Newton: Petrol in a Diesel Car? Here Is What Happens
Not for a moment, and not to move it: your engine remains off. Stop there. The coming few minutes determine it far more than anything else: petrol in a diesel still unrun usually comes down to draining then purging, right there. Here is the sequence of things from now, anywhere you're around Newton.
Minute one: petrol in a diesel, engine off
Do these before anything else, in this sequence.
- Ignition off, keys out. Switched on, the ignition can prime your system — and priming is what moves petrol out of your tank towards the parts it harms.
- No diesel on top. More fuel in takes away none of that petrol — it only makes you with more of the same blend.
- Hazard lights on. If you are at all close to moving traffic, make the vehicle easy to see before you do anything else.
- The attendants will generally help you push it clear of the petrol pump. Ask, and roll it by hand — not under your engine, even for a couple of yards.
- The first thing you will be asked is which fuel you put in and roughly how much — and the till receipt shows both. Hold on to it.
On the M4, under 10 miles from Newton, the next junction is the location to come off; elsewhere, the first safe place to stop. Don't push on to the services. Then go back to step one.
Has it run yet? The fork in each Newton fuel drain
One answer is what everything after this point rests on.
Engine never run at all?
- Only your tank has petrol in it so far.
- Draining and flushing, on the spot, is normally all of that.
- This is the best position to be in, and the whole reason stage one counts.
Motor run, however briefly?
- Petrol has been drawn from that tank, through the filter and into the fuel lines.
- A longer run carries it all the way to the high-pressure fuel pump and your injectors.
- The job expands with the miles — lines purged, filter seen to, sometimes more.
The reason the line falls there: diesel protects the high-pressure fuel pump and the fuel injectors as it passes through them, and petrol does not. A tank of petrol, left still, hurts nothing. Move the petrol, though, and it grinds down the very parts doing the moving.
Calling about petrol in a diesel from Newton: what to have ready
A little planning is the difference between a van that finds you and a van that goes round.
- The best place to start is a postcode — one starting SA3 4 — for where you are.
- Wherever you have parked, the road's name is useful — whether that's Murton Lane or somewhere else — and so does the name of a car park.
- What a car park serves is the quickest way to find it, so mention the landmark — such as the one at M&S Food.
- The make and model of the vehicle, and the fact it is a diesel.
- Tell us which went in — petrol or AdBlue — since AdBlue is a different job, with a page of its own for Newton.
- How long the nozzle was in, or the litres from the receipt — whichever tells us how much.
- Whether it has run. And if it has, how far plus how hard.
- Sort who owns the vehicle ahead of when we turn up: some hire or company agreements want the owner to authorise the work, and doing it faster beforehand.
Ring 0333 366 0103 then. Email is fine as well if it can wait, with the car left at home, going nowhere.
The wait for a Newton fuel drain, and what to do in it
In the wait, the harm comes from kindly meant help — which is why these count.
- Where the vehicle has stopped settles where you wait. Somewhere exposed: away from it, clear of the traffic. Sensible: with it. Either way, safety ahead of the vehicle.
- Nobody — however helpful — starts it, whether to see if it runs or to move the vehicle a short way.
- Anything from the boot, oil meant for two-strokes or injector cleaner: no additive lifts that petrol.
- No home-made emptying. Siphoning petrol into a can by the kerbside is risky, and it leaves your fuel that has by now gone beyond the tank.
- The ignition remains off. Even for your radio or your windows.
Van arrived? The fuel drain, one step at a time
- Fuel, volume, whether it's run: those replies set this job, and that's why you get a quote after them rather than before.
- Out of your tank comes the contaminated mixture: your tank is drained.
- If it ran, the fuel lines are holding petrol that has moved beyond the tank — so they're cleaned.
- Your filter is dealt with. Cleared, or replaced where the vehicle has a serviceable one.
- Clean diesel goes in, then your system is primed.
- Starting it. After your system is primed with fresh diesel, our engineers start the engine and confirm it runs smoothly.
The car has fresh diesel running through it before our technicians go. If it has been noticed early, lasting damage is very uncommon, and the vehicle goes back to normal use straight away.
After the fuel drain is done: driving in Newton once more
- Nothing special is needed after a start with clean diesel — normal driving will do.
- Pull over and call us back if anything seems wrong early on — a light on your dash, smoke from the exhaust, an idle that is lumpy, or a throttle with a dead spot.
- The work may matter later with a hire company, an insurer or a fleet manager. Hold on to the documents.
- Read the label on the petrol pump next time, not the colour of the handle.
About Newton itself
Newton is a suburban area in Swansea, situated on the coast of south Wales at an elevation of around 85 metres. Newton lies approximately 4.5 miles west of Swansea city centre, near the communities of Norton, Langland, and Mumbles. Newton has a population of around 3826 people, predominantly living in detached housing.
Newton and nearby: fuel drains across the area
Petrol in diesel call-outs around Newton and in Norton, Langland or Mumbles all reach the same teams, which reach most of Swansea as well. Somewhere tricky to explain, or close to a boundary? Asking beats guessing — ring.
Leave it off and ring: petrol in a diesel around Swansea
Petrol in Diesel takes it from there — on your drive, at the kerbside, on the forecourt — once you have done stage one: keys out, motor off, receipt in your pocket.