Rowner: Put Petrol in a Diesel Car?
With the tank still carrying the petrol and the motor not yet run, nearly every job needs only a drain, so keep the motor off. That outcome is determined in the minutes right after filling up, rather than by the amount that was put in. Throughout Rowner and the rest of Hampshire, Petrol in Diesel drains the car and cleans it where it stands, whether at a roadside, on a driveway or at a forecourt. One call our way will be enough: our team shall tell you what comes next. Make that right away.
Petrol in a diesel: what to do first
- Never start it. Turned on anyway? Then don't trust it. Diesel in a petrol motor normally cannot run, and so the person stops and the harm ends with them. Petrol in a diesel? It starts. It ticks over. It pulls away happily, for a couple of miles. Drivers get that reversed. It's not all right — that fuel system is grinding every mile you cover.
- Switching the ignition on commonly primes your system, and priming is what moves petrol out of that tank then into your pump and injectors. Those are the components diesel keeps lubricated on its way through, before it ignites. Petrol handles the burning and none of the oiling. Leave your ignition off.
- Do not thin it. Diesel put on top removes nothing, so all you get is more of what was already there, since percentage is not how a diesel fuel system accepts petrol. Super unleaded? Still petrol. The grade makes no difference.
- A vehicle that hasn't shifted is the simplest one to sort out, so remain where you are if you reasonably can. Pulled up on the verge on Gorselands Way? Hazards on, and keep the vehicle there. A tricky place suits us better than a started diesel.
- Know where you are before calling. A postcode that starts PO13 9, and the name of whatever is closest to you. Otherwise the van circles instead of turning up.
- What went in, roughly how much, and whether the motor has run — the three details settle the entire job. Call 0333 366 0103 then tell us.
Petrol in a diesel Nissan Qashqai, sat outside Portsmouth Harbour since first thing? The day has lost you nothing — fuel in a tank is dormant. It was the journey in that sucked thinned diesel through your pump. Call us before you move the vehicle.
If you've put petrol in your diesel Audi A4 in Rowner and you're now sat outside Lidl with a boot full of shopping, phone us. Do not crank it again to leave the space. Our technicians will get to you, clear your tank, purge those fuel lines then put clean diesel in so you can drive away. A mile or so at light throttle uses very little fuel, which is why these are often the simple cases.
How far, and how hard? The second of those matters more than the first, and so have both prepared. The Peugeot 3008 will have seemed perfectly normal on the way back from Grange Junior School — they all do, and that's the catch. Diesel into a petrol motor generally will not run at all: the driver stops, and so does the damage. Petrol into a diesel starts, ticks over, drives off like nothing happened, while your high-pressure pump gets on with its work minus the protection your fuel should be giving it. No warning appears, because behind the wheel nothing looks wrong.
A diesel Mercedes E-Class sitting in the car park by The Green Dragon carrying a tank full of petrol in it is a simple job, right up till someone takes it home. Leave the vehicle overnight then phone us in the morning. Nothing degrades whilst it sits. What we'll ask is if that drive there was brief and cold, since that is where petrol is slowest to burn correctly — and what won't burn can slip past the rings and into the sump.
Diesel has to be thick enough to seal the tightly fitted parts it passes through, and petrol thins it. That is the whole process, and it explains the normal Rowner Copse call: a diesel BMW 1 Series that drove out there without fuss and came back down on power, uneven at idle, possibly smoking a little. A diesel injection system works hydraulically as well as chemically — it requires the fuel to hold pressure, not just to burn — so when the fuel dilutes, pressure that should build and stay built starts escaping past gaps instead, and the engine gets a poorer, later, less even delivery than it was engineered round. No part of that is the motor failing, which is the part worth hearing: it's your fuel no longer acting like diesel, and it stops when the fuel is put right.
Removing petrol from a diesel at the forecourt
The work kicks off at a pump, typically. Regularly the job finishes on site as well. The drain typically happens there and then. Still on the forecourt at BP? Given the site's agreement, that is a place our engineers work, and often.
Nowhere except a forecourt can the mistake be spotted with the engine still unstarted. Anywhere else — a car park, a drive, a lay-by — the car was fired up and moved to get there, which means fuel was pulled from your tank, through the filter then into the high-pressure fuel pump. That is not a calamity, and our technicians can still put it right where it stands. It does mean the fuel lines and the fuel filter need cleaning as well as your tank, and that is settled by the few seconds between checking the receipt and going for the key.
Attendants will usually help out pushing it clear of the pump, which lets the next motorist get through. Welcome the assistance. Four car lengths isn't worth a restart.
Service around Rowner
These same rounds bring us to Brockhurst, Bedenham, Anns Hill, Elson and Bridgemary as well as Rowner, which is a residential suburb.
If yours isn't on the list it does not mean we do not come — there are pages for most places across Hampshire, and the ones named above are just the immediate neighbours. Near the boundary, or anywhere a satnav can't find? Phone to enquire instead of assuming.
That map is the ground the page covers. Roadside, forecourt, driveway, car park: all of that is territory we serve, and none of it asks your car to come to us.
Stranded by the kerbside in Rowner
Not everyone finds a decent spot to pull in. Hazards flashing at a lay-by somewhere, or stopped on the verge on Charden Road because you realised after setting off — our engineers take that call often enough that it's the usual kind.
Whether you wait by the car or step away from it hangs on whether being nearby feels wise. Never restart it to reach a better location. It will go — a diesel on petrol normally obliges — and each mile of obliging drags that blend deeper into the system. However inconvenient the spot, it is no problem for us to come to it, and that is much better for the vehicle than carrying on.
Petrol in a diesel, and the motor has travelled
Here is where the local M27 comes in, under 5 miles from Rowner. A loss of power, a lumpy idle, smoke: those are the symptoms when they come, instead of a neat stop — and a misfuelled diesel will frequently take you onto it and some way along before anything feels wrong at all.
The next safe junction is the one to take. Turn off there, then leave the restarting alone. Long trip? Anything near the under 5 miles to the closest city and you should suppose the lot — filter, pump, injectors, all of it reached by the mixture. Say that on the call, as it affects what goes in our van.
Rowner itself
Rowner is a coastal suburban area in Hampshire, situated near the city of Portsmouth and close to the neighbouring areas of Brockhurst and Bedenham. Rowner lies at a low elevation of around 8 metres above sea level, reflecting its proximity to the sea. Rowner has a mix of housing types, but terraced housing is predominant in the area. Rowner is located approximately 65.9 miles from London, making it a commuter option for some residents.
Our call-out in Rowner, step by step
- We ask first, price after. What got in? How much? Has the motor run? Those replies alter what the work really is.
- The tank is cleared of it.
- Lines flushed, filter cleared. Whatever remains afterwards isn't the thing that caused the problem.
- Our engineers pour new diesel in and bleed the system.
- Our engineers fire it up and check it runs properly on clean diesel.
The vehicle is then ready for you to drive away. There is no need to go to a garage at any point, since the work is all done where the vehicle is, and when it's noticed early, lasting damage is very rare.
Rowner AdBlue removal is a separate matter
The issue isn't the same, though the first rule is — don't fire it up — if what got in was AdBlue rather than petrol. Thinned diesel, and no protection left for the system that relies on it. That is petrol. AdBlue? Urea dissolved in water. Tip that in with your diesel and you get rust instead, plus residue.
Usually the more serious of the two, AdBlue — and the details sits on its own Rowner page. Both are ours to deal with.
Paying for a petrol-in-diesel fuel drain around Rowner
What moves the figure is set out below, because this job is not one job and we can't truthfully put a single figure on this page.
- Has it been started or driven? Nothing else counts for as much.
- The tank's capacity, set against how much of the wrong fuel went into it.
- AdBlue or unleaded, whichever went in.
- Where is it? And can a van reach it and work there safely?
Tell us your vehicle, the quantity and whether it has run, and you will get a straight answer instead of a range. For the vehicle at home that's going nowhere and isn't time-critical, is fine too.
Things we get about petrol in diesel in Rowner
At a petrol station in Rowner, can you do a fuel drain there?
A fair portion of this work happens there, so yes. Consent from the site is the condition. Given that, a forecourt like Harvest Energy is somewhere we are regularly, along with the rest of them locally — so name yours on the phone and you will hear if working there is possible.
How much petrol is too much for a diesel?
Proportion decides it instead of litres — and more than either, whether your motor has run. Five litres into an almost dry tank isn't five into a full one, no. But both land on the same query in the end: has that mixture been pulled right through, or has it not?
Petrol in my diesel, and I have driven the car
Somewhere sensible, then stop, then turn off and keep it off. Not restarting it is the single most valuable thing available to you now. Driving does shift the problem out of your tank and into the pump and injectors, yes, and it stays fixable a lot more frequently than drivers expect.
Fuel drains and manufacturer warranties
It's not a modification, so a drain and flush carried out properly doesn't void a manufacturer's warranty. 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
Two-stroke oil solves a distinct issue, and an old one at that. Nothing it does puts back what petrol diluted. No. Your pump still has to cope with it, since the tank still has petrol in it later.
Does petrol in a diesel have to go to a main dealer?
Not at all. Our technicians drain and flush your car wherever it is, so there's no need to take it to a dealership.
You, and the car, still together?
Don't switch your engine back on.
Already driven it? Then pull in somewhere sensible, switch off, then let the car stay that way. A parked, cold vehicle is the best place to be in, and this is recoverable from much more regularly than motorists fear.
Throughout Hampshire and around Rowner: mobile fuel draining, at home or on the forecourt or at the roadside.