Hook Street: Put Petrol in a Diesel Car?
With your tank still holding the fuel and the motor not yet started, almost every job requires only a drain, so keep the motor off. That outcome is determined in the minutes straight after filling up, and not by the amount that was put in. Across Hook Street and the rest of Gloucestershire, Petrol in Diesel drains the vehicle and flushes it where it sits, whether at a roadside, on a driveway or at a forecourt. Ring us and we will show you what follows after that before you do much else.
What to try now about petrol in a diesel
- Feed a petrol engine diesel and it will usually refuse to run at all, so the motorist stops there and so does the wear. Feed a diesel petrol and the engine starts, it ticks over, it moves off — fine for several miles. Most people have that backwards, which is the bit they get wrong about petrol in a diesel especially. So never crank it. And if started, don't believe it: the fuel system is wearing down whenever you drive.
- Turning the car's ignition on usually primes your system, and priming is what moves petrol out of the tank and into your pump and injectors. Those are the components diesel keeps protected on its way through, before it combusts. Petrol handles the burning and none of the protecting. Leave the car's ignition be.
- That guidance presumes a diesel fuel system handles petrol by percentage. It won't. Pour diesel on top and nothing at all is removed; what you get is a bigger tank of the same mixture. And no, the octane makes no difference — super unleaded is still petrol.
- Stay put if it's sensible to. Hazards on, motor off, keep it. Wherever you have stopped — the verge on Hook Street, anywhere — a tricky location for us beats a started diesel, and nothing is quicker for us to handle than a vehicle that never moved.
- Have your location ready before you dial. A postcode starting GL13 9 and whatever is closest to you with a sign on it is the difference between the van turning up and a van circling.
- Phone 0333 366 0103. Let us know what went in, about how much, and also if your car has fired. These three facts determine your whole job.
Pump-side draining for petrol in a diesel
Forecourts are where the work usually begins, and where a big chunk of it finishes. Still at Sea Fuels? Then that is normally where it happens. Station forecourts are normal for us, with the permission of the station.
Before the engine has run — the forecourt is the single spot this ends up halted. We can still deal with it where it stands, even away from the pumps. In a car park, on a driveway or in a lay-by, the vehicle has been started and moved there, and that sucked fuel through the filter and into the high-pressure fuel pump, all the way from your tank. None of that is a disaster, though the flush then has to reach past that tank to the fuel lines and the fuel filter, and the few seconds between reading the receipt and reaching for the key are what decide that.
Wheel the car out of the way if the attendants volunteer, and they normally will. The next motorist gets by the pump, and that is worth doing. Firing the car to shift four vehicle lengths is not.
Diesel Mercedes C-Class. Some litres of unleaded. Driven a couple of miles. Turned off now, at Lidl. That is the phone call our technicians hope for, because the real question underneath it is about volume through the pump instead of hours on the clock.
You'll be advised to move it clear of that gateway and sort it out later. Do not. On the zig-zags at Berkeley Primary School, a misfuelled Dacia Duster running on diesel is in the way, and that is all it is. Start it three more times being courteous and you have turned a tank into a fuel system: every start primes the lines, every prime draws more petrol past your filter toward the pump. Let them moan. Phone us.
Three answers determine most of the work: what went in, approximately how much, and whether the motor has run since. We ask for those answers when we get to your car in the car park by Boars Head Inn. After that the contaminated blend comes out of your tank, your lines are rinsed, and where your Audi A6 has a replaceable filter, it comes off. After fresh diesel is in and the fuel system primed, we fire it up and confirm it runs smoothly before you pull away.
Diesel has to be thick enough to seal the close-fitting components it runs through, and petrol dilutes it. That's the whole mechanism, and it accounts for the usual Westfield Brake call: a diesel Ford Kuga that travelled out there without fuss and came back down on power, lumpy at idle, perhaps smoking a little. A diesel injection system works hydraulically as well as chemically — it needs your fuel to hold pressure, not just to burn — so when the fuel thins, pressure that should build then stay built starts bleeding past clearances instead, and the motor gets a poorer, later, less even delivery than it was built around. None of that is the engine failing, which is the part worth hearing: it's your fuel no longer behaving like diesel, and it stops when your fuel is put right.
By now your tank is the least of it. Run a diesel and that blend goes into the filter, into the fuel lines, into the pump, into the rail — and none of that leaves with your tank contents. A diesel Volvo XC60 that made it near Berkeley Town Hall wants its circuit flushed. Emptying isn't the same thing.
Coverage near Hook Street
Hook Street is a coastal village, so our vans head out to it and to the villages near it on the usual runs: Lynch, Oakhunger, Berkeley, Abwell and Ham.
Not on this list? It tells you nothing. The places above are simply the nearest few, and the majority of towns across Gloucestershire have a page of their own somewhere on the site. Contact us to check instead of presuming — borders particularly, and wherever your phone may get wrong.
See this map for the patch shown here. Kerbside, forecourt, drive, car park: every bit of that is ground our technicians work on, and none of it requires your car to travel to us.
Hook Street: stuck wherever you stopped
The chance to pull in anywhere sensible does not come to everybody. A normal call for us and not an unusual one: noticed after setting off, finished up by the verge on Oakhunger Lane or at a lay-by with your hazards going.
Clear of the car if it is not sensible to sit inside, beside it if it is. Don't fire it up to reach a safer spot. It will go — a diesel on petrol normally obliges — and each mile of obliging draws that mix deeper into the system. We'll send the van to a tricky location without any trouble, and for the vehicle that is a lot better than driving on.
Petrol in a diesel, and the car has moved
under 5 miles from Hook Street, the local M5 is what matters now. It will usually get you onto it, and some way along, before you notice a thing. Then it's smoke, a rough idle and power draining away — not a tidy stop. Misfilled diesels seldom give you one of those.
Pull off at the first sensible exit, switch off, and never start the car to move it. Long drive? Anything close to the under 25 miles to the closest city and you should presume the lot — filter, pump, injectors, all of it got to by the contamination. Say that on the phone, because it alters what goes in our van.
Where is Hook Street?
Hook Street is a small village in Gloucestershire, situated near the coast in the South West region of England. Hook Street sits at a low elevation of around 15 metres, close to the nearby places of Lynch, Oakhunger, and Berkeley. Hook Street has a population of approximately 621 residents, with a predominance of semi-detached housing. Hook Street is located near the city of Gloucester, which is about 15 miles away.
Once we get to you around Hook Street: what we do
- The responses alter the work, which is why our engineers ask before quoting: what got in, how much of it, and if the engine has run.
- The polluted fuel is pulled out of that tank.
- Our technicians purge the lines and clean the fuel filter, and so what is left in the system isn't what created the trouble.
- Priming follows, once fresh diesel is in.
- We start the engine and make sure it runs correctly on fresh diesel.
From that point, you're ready to set off. All of it is done where your car is, so it never has to be taken to a garage, and when it has been noticed soon, lasting damage is very rare.
AdBlue in a diesel tank around Hook Street is a different matter
The problem isn't the same, though the first step is — never crank it — if what got in was AdBlue instead of petrol. Petrol thins your diesel and strips the lubrication the system relies on. AdBlue is urea in water, and in a diesel tank it causes rust and residue instead.
Both are ours. There's a separate Hook Street page for AdBlue removal, with the detail on it — including the reasons it usually turns out to be the worse of the two.
How much is a petrol-in-diesel drain in Hook Street?
We cannot put one number on this page frankly, since this job is not one job. What changes it:
- Started? Driven? Either answer counts more than anything else on this list.
- How much of the wrong fuel was put in, against how much that tank holds.
- AdBlue or petrol, whichever went in.
- Whether a technician can safely get to the car and work on it, which hinges on where your vehicle is.
Tell us what your vehicle is, how much went in, and whether your motor has run. A firm answer comes back, not a range. Not time-critical, with your car at home and going nowhere? Then works.
Petrol in diesel questions from Hook Street motorists
Can you do a fuel drain at a petrol station around Hook Street?
Yes — forecourts are where a big part of this takes place. Routinely, provided the site consents: Stone Garage, 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.
Is there a sensible amount of petrol in a diesel?
Ratio decides it instead of litres — and more than either, whether your motor has 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 mixture sucked through it.
Petrol in my diesel, and I have driven it
Stop sensibly. Off. Nothing after that. Driving is what shifts the issue from that tank into your pump and injectors — but it's fixable far more regularly than drivers assume, and the single most useful thing you can do now is not restart the vehicle.
Fuel drains and manufacturer warranties
No. Carried out correctly, emptying and purging is no change at all, and the warranty from your manufacturer is unaffected by it. A dispute over a warranty is likelier to come from running a diesel on petrol — so leave it switched off.
Two-stroke oil in that tank, and then home?
No. Two-stroke oil is an old remedy for a different issue and it does not put back what petrol has weakened. Petrol stays in that tank after that, whatever else goes in, and your pump gets no respite from it.
Do I need a main dealer for petrol in a diesel?
Not at all. Our technicians drain and clean the vehicle wherever it is, so there's no need to take it to a dealership.
Is your car still with you?
Do not turn the engine back on.
Turn it off somewhere sensible and leave it off, if you have already driven it. Cold and stationary, a motor is in the best place available — and people fear this a lot more than the recovery rate warrants.
Emptying misfuelled cars, Hook Street and the rest of Gloucestershire, wherever they are. Kerbside. Forecourt. Home.