Put Petrol in a Diesel Car in Sion Hill? Don't Start It
With your tank still carrying the fuel and the engine not yet started, almost every job takes only a drain, so keep the engine off. That outcome is settled in the minutes right after filling up, and not by the amount that went in. Throughout Sion Hill and the remainder of Somerset, Petrol in Diesel drains the vehicle and cleans it where it is, whether by a roadside, on a driveway or at a forecourt. Just one ring to us is plenty: our engineers shall explain what happens after this. Make it right away.
Petrol in a diesel: what to try first
- Feed a petrol motor diesel and it will typically refuse to run at all, so the driver stops there and so does the damage. Feed a diesel petrol and the engine starts, it ticks over, it moves off — all right for several miles. Most people have that muddled, which is the thing they get wrong about petrol in a diesel especially. So never fire it up. And having started, never believe it: your fuel system is grinding whenever you drive.
- Switching the car's ignition on frequently primes your system, and priming is what moves petrol out of your tank and into the pump and injectors. Those are the components diesel keeps lubricated on its way through, before it burns. Petrol handles the burning and none of the lubricating. Leave the car's ignition off.
- Don't dilute it. Diesel put on top removes nothing, so all you have is more of what was already there, since percentage isn't how a diesel fuel system handles petrol. Super unleaded? Still petrol. The type makes no difference.
- Our team would much rather get to a difficult spot than have it started — so if you safely can, sit tight. Nothing is quicker to deal with than a car that has not shifted. On the verge on Winifred's Lane, that means hazards on then keep it.
- The van arriving instead of circling depends on two things: a postcode that starts BA1 2, and whatever is nearest to you with a name on it. Get both prepared before you call.
- What was put in, approximately how many litres, plus whether the motor has run — those three facts determine your whole visit. Phone 0333 366 0103 then tell us.
Forecourt draining for petrol in a diesel
Most of the work begins at the pump, so a good portion of it gets done there. We work on garage forecourts regularly, with the site's permission, so if you're still at Esso that is generally where this drain happens.
Nowhere else but a forecourt can it be caught with your engine still unrun. The few seconds between reading the receipt and reaching for the key settle how much requires flushing. Anywhere other than the forecourt — a car park, a private drive, a lay-by — the vehicle was fired up and driven to get there, so fuel was drawn from the tank, through the fuel filter and into the high-pressure fuel pump. That means the lines and the fuel filter require flushing as well as that tank. It's not a disaster, and we can still put it right where the car is.
Attendants will normally pitch in pushing it out from the petrol pump, which lets the next motorist get by. Take the help. Cranking the car to move four car lengths is not.
The tricky part is that bay, not the fuel. Vehicles either side of you, a trolley shelter behind, and from time to time a height bar on the way in that determines if a technician can get to you at all — so when you call from a car park like the one at Co-op Food, mention how much space there is round you and which way round your car is. Those our technicians visit frequently. Should there be no room to work next to the diesel Renault Clio, it gets moved with your engine off, and not out of pedantry over a couple of seconds of running: priming takes place at every start, more of that mix leaves that tank for your pump, and two shunts into a roomier bay have quietly made a harder job of what was simply a vehicle sitting still.
Put diesel in a petrol motor and usually it will not run, and so the motorist stops there and the wear stops with them. Reverse it — petrol into a diesel — and the engine fires up, ticks over and moves off as though nothing had happened, whilst your high-pressure pump works without the lubrication the fuel is meant to be providing. That is the trap, and it's why your diesel BMW 3 Series will have felt perfectly normal coming back from St Andrew's Church School. They always do. From the driver's seat there is nothing to caution you about, and so nothing tells you. Call us with roughly how far you drove, and how hard; the second one counts more than the first.
Chance the drive home from The Marlborough Tavern? Don't. It will start and it will move off just fine, which is the problem — a diesel on a thinned tank behaves generally whilst grinding the parts your fuel should be lubricating. Leave the Peugeot 308 and call us.
Pulled off the forecourt, read the till receipt, and parked your diesel Mercedes C-Class up close to The Bhakti Centre a few hundred yards later? That is about as well as this goes once your engine has turned. Ring us and leave the vehicle off. The short hop truly helps, but it was still a start and a drive, so thinned fuel has got to your filter and the pump — which is why our technicians flush the lines instead of only draining your tank.
A car you picked up two days ago gets driven further before anyone sees anything, which is the hire and courtesy issue in one sentence — and how far it went is what settles the volume of petrol getting to the fuel injectors. Nothing careless about the mistake itself: a modern diesel filler neck takes the slimmer petrol nozzle with practically no resistance, and so new spots see most of these. Ring us from wherever you are, close to St. Stephen's Church or not, and we'll come to the Citroen C3.
Sion Hill plus the areas next to it
Being a residential suburb, Sion Hill gets a steady call, and the villages nearby come along on that same run: Lansdown and Primrose Hill, Beacon Hill and Walcot, Weston Park.
If yours is not on that list it doesn't mean we never come — there are separate pages for nearly all locations across Somerset, and the ones mentioned above are simply the immediate neighbours. Phone and enquire rather than presuming, particularly if you are on a border or anywhere a satnav gets wrong.
That map shows the area this page includes. We operate roadside, on forecourts, on driveways and in car parks throughout all of that, and the vehicle never needs to travel to us.
Sion Hill: stranded wherever you stopped
A chance to stop anywhere sensible doesn't fall to everyone. Hazards flashing in a lay-by somewhere, or pulled onto the verge of Sion Hill as you worked it out after setting off — our technicians take that call so often that it's the ordinary kind.
Fine there? Wait by it. Not safe? Move out and away from it. Do not fire up your engine to limp the car somewhere safer — a diesel running on petrol will often oblige, and every mile it obliges for is pulling the mix further into the fuel system. However tricky the location, it's no problem for us to come to it, and that's much better for the vehicle than carrying on.
Petrol in a diesel, but the car has moved
This is where the M4 comes in — under 10 miles away from Sion Hill. A loss of power, a rough idle, smoke: those are the signs when they appear, rather than a tidy stop — and a misfilled diesel will usually get you onto it and some way along before anything feels wrong at all.
The first safe exit is the one to take. Switch off there, and leave the restarting alone. Long drive? Anything near the under a mile to the nearest city and you should assume the lot — filter, pump, injectors, all of it reached by the mixture. Say that on the phone, because it alters what goes in the van.
Where's Sion Hill?
Sion Hill is a suburban area located on the outskirts of Bath in Somerset, sitting at an elevation of around 100 metres near the lakeside. Sion Hill is characterized by its predominantly flat housing stock, with many residents enjoying views of the surrounding countryside. Sion Hill is close to several other nearby places, including Lansdown, Primrose Hill, and Beacon Hill, and is situated approximately 0.8 miles from the city centre of Bath.
When we get to you around Sion Hill: what we do
- Three things get checked before any quote — the fuel that was put in, the amount, and if anything has been run since. Each answer changes the work.
- Out flows the polluted mixture.
- Lines cleaned, filter cleaned. Whatever remains afterwards isn't the thing that caused the issue.
- We put new diesel in and prime the system.
- The motor is started and checked to make sure it runs properly on fresh diesel.
From there, you are ready to pull away. There's no need for a workshop at any stage, because the work is all done where your car is, and when it is spotted quickly, permanent damage is very unusual.
A different job: AdBlue in a diesel tank around Sion Hill
The issue isn't the same, though the opening instruction is — never crank it — if what was put in was AdBlue instead of petrol. Diluted diesel, and no lubrication left for your fuel system that relies on it. That is petrol. Corrosion and build-up are what a diesel tank ends up with instead, because AdBlue is urea dissolved in water.
Frequently the more serious of the two, AdBlue — and the details lives on its own Sion Hill page. Both are ours to handle.
Sion Hill pricing for a petrol-in-diesel fuel drain
One price wouldn't be fair here, because this isn't one job. These are the things that move it:
- Started? Driven? Either answer matters more than anything else on this list.
- How much of the wrong fuel went in, against how much that tank takes.
- Which went in: unleaded or AdBlue.
- Where is it? And can a van get to it and work there safely?
Tell us what the vehicle is, how much got in, and if the motor has run. A firm answer comes back, not a range. Vehicle at home, going nowhere, nothing pressing about it — is ideal for that.
Questions our technicians hear about petrol in diesel around Sion Hill
Can you do a fuel drain at a petrol station around Sion Hill?
A large part of this work gets done there, so yes. Tell us which one you're at when you phone and we'll tell you whether we can work there. With the station's agreement our technicians work at Sainsbury's and the other forecourts around town regularly.
A couple of litres of petrol in a diesel — too much?
Litres aren't the yardstick. Ratio is, and a lot more than either, it counts whether anything has been run. A nearly empty tank with five litres in it, against a full one with the same five: different situations, certainly. Either way, the work needed comes down to one thing, which is whether the system has had that blend pulled through it.
I drove it after putting petrol in my diesel. What next?
Somewhere safe, then stop, then turn off and leave it off. Driving moves the trouble along — out of the tank, into the pump and injectors. Drivers fear it a good deal more than the recovery rate warrants, mind. The one truly useful thing left to you is not restarting the car.
Will a fuel drain void my warranty?
A manufacturer's warranty withstands a drain and flush done to a proper standard, which is no alteration at all. An argument over a warranty is likelier to come from running a diesel on petrol — so leave it switched off.
Adding two-stroke oil, then driving home
No. It belongs to a different fault from a bygone era, and petrol has diluted something no oil of that kind restores. Petrol remains in that tank later, whatever else goes in, and the pump gets no break from it.
Main dealers and petrol in a diesel
No. Our technicians drain and clean the vehicle wherever it is, so there is no need to bring it to a franchised dealer.
Standing next to it?
Keep the car shut off.
Driven it already? Then somewhere sensible, stop, turn off, and no restarting it afterwards. This is recoverable from a lot more often than drivers expect, and a still, cold vehicle is the best position to be in.
At the roadside, on the forecourt or at home — on-site fuel draining around Sion Hill and throughout Somerset.