Petrol in a Diesel Car in Lower Bourne
With that tank still carrying the petrol and the motor not yet run, nearly every job needs only a drain, so leave the motor off. That outcome is settled in the minutes immediately after the fill-up, and not by the amount that got in. All over Lower Bourne and the remainder of Surrey, Petrol in Diesel drains your car and cleans it where it stands, whether by a roadside, on a driveway or at a forecourt. A single call our way is plenty: our engineers shall tell you what follows next. Do this first.
The next five steps: petrol in a diesel
- Do not fire it up. Turned on regardless? Then never trust it. Diesel in a petrol car generally can't run, and so the person stops and the wear stops with them. Petrol in a diesel? It starts. It ticks over. It drives off fine, for a few miles. Most people get that backwards. It is not fine — that fuel system is wearing down every mile you drive.
- Leave the ignition alone as well. Diesel does two jobs: it ignites, and before it ignites it greases that high-pressure pump and its injectors. Petrol handles the first and not the second. Turning the car's ignition on is usually all it takes to prime the system, which carries this petrol out of that tank then into exactly those parts.
- Don't put diesel on top to thin it. A diesel fuel system will not tolerate petrol by percentage as that advice suggests, and topping up clears nothing — it merely hands you a fuller tank of the same mix. The octane makes no difference either: super unleaded is still petrol.
- Stay still if it is wise to. Hazards on, engine off, keep the vehicle. Wherever you have stopped — the verge on Grovelands, anywhere — an odd location for us is better than a started diesel, and nothing is easier for us to sort than a vehicle that never moved.
- Get your whereabouts prepared before you call. A postcode that starts GU10 3 and whatever is next to you with a label on it is the difference between our van arriving and the van circling.
- Call 0333 366 0103. Say what got in, approximately how many litres, plus if your car has run. These three replies settle your whole call-out.
On the forecourt: clearing petrol from your diesel
Pumps are where this job usually starts, and where a big part of it ends. Our technicians work on garage forecourts all the time, with the owner's permission, and so if you're still at Texaco that's usually where this drain happens.
At a garage, it is stopped with the engine never run, and no place else does that. The few seconds between checking your receipt and reaching for your key decide how much requires flushing. Anywhere other than a forecourt — a car park, a driveway, a lay-by — the vehicle was switched on and moved to get there, so fuel was drawn from the tank, through your filter and into the high-pressure fuel pump. That means the fuel lines and your filter need cleaning as well as your tank. It is not a catastrophe, and we can still deal with it where the car sits.
Push it out of the way if the staff suggest it, and they usually will. The next customer gets past the petrol pump, and that's worth doing. Shifting it four spaces does not warrant starting it.
Lower Bourne plus the villages beside it
These same trips carry us to The Bourne, Middle Bourne, Compton, Boundstone and Shortheath along with Lower Bourne, which is a residential suburb.
There are pages for most locations around Surrey, and the ones listed above are merely the nearest neighbours — so yours being left off this list tells you nothing about if we come. Assuming is the mistake to avoid, particularly on a boundary or somewhere a satnav gets lost. Phone to check.
The area the page includes is on the map. All of it is ground our technicians cover: a kerbside, a forecourt, a private drive, a car park. You don't drive the car anywhere.
Your diesel Ford Focus will have seemed perfectly normal on the way back from South Farnham School. They do, and that's the catch with petrol in a diesel instead of the other way round. Put diesel in a petrol vehicle and it mostly won't run, and so the driver stops and the wear stops with them. Put petrol in a diesel and it starts, ticks over and moves off as though nothing has happened — all while your high-pressure pump works without the protection your fuel is supposed to be supplying. Nothing warns you, as from the driver's seat there's nothing to warn you about. Ring us with about how far you went and how hard you drove it; the second one counts more than the first.
Chance the drive home from The Spotted Cow? No. It will start and it will move off perfectly well, which is the trouble — a diesel on a diluted tank runs generally while wearing down the components your fuel should be lubricating. Park the Mercedes C-Class then call us.
A diesel injection system works hydraulically as well as chemically: your fuel has to hold pressure, not merely burn. Dilute that fuel and pressure which should build and stay built leaks past gaps instead, leaving your engine a poorer, later, less even delivery than it was engineered round. Petrol thins diesel, and diesel has to be thick enough to seal the tightly fitted components it runs through — that's the full process. It explains the usual Bourne Recreation Ground call too: a diesel Dacia Duster that travelled out without fuss and came back down on power, uneven at idle, maybe smoking a little. None of which is the motor failing, and that is the bit worth hearing. Your fuel has stopped acting like diesel. Put your fuel right and it stops.
Petrol in a diesel does its harm as a share, which is the reason our engineers ask at all: the same few litres sitting in an almost empty tank make a far stronger blend than they would in a full one. And petrol is rated on how well it resists igniting under pressure — the opposite of what a diesel needs — so a stronger mix knocks more, smokes more, goes flatter. None of which means you need an answer ready. Almost no one knows how full your tank was in a vehicle collected two days ago, and our technicians work that out on the spot. Do call the hire or company firm first, though: some agreements want them to sign off the work, and that's far quicker settled before than after. Then ring us about the Vauxhall Astra near St Martin by the Green.
What occurs next is the problem. Your engine straight away pulls the petrol still resting in the fuel filter and the feed lines back round through your pump a second time, since draining a tank does nothing about fuel that has already left it. Drain it and put clean diesel in, somebody certain will tell you — and that advice is half true, because do it to a diesel Audi A6 parked up, 5th Farnham (Bourne) Scout Group say, and the thing starts, which is what makes it sound reasonable. Phone us instead. Our engineers flush your circuit and take your filter off where your vehicle has a working one, and that is the difference between the vehicle being fixed and your car just starting.
Stranded at the roadside somewhere around Lower Bourne?
Not everyone finds a safe spot to pull in. If you realised after setting off and ended up on the verge on Bourne Grove, or at a lay-by somewhere with the hazard lights going, that's a normal call for us and not a rare one.
Clear of your car when it's not safe to sit there, by it when it is. Don't fire it up to reach a nicer location. It'll go — a diesel on petrol generally obliges — and each mile of obliging pulls the mixture deeper into the fuel system. We will send the van to a difficult spot without any trouble, and for the vehicle that is much better than pressing on.
Run it already? Pull over, then read this
The M3 is the road which matters now, and it runs under 10 miles from Lower Bourne. A misfuelled diesel will often take you onto it and some distance along before anything seems wrong, while the symptoms when they come are typically a loss of power, an uneven idle and smoke instead of a neat stop.
The next safe exit is the one to take. Switch off there, then leave the restarting alone. Presume the worst of that on a long drive. Anything near the under 25 miles to the nearest city, and the contamination has been through your filter, through the pump, through your injectors. Tell us when you phone. What our engineers bring differs.
All about Lower Bourne
Lower Bourne is a suburban area in Surrey, situated near the River Wey and characterised by its detached housing stock. Lower Bourne sits at an elevation of 97 metres, with The Bourne and Middle Bourne nearby, and is located approximately 35 miles from London. Lower Bourne is part of a larger residential area that includes Compton, and its riverside setting contributes to its local environment.
When our engineers get to you around Lower Bourne: what happens
- Our engineers find out what got in, how much, and if your engine has run. The responses alter the work, which is why our engineers ask before quoting.
- We drain the tank of all the tainted mixture.
- Lines purged, filter cleared. Whatever remains after that isn't the thing that caused the trouble.
- Our technicians pour new diesel in and bleed your system.
- Our technicians start the engine and check it runs smoothly on clean diesel.
That leaves it ready to pull away. There's no need for a workshop at any stage, as the work is all done where the vehicle is, and when it is noticed early, long-term damage is very unusual.
Lower Bourne AdBlue removal is a distinct problem
AdBlue instead of petrol? Then the opening rule is unchanged — your motor stays off — while the problem under it is a separate one altogether. The lubrication a fuel system relies on gets stripped away by petrol, which dilutes your diesel. AdBlue is urea dissolved in water, and in a diesel tank it brings rust and residue instead.
We handle both, and AdBlue removal around Lower Bourne has its own page with the detail — including why it is often the more serious of the two.
Paying for a petrol-in-diesel fuel drain in Lower Bourne
Our technicians cannot put one figure on this page truthfully, since this job isn't one job. What changes it:
- This is the key one: whether the engine has been started, or driven.
- The tank's capacity, set against how much of the wrong fuel went into it.
- The type of fluid in the tank, unleaded or AdBlue.
- Where is it? And can a technician reach it and work there sensibly?
The car, the quantity, whether it has run — give us those and the answer comes back clear rather than as a range. Vehicle at home, going nowhere, nothing time-critical about it — is good for that.
Questions we hear about petrol in diesel around Lower Bourne
At a petrol station in Lower Bourne, can you do a fuel drain there?
Yes, and it's where a good part of this work takes place. Tell us which one you are at when you ring and we will tell you whether our engineers can work there. With the site's permission our technicians work at BP and the other forecourts around town regularly.
How much petrol in a diesel is too much?
Whether your engine has run counts a lot more, though the proportion matters too, rather than the litres. An almost empty tank with five litres in it, against a full one with the same five: distinct scenarios, of course. Either way, the work needed comes down to one thing, which is if the system has had that mixture pulled through it.
I drove the vehicle after putting petrol in my diesel. Now what?
Somewhere safe, then stop, then turn off and leave it off. Driving takes the issue along — out of the tank, into the pump and injectors. People fear it a good deal more than the recovery rate warrants, mind. The one really useful thing left to you isn't restarting the vehicle.
My warranty — does a fuel drain void it?
It is not a modification, so a drain and flush carried out properly doesn't void a manufacturer's warranty. What's likelier to start an argument is a diesel that has been run on petrol. One more good reason for your engine to remain off.
Adding two-stroke oil, then driving home
Two-stroke oil solves a different issue, and an old one at that. Nothing it does puts back what petrol diluted. No. Petrol stays in that tank later, whatever else goes in, and your pump gets no break from it.
A main dealer for petrol in a diesel — necessary?
You don't need one. The vehicle is drained and cleaned wherever it is, with no need to bring it to a main dealer.
Still with your vehicle?
Do not switch it back on.
Turn it off somewhere sensible then leave it off, if you have already driven it. A parked, cold vehicle is the best position to be in, and this is recoverable from far more frequently than drivers fear.
At the kerbside, on the forecourt or at home — mobile fuel draining around Lower Bourne and throughout Surrey.