel on top. More fuel in removes none of that petrol — it just leaves you with more of the same blend.
  • Hazard lights on. If you are at all near moving traffic, make the car easy to see before you do anything else.
  • By hand, never on the engine: that is how it leaves the petrol pump. Ask the forecourt attendants to help you push, however short the miles.
  • Keep the till receipt: the grade and roughly how much are printed on it, and they're what we ask for first.

If you were still on the move when you noticed, stop somewhere sensible instead of pushing on for the services — on the M77, over 50 miles from Newcastle, that means the next exit. Step one comes next.

Has it run yet? The fork in every Newcastle fuel drain

Everything after this stage rests on one answer.

If it has not once been started:

  • Only the tank has petrol in it so far.
  • The job is a simple drain and a flush, normally done where the vehicle is.
  • This is the best place to be in, and the whole reason step one matters.

If it has been started, even for a moment:

  • Some petrol has left the tank already, passed through your filter, and got into the lines.
  • A longer run carries it all the way to the high-pressure fuel pump and the fuel injectors.
  • Distance is what turns it into a bigger job: the lines flushed, a filter seen to, and at times further work.

Why the line falls there: diesel lubricates your high-pressure pump and the fuel injectors as it passes through them, and petrol does not. Nothing is harmed by petrol that is only waiting in a tank. The parts that shift it are wearing the moment petrol is being pumped.

Fuel drain of a diesel car in Newcastle, step by step

Before you call about petrol in a diesel around Newcastle: what we need

Whether the van circles or finds you comes down to a little preparation.

  • Where you are. A postcode beginning BT33 0 is the ideal start.
  • A road name is a help: B7041, say, or whichever street you've stopped in. A car park does the trick too.
  • What a car park serves is the easiest way to find it, and so say the landmark — such as the one at the local shops.
  • The vehicle. Make, model, plus that it's a diesel.
  • What was put in. Petrol, or AdBlue. AdBlue is a separate job with its own page for Newcastle, and so say which.
  • How long the nozzle was in, or the litres on your receipt — whichever tells us how much.
  • Whether it's run. Then if it has, how far plus how hard.
  • Whose vehicle it is. Some hire or company agreements want the owner to authorise the work, and that is quicker settled before we turn up than after.

Call 0333 366 0103 next. Email is fine as well if it can wait, with your car left at home, going nowhere.

Newcastle fuel drain on its way? Whilst you wait

The wait is where well-intended help does the damage. Stick to these.

  • Where the vehicle has stopped settles where you wait. Somewhere exposed: away from it, away from the traffic. Sensible: with it. Either way, safety ahead of the vehicle.
  • No one — however helpful — starts it, whether to see if it runs or to move your car a short way.
  • Additives remain in your boot. Injector cleaner and two-stroke oil take none of the petrol out again.
  • Emptying it yourself is out: a can of siphoned petrol on a verge is a danger, and the fuel beyond the tank remains put regardless.
  • Even the radio or the windows are not worth turning your ignition on for.

Van arrived? Your fuel drain, one step at a time

  • Three queries. What was put in, how much, and whether it has run. Those replies set the job, which is why our quote comes after them but not before.
  • Next the tank is cleared, and the contaminated fuel comes out.
  • Cleaning the lines comes next, since a motor that ran has petrol past the tank, inside the fuel lines themselves.
  • Then the fuel filter: replaced where there's a usable one, cleared where there's not.
  • Priming follows once clean diesel is in.
  • Starting it. After the fuel system is bled with fresh diesel, we start the car and check it runs properly.

Only once it is running on new diesel do our technicians head off. It's very unusual for a vehicle spotted soon to be left with long-term damage, and normal use starts again at once.

Newcastle, after the fuel drain: back on the road

  • Drive normally. There's nothing unusual to do once it's been started on fresh fuel.
  • Give the first miles your attention. Smoke appearing, a warning light coming on, your idle going lumpy or the throttle hesitating: pull over and call us back.
  • Hold on to your paperwork. A hire firm, a fleet manager or an insurer may ask what was carried out.
  • The handle's colour is not the thing to go by next time — the label on the petrol pump is.

About Newcastle

Newcastle is a small coastal town in County Down, Northern Ireland, situated at the foot of the Mourne Mountains. Newcastle sits at a low elevation of around 8 metres, looking out over the Irish Sea. Newcastle is close to nearby villages such as Bryansford and Dundrum, and is a short distance from the city of Newry. Newcastle has a population of approximately 7943 people, predominantly living in detached housing.

Fuel drains across Newcastle and nearby

Petrol in diesel call-outs around Newcastle and in Bryansford, Dundrum or Annsborough all reach the same teams, which reach most of County Down too. Somewhere tricky to describe, or close to a boundary? Asking beats assuming — ring.

Petrol in a diesel anywhere around County Down? Off, then ring

Stage one is all of that: motor off, keys out, receipt in your pocket. From there Petrol in Diesel carries on, on the forecourt, at the roadside or on your drive.

Call 0333 366 0103