Dorking: Put Petrol in a Diesel Car?
With your tank still carrying the fuel and the motor not yet turned over, almost every job needs only a drain, so keep the motor off. That result is decided in the minutes immediately after filling up, rather than by the amount that got in. Throughout Dorking and the remainder of Surrey, Petrol in Diesel drains the car and flushes it where it stands, whether at a roadside, on a driveway or at a forecourt. Phone before all else begins, and you will hear what comes next.
What to try now about petrol in a diesel
- Feed a petrol engine diesel and it will typically refuse to run at all, so the person stops there and so does the harm. Give a diesel petrol and the car starts, it ticks over, it drives off — all right for a few miles. People have that reversed, which is the bit they get wrong about petrol in a diesel in particular. So never start the car. And once started, never rely on it: your fuel system is wearing whenever you drive.
- Switching your ignition on frequently primes the system, and priming is what pulls petrol out of the tank and into the pump and injectors. Those are the parts diesel keeps oiled on its way through, before it ignites. Petrol manages the burning and none of the protecting. Leave your ignition be.
- Don't tip diesel on top to dilute it. A diesel fuel system doesn't tolerate petrol by percentage the way that guidance implies, and topping up clears nothing — it simply gives you a fuller tank of the same mixture. The grade makes no difference either: super unleaded is simply petrol.
- Remain where you are if you sensibly can. A vehicle that has never shifted is the quickest one to handle, and we'd much rather travel to a tricky place than have it started. If you are parked on the verge on Ansell Road, switch the hazards on and keep the car there.
- Before you phone, gather your whereabouts. Anything nearest to you with a name on it, plus a postcode that starts RH4 1 — that's what determines whether the van shows up or circles.
- Dial 0333 366 0103. Expect three queries — what went in, roughly how much, plus whether the motor has been turned over. The replies shape whatever comes after.
Pump-side drains for petrol in a diesel
The work starts at a pump, generally. Frequently it ends there as well. We operate on petrol station forecourts all the time, with the station's consent, so if you are still at BP that is typically where the drain happens.
Before your engine has started — a forecourt is the one spot this gets halted. Our technicians can still sort it out where it stands, even away from the pumps. In a car park, on a driveway or in a lay-by, your car has been switched on and driven there, and that drew fuel through your filter then into your high-pressure pump, all the way from that tank. None of that is a calamity, though the flush then has to reach past that tank to the lines and your filter, and the few seconds between reading your receipt and reaching for the key are what determine that.
Push it out of the way if the attendants volunteer, and they usually will. The next customer gets through the pump, and that's worth doing. Shifting it four lengths does not merit firing the motor.
Dorking and the towns next to it
As a riverside town, Dorking has a steady visit, while the places close by come along on the same journey: Rose Hill and Deepdene, Tower Hill and Pixham, Stonebridge.
Our technicians do come. The names above are merely the immediate neighbours, and a page exists for the majority of places in Surrey, and so an absence from the list isn't an absence from the coverage. Ring us and enquire instead of presuming, above all when you are on a boundary or somewhere your satnav gets wrong.
That map marks the ground the page covers. Our technicians work by the road, on forecourts, on driveways and in car parks throughout all of it, and your car never needs to come to us.
A diesel pump supplies fuel on demand, and a hurried morning drive needs plenty — so three miles in your BMW 3 Series feels like nothing and isn't. Twenty to nine at the gates of St Paul's CofE Primary School, already late, a receipt in your hand saying unleaded: hazards on, ignition off, phone.
Chance the journey home from The White Horse? No. It will fire up and it will move off quite happily, which is the problem — a diesel on a weakened tank behaves typically whilst wearing down the parts the fuel should be lubricating. Park the Nissan Qashqai and call us.
Standing still, it gets no worse. Your pump is not turning, so whatever happened on the way to Cotmandene in that diesel Ford Focus is finished happening. Time is yours. Just don't take it home on the motor to find more of that.
Draining the Mercedes C-Class, changing the filter where there is a workable one, cleaning your lines, putting clean fuel through the entire circuit: that is this job, and it's shaped by the worst of it waiting in the lines instead of in the tank by this point. Three things help when you call from near Dorking Library — which side the filler is on, whether our van can pull up next to without blocking the road, and whether the engine has run since you filled up. On-street is the most common spot we work, and so the location itself is hardly ever the trouble. A tight parking space beats a motor driven somewhere more convenient.
Somebody certain will tell you to drain the car then put fresh diesel in. Half true, that. Try it on a diesel Volvo XC60 by Marks & Spencer and the engine will start — which is precisely why it sounds like sense. Here's the catch: there's petrol left in your filter and the feed lines, and the first thing the motor does is draw it back through the pump once more. Emptying a tank achieves nothing about fuel that already left your tank. Call us. The system gets rinsed, the filter comes off where there is one worth removing, and that is what separates a repaired car from one that only starts.
Kerbside breakdowns in Dorking
Not everyone gets the chance to pull over somewhere safe. Hazards flashing at a lay-by somewhere, or pulled onto the verge of High Street because you worked it out after setting off — our engineers take that call regularly enough that it is the ordinary kind.
Clear of your car while it's not wise to sit inside, by it when it is. Never restart it to reach a nicer place. It'll go — a diesel on petrol normally obliges — and each mile of obliging pulls that mixture deeper into your fuel system. However tricky the spot, it is no bother for us to get to it, and that is much better for the car than pressing on.
Petrol in a diesel, and the car has gone
under 5 miles out of Dorking, the M25 is what counts here. Some distance along, and onto it in the first place: a misfuelled diesel will usually do both before anything feels wrong. What you get then is seldom a tidy stop. Power ebbs away, your idle goes uneven, and there may be some smoke.
Take the first exit that's safe, stop there, and don't start the vehicle to reposition. Assume the worst of it on a long run. Anything close to the under 25 miles to the closest city, and the contamination has been through the fuel filter, through the pump, through the fuel injectors. Mention it when you ring. What we bring differs.
Dorking itself
Dorking is a town in Surrey, situated on the River Mole, with a mix of old and new buildings, including a high proportion of flats. Dorking sits at an elevation of 66 metres, near the North Downs, and is surrounded by nearby places such as Rose Hill, Deepdene, and Tower Hill. Dorking is located approximately 20.9 miles from London, making it a commuter town with a population of around 12,438 residents. Dorking has a riverside setting, which has influenced its development over time.
The job in Dorking, step by step
- We ask first, quote after. What got in? How much? Has your engine run? Those answers change what the work actually is.
- Your tank gets emptied of everything.
- Fuel lines are purged through and the filter cleared, leaving nothing in your system that started any of this.
- Priming follows, once fresh diesel is in.
- Our engineers start the car and check it runs correctly on fresh diesel.
At that point it's ready to pull away. There's no need to go to a garage at any stage, as the work is all done where the vehicle is, and when it's caught early, lasting damage is very rare.
AdBlue in a diesel tank in Dorking is a separate job
Do not start it: that opening step applies whether what went in was AdBlue or petrol. What differs is the issue itself. Weakened diesel, and no lubrication left for your fuel system that depends on it. That is petrol. AdBlue? Urea dissolved in water. Pour that in with the diesel and you get corrosion instead, plus residue.
Our engineers handle both, and AdBlue removal in Dorking has its own page with the details — including why it's frequently the more serious of the two.
Dorking costs for a petrol-in-diesel drain
What moves the price is laid out below, as the job is not one job and we can't truthfully put a single number on this page.
- Whether the engine has been started or driven. This is the big one.
- How much of the wrong fuel went in, set against how much your tank holds.
- The kind of liquid in the tank, unleaded or AdBlue.
- Whether our van can safely reach the vehicle and work on it, which depends on where your vehicle is.
The vehicle, the amount, whether it has run — give us those and the answer comes back firm rather than as a range. For the vehicle at home that is going nowhere and isn't urgent, works too.
Petrol in diesel: common questions around Dorking
Can you do a fuel drain at a petrol station in Dorking?
Much of what our technicians do gets done nowhere else. So yes. Our technicians work at Esso and the other forecourts locally routinely, with the site's consent — tell us which one you're at when you phone and we'll tell you if our technicians can work there.
A few litres of petrol in a diesel — too much?
Litres are not the yardstick. Proportion is, and a lot more than either, it counts if anything has been run. Five litres into an almost dry tank is not five into a full one, no. But both land on the same question in the end: has that mixture been pulled right through, or has it not?
I drove the car after putting petrol in my diesel. Now what?
Somewhere safe, then stop, then turn off and leave it off. Driving shifts the problem along — out of your tank, into the pump and injectors. Motorists fear it a good deal more than the recovery rate warrants, mind. The one really helpful thing left to you is not restarting the car.
Fuel drains and manufacturer warranties
A manufacturer's warranty survives a drain then flush done to a proper standard, which is no alteration at all. Running a diesel on petrol is the thing more likely to cause an argument with one, which is another reason to leave the vehicle switched off.
Adding two-stroke oil, then driving home
No. Two-stroke oil is an old remedy for a different fault and it does not put back what petrol has thinned. Petrol stays in that tank later on, whatever else goes in, and the pump gets no break from it.
Do I need a main dealer for petrol in a diesel?
Wherever your car is, our engineers drain and flush it there, so a drive to the main dealer doesn't come into it.
Is the car still with you?
Do not turn it on again.
If you have already driven it, pull over somewhere sensible, switch it off and leave it off. Cold and stationary, a vehicle is in the best place available — and people fear this far more than the recovery rate warrants.
At the roadside, on the forecourt or at home — call-out fuel draining around Dorking and throughout Surrey.