Deepdene: Put Petrol in a Diesel Car?
Do not fire up the engine. While the petrol is still sitting in your tank and the engine has not yet run, a drain is almost always all it requires — and that gets determined in the following few minutes, not by how much was put in. Petrol in Diesel drains and flushes misfuelled cars where they stand, across Deepdene and the rest of Surrey, on the forecourt, by the roadside or on a driveway. Phone before anything else happens, and you will learn what follows after that.
Petrol in a diesel: what to try next
- Do not crank it — and never rely on it when it runs. This is the thing people get wrong about petrol in a diesel specifically. A petrol engine given diesel usually just cannot run, so the motorist stops and the damage ends with them. A diesel given petrol typically starts, idles and moves off just fine for a couple of miles. It's not all right. It's wearing that fuel system whenever you drive.
- Leave the car's ignition alone also. Diesel has two tasks: it ignites, and before it burns it protects your high-pressure pump and the injectors. Petrol does the first and not the second. Turning the car's ignition on is usually sufficient to prime your system, which moves the petrol out of the tank then into just those parts.
- Do not pour diesel on top to thin it. A diesel fuel system won't tolerate petrol by percentage in the way that guidance suggests, and topping up removes nothing — it simply leaves you a larger tank of the same mixture. The grade makes no difference either: super unleaded is just petrol.
- We would much rather drive to a difficult place than have it started — so if you sensibly can, stay still. Nothing is simpler to deal with than a motor that has not moved. On the verge on Ladyegate Road, that means hazards on then leave the vehicle.
- Have your position ready before you call. A postcode that starts RH5 4 and whatever is nearest to you with a name on it is the difference between a van arriving and a van circling.
- Three answers shape the entire job: the fuel you put in, the rough volume involved, plus whether it has been running since. The line is 0333 366 0103.
Nothing about the hours since has lost you anything. Fuel sitting in a tank is dormant, and so a diesel Skoda Octavia left outside Dorking Deepdene this morning is no worse at five than it was at nine — what pushed thinned diesel through the pump was the run in. Ring us before you head off to fetch it.
The enquiry we want goes like this: diesel Peugeot 308, a few litres of unleaded, done a couple of miles, now turned off at Sainsbury's. What we're truly asking is how much fuel your pump has drawn — not how long ago it was.
Out there fine, back flat. If that was the drive to Hopewood Park, look at that tank. Diesel gets diluted by petrol, and thin fuel leaks past the fine clearances meant to build injection pressure — so every additional mile the diesel Ford Focus covered, the less pressure it held onto. Somewhere sensible, turn off, call us.
Why so direct about leaving your keys alone? Because the pump is ahead of the fuel injectors, and a worn one sends whatever it sheds onward with the fuel. Ring us. Leave the Mercedes C-Class near Deepdene House (site of).
No warning exists for this, which is why cars in that position usually get driven once more before anyone phones. Do not be one of them. The throttle went soft and the idle turned ragged after a few streets, and your diesel Citroen C3 is now sitting close to Dorking Sports Centre. Softness there means fuel that can't build pressure correctly rather than a motor giving up. Switch off. Ring us.
Can petrol be taken from a diesel at a forecourt?
Much of the work begins at the pump, which means a big chunk of it ends up completed at one. If you are still at the forecourt at BP, that's typically where the drain takes place — we work on garage forecourts regularly, with the owner's consent.
At a forecourt, it is caught with the motor never run, and no place else manages it. Our technicians can still put it right where it sits, even away from the forecourt. In a car park, on a driveway or in a lay-by, the vehicle has been switched on and driven there, and that drew fuel through the fuel filter and into the high-pressure pump, right from the tank. None of that is a catastrophe, but the flush then has to go past the tank to the lines and the fuel filter, and the few seconds between checking your receipt and going for the keys are what decide that.
Out from the pump, the next customer can get by — so yes, let the staff help you push the vehicle. Very much worth doing. Four vehicle lengths is not worth a restart.
Areas our team cover in Deepdene
Deepdene is a small village, and we head out to the town and to the areas near it on the usual trips: Dorking, Rose Hill, Pixham, Tower Hill and Stonebridge.
Not on that list? It tells you nothing. The places above are simply the nearest few, and most locations around Surrey have a page of their own elsewhere on this site. Close to the boundary, or anywhere your satnav can't find? Ring us to enquire instead of assuming.
Use our map for the area included on this page. We operate roadside, at forecourts, on driveways and at car parks throughout all of that, and the vehicle does not need to come to us.
Deepdene: broken down where you stopped
Some people have no safe spot to stop at all. Hazards going in a lay-by somewhere, or stopped on the verge on Deepdene Wood since you noticed after setting off — our engineers take that call so often that it is the usual kind.
Whether you remain beside the car or move away from it depends on whether staying there looks sensible. Do not fire it up to reach a safer place. It will go — a diesel on petrol normally obliges — and each mile of obliging drags that mixture deeper into your fuel system. We'll bring our van to a difficult location without any bother, and for your car that is much better than carrying on.
Run it already? Pull in, and check below
Your M25 is the road that matters here, and it lies under 5 miles from Deepdene. A wrongly fuelled diesel will usually get you onto it and some way along before anything seems wrong, while the symptoms when they arrive are generally a loss of power, a rough idle and some smoke instead of a tidy stop.
Take the first junction that's sensible, pull up there, and never restart it to move it. Long trip? Anything approaching the under 25 miles to the closest city and you should presume the lot — filter, pump, injectors, all of it got to by the petrol. Say that on the phone, because it affects what goes in the van.
Deepdene itself
Deepdene is a locality in Surrey, situated on the riverside at an elevation of 89 metres, with detached housing being the predominant type of accommodation. Deepdene lies near the towns of Dorking and the residential area of Rose Hill, and is also close to Pixham. Deepdene is located approximately 20.7 miles from London, making it a commuter base for those working in the city. Deepdene has a population of around 714 residents.
When our technicians arrive with you in Deepdene: what follows
- Three things get checked before any price — the fuel that went in, the amount, and whether anything has been run since. Each answer changes the work.
- The tainted fuel comes from the tank.
- Fuel lines are rinsed through and the filter cleared, leaving nothing in your system that caused any of this.
- The system gets primed, on fresh diesel.
- It's started with fresh diesel in it, and our technicians make sure that it is running properly.
From there, you're ready to drive away. Permanent damage is very unusual when it has been noticed quickly, and because all of this is done where the vehicle is, it never has to go to a garage.
A separate problem: AdBlue in a diesel tank around Deepdene
Never start it: that first step applies whether what was put in was AdBlue or petrol. What changes is this problem itself. Petrol thins the diesel and strips the protection your fuel system depends on. Urea in water, AdBlue, and in a diesel tank that leads to corrosion and residue.
Our engineers handle both, and AdBlue removal in Deepdene has its own page with the detail — including why it's usually the more significant of the two.
Deepdene prices for a petrol-in-diesel drain
What changes the figure is set out below, because the job is not one job and our engineers can't frankly put a single number on this page.
- Has it been started or driven? Nothing else counts for as much.
- Wrong fuel in, against what that tank holds — that ratio.
- Whether it was petrol or AdBlue.
- Whether a van can safely reach your vehicle and work on it, which rests on where the car is.
Tell us your car, the amount and whether it has run, and you'll get a firm answer instead of a range. Motor at home, going nowhere, nothing urgent about it — is ideal for that.
Deepdene motorists ask us these about petrol in diesel
Can you do a fuel drain at a petrol station around Deepdene?
Yes — forecourts are where a fair part of this takes place. Agreement from the site is the condition. Given that, a forecourt like Esso is somewhere we are often enough, along with the rest of them locally — so name yours on the phone and you'll hear whether working there's possible.
Is there a sensible amount of petrol in a diesel?
Ratio decides it rather than litres — and more than either, whether the motor has run. Five litres in an almost empty tank is a separate case from five in a full one — but either way, the thing that decides how much work is required is if that blend has been sucked through the fuel system.
I put petrol in my diesel and drove the vehicle. What next?
Stop safely. Off. Nothing after that. Driving takes the problem along — out of that tank, into your pump and injectors. People fear it a good deal more than the recovery rate warrants, mind. The one really useful thing left to you is not restarting the car.
Fuel drains and manufacturer warranties
A drain and flush carried out properly isn't a modification and does not void a manufacturer's warranty. Running a diesel on petrol is the thing more likely to cause a disagreement with one, which is another reason to leave the vehicle turned off.
Two-stroke oil in your tank, and then home?
Two-stroke oil solves a separate fault, and an old one at that. Nothing it does puts back what petrol diluted. No. Your tank still has petrol in it later, and your pump still has to put up with it.
A main dealer for petrol in a diesel — needed?
Wherever the car is, we drain and clean it there, so a drive to the main dealer doesn't come into it.
Is your car still with you?
Switched off is the way it stays.
Driven it already? Then somewhere safe, stop, turn off, and no restarting it later. This is recoverable from a lot more often than motorists assume, and a stationary, cold car is the best position to be in.
Clearing misfilled cars, Deepdene and the rest of Surrey, wherever they are. Kerbside. Forecourt. Home.