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Petrol in Diesel

0333 366 0103

Put Petrol in a Diesel Car in The Moor?

If you have not started the engine as yet, do not. A fuel drain and nothing else is nearly always what a car needs while the fuel is still inside that tank and the engine has not run, which is why it's the following few minutes that count, not how much was put in. Petrol in Diesel comes to the car wherever it has ended up in The Moor or the remainder of Kent, on the forecourt, by the roadside or on a private drive, and drains and cleans it there. Phone before anything else happens, so you will hear what comes from there.

Call 0333 366 0103

What to try now about petrol in a diesel

  • Don't crank it. Fired up regardless? Then never trust it. Diesel in a petrol vehicle generally will not run, so the driver stops and the harm halts with them. Petrol in a diesel? It starts. It idles. It moves off normally, for several miles. People get that reversed. It's not fine — that fuel system is wearing down every mile you do.
  • Diesel combusts, and before it ignites it protects — your injection pump, its injectors. Petrol does only the burning. So leave the car's ignition be as well: switching it on is commonly all it takes to prime your system, and priming pulls petrol from your tank into precisely those components.
  • That advice supposes a diesel fuel system tolerates petrol by percentage. It does not. Tip diesel on top and nothing at all is taken out; what you have is a larger tank of the same mixture. And no, the grade makes no difference — super unleaded is just petrol.
  • Stay still if it's wise to. Hazards on, motor off, keep the vehicle. Wherever you have stopped — the verge on Talbot Road, anywhere — an awkward spot for us is better than a started engine, and nothing is easier for us to sort than a car that never shifted.
  • A van turning up rather than circling depends on two things: a postcode beginning TN18 4, and whatever is nearest to you with a label on it. Get both ready before you phone.
  • Three replies determine your whole job: the fuel you tipped in, the ballpark measure of it, and if anything has been going since. The line is 0333 366 0103.

The high-pressure fuel pump spent that morning commute labouring on a fluid that had lost a great deal of the protection it is built around. Diesel greases that pump, and your injectors with it, before any of the fuel burns; petrol does the burning and none of the oiling. So imagine a diesel Volkswagen Golf, topped up at quarter past eight, driven in to work, and parked sitting at Etchingham till it dawns on you around eleven. Three hours of sitting have altered nothing about it. The couple of miles before that changed plenty, which is why the thing our engineers put to you is about mileage rather than hours. Call us. Leave the car just where it sits.

How far, and how hard? The second of those matters more than the first, so have both ready. Your BMW 3 Series will have seemed perfectly normal on the way back from Hawkhurst Church of England Primary School — they all do, and that is the snag. Diesel into a petrol vehicle generally will not run at all: the motorist stops, and so does the damage. Petrol into a diesel starts, idles, pulls away like nothing happened, while the high-pressure pump gets on with its work minus the lubrication your fuel should be giving it. No warning arrives, as behind the wheel nothing appears wrong.

None of it is your engine failing. That's the bit worth hearing, and it's why the usual the green space at the edge of the village call ends better than it sounds: a diesel Citroen C3 drives out there without a murmur, comes back with the power gone, the idle uneven and perhaps a little smoke, and the cause is your fuel no longer behaving like diesel. Diesel has to be heavy enough to seal the close-fitting parts it passes through; petrol dilutes it; and a diesel injection system is hydraulic as much as chemical, needing your fuel to hold pressure instead of only to burn. So pressure that should build then stay built escapes past gaps, delivery shows up weaker and later and less even than engineered, and all of that stops once your fuel is put right.

Strange locations are where this happens most, and the reason is mechanical instead of slapdash: the narrower petrol nozzle fits a modern diesel filler neck with almost no resistance at all. Fuelled up by Copt Hall without thinking, in a diesel Ford Fiesta you have had for two days? Phone us where you are. Hire and courtesy cars often get driven further before anybody spots it, and mileage is what decides how much petrol gets to the injectors.

The filter, the fuel lines, your pump and the rail: that is where the mixture is once a diesel has run, and it doesn't come back out with that tank contents. So your tank is not where most of the problem waits by this point, and a diesel Peugeot 2008 that got near Village Hall needs your system cleared instead of cleared.

Mobile fuel drain van at a diesel car in The Moor

At a forecourt: clearing petrol from the diesel

A good chunk of the job is finished at the pump, as that's where it mostly begins. We work on garage forecourts routinely, with the site's permission, so if you're still at BP that is typically where this drain takes place.

Before your engine has started — a forecourt is the single location it ends up caught. We can still deal with it where it sits, even away from the pumps. In a car park, on a drive or in a lay-by, the car has been started and driven there, and that sucked fuel through the filter then into the high-pressure fuel pump, right from that tank. None of that is a disaster, although the flush then has to reach past your tank to your lines and your filter, and the few seconds between checking the till receipt and going for the key are what settle that.

Clear of the petrol pump, the next motorist can get by — so yes, let the attendants help you move the vehicle. Well worth it. Shifting it four bays does not merit starting the motor.

Will our technicians cover your part of The Moor?

These same trips take us to Hawkhurst, Highgate, High Street, Little Conghurst and Pipsden as well as The Moor, which is a rural village.

There are pages for most places around Kent, and the ones listed above are simply the closest neighbours — so yours being absent from the list means nothing about whether our engineers come. Close to the border, or anywhere the satnav can't find? Ring us to enquire instead of assuming.

This map shows the patch this page covers. We work at the roadside, at forecourts, on driveways and at car parks over all of it, and your vehicle does not need to come to us.

Stuck on the kerb somewhere around The Moor?

A chance to stop somewhere sensible does not come to everybody. If you worked it out after setting off and ended up by the verge on Pipers Lane, or in a lay-by somewhere with your hazards going, that is a common call for us rather than a rare one.

Okay there? Wait beside it. Not safe? Step out and away from it. Never fire up your motor to nurse the car somewhere better — a diesel running on petrol will often oblige, and every mile it obliges for is drawing the blend further into the fuel system. Driving on does the vehicle far more harm than our van driving out to an inconvenient location, and that's no trouble for us.

Some miles on petrol in a diesel: what next?

Here is where the local M20 comes in — under 25 miles away from The Moor. It will frequently get you onto it, and some way along, before you notice a thing. Then it is some smoke, an uneven idle and power ebbing away — not a clean stop. Misfuelled diesels rarely give you one of those.

Never restart it to reposition. Come off at the next sensible junction and switch off. It changes what our engineers bring, so mention it when you call: on a longer run — anything close to the under 50 miles to the nearest city — take it the contamination has been through the filter, your pump and your injectors.

The Moor itself

The Moor is a small village in Kent, situated inland at an elevation of 67 metres, approximately 42 miles from London. The Moor lies near the towns of Hawkhurst and Canterbury, with the latter being about 30 miles away. The Moor has a population of around 946 people, predominantly living in detached houses.

The visit in The Moor, step by step

  • We ask first, price after. What got in? How much? Has your engine run? Those responses alter what the work really is.
  • The tank is drained completely.
  • Lines flushed, filter cleaned. Whatever is left afterwards isn't the thing that caused the issue.
  • Bleeding your system follows, once clean diesel is in.
  • Once it's turned on, our engineers confirm it runs properly on clean diesel.

Then it's ready to drive away. Everything is done where the car is, so it never has to go to a garage, and when it has been caught early, permanent damage is very rare.

AdBlue in your diesel tank by mistake, in The Moor?

If what got in was AdBlue instead of petrol, the first rule is unchanged — never crank it — but this fault is not. The lubrication a fuel system relies on gets taken away by petrol, which weakens the diesel. AdBlue is urea in water, and in a diesel tank it causes corrosion and deposits in its place.

Frequently the more significant of the two, AdBlue — and the full story sits on its own The Moor page. Both are ours to handle.

Paying for a petrol-in-diesel drain in The Moor

Truthfully, no single price belongs on a page like this. This job changes. Here is what varies it:

  • Has it been run or driven? Nothing else counts for as much.
  • The tank's capacity, set against how much of the wrong fuel went into it.
  • Which went in: petrol or AdBlue.
  • Where the vehicle is, and if a technician can sensibly reach and work on it.

The vehicle, the amount, whether it has run — give us those and the answer comes back clear instead of as a range. If it isn't pressing — the vehicle is at home and going nowhere — is fine too.

Questions we get about petrol in diesel around The Moor

At a petrol station in The Moor, can you do a fuel drain there?

A good part of this work happens there, so yes. Routinely, provided the site consents: Shell, plus every other forecourt nearby. Say on the phone where precisely you have stopped. Whether our technicians can work in that spot is something our technicians answer straight away.

How much petrol is too much for a diesel?

Proportion decides it rather than litres — and more than either, whether the engine has run. What determines how much work is required is if that blend has been pulled through the fuel system — since even though five litres in a nearly empty tank is a distinct case from five in a full one, either way that is the query.

I put petrol in my diesel and drove the vehicle. What now?

Pull in somewhere sensible, turn off, and leave the car off. Not restarting it is the single most helpful thing available to you now. Driving does shift the issue out of your tank then into the pump and injectors, yes, and it remains fixable far more often than people assume.

Fuel drains and manufacturer warranties

A drain and flush carried out properly is not an alteration and does not invalidate a manufacturer's warranty. Another reason to leave it turned off: running a diesel on petrol is the thing more likely to cause a disagreement with one.

Two-stroke oil in the tank, and then home?

Two-stroke oil solves a separate issue, and an old one at that. Nothing it does puts back what petrol diluted. No. Later on? Still petrol in that tank, and a pump that has to put up with the stuff.

Does petrol in a diesel have to go to a main dealer?

There's no need to bring it to a main dealer, since we drain and clean your car wherever it is.

Still with your vehicle?

Shut off is the way it stays.

If you have already driven the car, stop somewhere sensible, switch it off then leave it off. This is recoverable from far more often than motorists expect, and a stationary, cold vehicle is the best position to be in.

At the kerbside, on the forecourt or at home — mobile fuel draining in The Moor and throughout Kent.

Call 0333 366 0103