Winterbourne: Put Petrol in a Diesel Car?
Do not turn on your engine. If the petrol is still sitting in your tank and the motor has not run, a drain is nearly always all it needs — and that gets settled in the coming few minutes, not by how much got in. Petrol in Diesel drains and flushes misfuelled cars where they are, across Winterbourne and the remainder of Gloucestershire, on the forecourt, at the roadside or on a driveway. Call us and then our team shall show you what comes after that before you attempt any more.
Petrol in a diesel: what to try next
- While you drive, your pump and your injectors suffer. That is why you do not start the vehicle, and why you do not depend on it once it has started. The catch about petrol in a diesel specifically — the bit most people get wrong — is that it pulls away normally for the first mile or two. Diesel in a petrol motor normally won't run at all, which stops the driver and stops the harm with them. This one lets you keep going.
- Turning your ignition on frequently primes the system, and priming is what moves petrol out of that tank then into your pump and injectors. Those are the components diesel keeps oiled on its way through, before it ignites. Petrol manages the burning and none of the lubricating. Leave the car's ignition off.
- That advice presumes a diesel fuel system accepts petrol by percentage. It won't. Put diesel on top and nothing at all is removed; what you end with is a fuller tank of the same blend. And no, the octane makes no difference — super unleaded is simply petrol.
- Sit tight if it's sensible to. Hazards on, engine off, keep the car. Wherever you have stopped — the verge on High Street, anywhere — an awkward location for us is better than a started diesel, and nothing is quicker for us to handle than a vehicle that never moved.
- Know where you are before phoning. A postcode beginning BS36 1, and the name of whatever is next to you. Otherwise the technician circles rather than arriving.
- Three replies decide your whole call-out: the liquid you put in, the ballpark measure involved, plus whether anything has been running since. Our line is 0333 366 0103.
Quarter past eight. A quick fill-up on the road in. Somewhere around eleven it occurs to you, and by then your diesel Volkswagen Golf has sat outside Bristol Parkway for three hours. Phone then keep the vehicle where it is. What counts is the trip in, because diesel both combusts and — before that — greases your pump and the fuel injectors, but petrol only ever burns. Those few miles worked your pump on a fluid drained of a great deal of its protection, and no amount of sitting in a car park puts any of it back. Hence the question about distance instead of hours standing, and hence the request to leave your keys where they are until our engineers arrive.
Car parks like the one at Winterbourne Co-op are a spot we attend frequently, and your fuel is hardly ever the awkward part. That bay is: cars either side, a trolley shelter behind, sometimes a height barrier on the way in that settles whether a technician can get to you at all. So tell us how hemmed in you are when you phone, and which way the vehicle is facing. If our technicians can't work next to your diesel Nissan Qashqai we will roll the vehicle without firing it — and that is not fussiness about a couple of seconds of running. Any start primes your fuel system and draws more of the mixture out of the tank and on to your pump, and so a motor shuffled twice into a roomier spot has quietly turned into a harder job than one left precisely where it stopped.
The components that should be getting oiled are grinding instead, and the car gives no sign of it: a diesel on a weakened tank fires up and drives off quite happily. Chance the drive home from George and Dragon? No. Phone and leave the BMW 5 Series where it is.
Switch off where you have stopped, and do not start it to find somewhere better — close to St Michael the Archangel or anywhere at all. Clattering, a lumpy idle, white smoke and a dead throttle are a wrongly fuelled diesel Citroen C3 telling you what is wrong.
It got a few streets and stopped. The throttle went soft, your idle turned ragged, and your diesel Kia Sportage is now waiting by The Greenfield Centre. That deadness is your fuel failing to build pressure fully instead of the motor failing — and since there is no dashboard light for it, vehicles in that position typically get driven once more before anyone rings. Please don't. Turn it off and call us.
Draining petrol from the diesel on the forecourt
It starts at a forecourt, usually. Often enough the work finishes at one as well. We operate on garage forecourts regularly, with the station's permission, and so if you are still at Esso that's typically where this drain happens.
Nowhere else other than a garage can it be stopped with your engine still cold. The few seconds between checking the receipt and reaching for your key settle how much needs rinsing. Everywhere other than the forecourt — a car park, a driveway, a lay-by — the vehicle was started and moved to get there, so fuel was sucked from the tank, through the fuel filter and into your high-pressure pump. That means your lines and the fuel filter require cleaning as well as your tank. It's not a calamity, and our technicians can still deal with it where the car is.
The attendants will generally offer to roll the car clear of the petrol pump so the next customer can get through. That is worth doing. Rolling the car four spaces doesn't merit starting the engine.
Winterbourne plus the towns next to it
Winterbourne Down, Watleys End, Whiteshill, Moorend, Kendleshire — every one of them on our trips that bring us across to Winterbourne itself, a village.
Our technicians still come. Those names above are only the closest neighbours, and a page exists for the majority of locations across Gloucestershire, and so an absence from the list is not an absence from the coverage. Phone and enquire instead of guessing, above all when you are on a boundary or anywhere a satnav can't find.
This map is the ground this page spans. Our technicians work roadside, at forecourts, on driveways and in car parks throughout all of that, and your car does not need to travel to us.
Stuck on the kerbside somewhere around Winterbourne?
Not everybody has a safe spot to stop. Set off, then realised? Ended up along the verge of Flaxpits Lane, or sat in some lay-by with the hazard lights on? That's a routine call here. Not a rare one.
Out of the car if it's not safe to be there, beside it when it is. Every mile a diesel obliges you for on petrol pulls that mixture further into the fuel system — and oblige it usually will, which is why your motor does not get restarted to limp somewhere better. Our van heading to a tricky place is no trouble for us, and it's much better for your car than carrying on.
A couple of miles on petrol in a diesel: now what?
Here is where the M4 comes in — under a mile from Winterbourne. A misfilled diesel will frequently take you onto it and some distance along before anything feels wrong, while the symptoms when they arrive are normally lost power, an uneven idle and smoke rather than a clean stop.
Don't restart it to reposition. Get off at the next sensible exit then switch off. Long trip? Anything near the under 10 miles to the nearest city and you should assume the lot — filter, pump, injectors, all of it arrived at by the mixture. Say that on the call, as it alters what goes in the van.
About Winterbourne
Winterbourne is a village in Gloucestershire, situated on the banks of a river at an elevation of around 72 metres. Winterbourne lies close to the city of Bristol, approximately 6 miles to the south west, and is part of a network of nearby settlements including Winterbourne Down and Whiteshill. Winterbourne has a mix of housing types, with semi-detached homes being particularly prevalent. Winterbourne is located within commuting distance of Bristol and is also around 102 miles west of London.
What comes next when our technicians get to you in Winterbourne
- The replies shape the work, which is why our technicians ask before pricing: what got in, how much of that, and if your motor has run.
- The tank is cleared of it.
- Our engineers purge the lines and clear the fuel filter, so what's remaining in the fuel system is not what caused the problem.
- Our technicians pour fresh diesel in and bleed your system.
- When it's fired up, our technicians make sure it runs properly on clean diesel.
The car is then ready for you to drive away. All of this is done where the vehicle is, so it never has to go to a workshop, and when it has been noticed quickly, lasting damage is very uncommon.
A distinct matter: AdBlue in a diesel tank around Winterbourne
AdBlue instead of petrol? Then the first rule is unchanged — the motor stays off — while the problem beneath it's a distinct one altogether. Thinned diesel, and no protection left for your fuel system that relies on it. That is petrol. Urea dissolved in water, AdBlue, and in a diesel tank that causes corrosion and residue.
Both are ours. There's a separate Winterbourne page for AdBlue removal, with the detail on it — including the reasons it often turns out to be the worse of the two.
Paying for a petrol-in-diesel drain in Winterbourne
One number would not be fair here, since this is not one job. These are the things that change it:
- Whether your motor has been run or driven. This is the main one.
- The tank's capacity, set against how much of the wrong fuel got into it.
- Whether it is unleaded or AdBlue.
- Where is it? And can a van reach it and work there sensibly?
Tell us what the car is, how much got in, and if your engine has run. A clear answer comes back, not a range. For the vehicle at home that's going nowhere and isn't time-critical, is fine too.
Questions we get about petrol in diesel in Winterbourne
I'm on a forecourt in Winterbourne. Can you drain the vehicle here?
Yes, and it's where a fair part of this work happens. We attend BP and the other forecourts nearby routinely, with the site's consent — tell us which one you are at when you call and we will tell you whether our technicians can work there.
A few litres of petrol in a diesel — too much?
It rests on the proportion rather than the litres, and much more on whether your engine has run. Five litres into a nearly dry tank is not five into a full one, no. But both land on the same question in the end: has that blend been sucked right through, or has it not?
Already driven it with petrol in the diesel? What now?
Stop somewhere safe, switch off, and keep the vehicle off. Not restarting it is the single most helpful thing available to you now. Driving does move the issue out of your tank and into the pump and injectors, yes, and it remains salvageable far more frequently than drivers expect.
My warranty — does a fuel drain void it?
It's not a modification, so a drain and flush carried out properly doesn't cancel a manufacturer's warranty. Another reason to leave it turned off: running a diesel on petrol is the thing likelier to cause a dispute with one.
Can I just add two-stroke oil and drive home?
No. Two-stroke oil is an old workaround for a distinct issue and it doesn't replace what petrol has thinned. That tank still has petrol in it later on, and your pump still has to live with it.
Does petrol in a diesel have to go to a main dealer?
Not at all. Our technicians drain and clean the vehicle wherever it is, so there is no need to bring it to a main dealer.
Is your vehicle still with you?
Keep the engine turned off.
Switch it off somewhere safe then keep it off, if you have already driven it. This is recoverable from a lot more commonly than motorists expect, and a stationary, cold vehicle is the best position to be in.
Draining misfilled motors, Winterbourne and the rest of Gloucestershire, wherever they are. Kerbside. Forecourt. Home.