Petrol in a Diesel Car in Hocombe: How Worried Should You Be?
If it hasn't been started, worry less than you likely are. Everyone in Hocombe starts with "have I wrecked it?", and the honest answer is normally no: petrol resting in that tank of a diesel remains harmless till priming, cranking or driving draws it into the system. To keep the vehicle that way, phone Petrol in Diesel then leave your motor alone. Keep reading for three things: the effect petrol has inside a diesel engine, the clues of how far it has got, and the way to make sure you don't do it again.
Petrol in a diesel: what does it do to your engine?
Passing through an engine, diesel is doing two jobs at the same time. Oiling comes before burning; it does both. Designed to very fine tolerances, your injectors and your pump rely on the diesel moving through them to stop their surfaces wearing against one another.
The second task petrol does not do at all, and the first it does badly. It's runnier than diesel and removes the lubrication your fuel system depends on, so a pump running on a petrol mix is a pump wearing itself. And petrol is designed to resist igniting under compression, which is the reverse of what a diesel needs from its fuel. That is where the clattering comes from.
The shape of the issue is clear once you put those together. Contact doesn't do the damage — circulation does. All a tank with petrol in it amounts to is a fuel issue. The beginning of a mechanical problem is a pump that has been working on that petrol — and whatever a worn pump sheds moves on with the fuel to the fuel injectors beyond it.
Four scenarios our technicians see around Hocombe: how bad is petrol in a diesel?
Fuelled but not once started — the best it gets. That petrol is in your tank and just the tank, and the task is a drain and a flush where the vehicle stands. This is the one scenario that can only really take place at a forecourt, as anywhere else your car has been driven to get there.
Started for a second, or just the ignition on. Your system has been bled, so petrol has left your tank and got to the filter and your lines. That is usually still a straightforward job — a drain, a flush, and the fuel filter dealt with.
A couple of miles driven, and the pump has spent each of them working on thinned fuel. The work is your tank, your lines, your filter and fresh fuel through the whole circuit, and how hard the vehicle was driven counts as much as how far. A school run to Hiltingbury Junior School is one thing. A run as far as Winchester, under 5 miles away, is a very different task. So is any distance on the M3, under a mile from Hocombe, where the engine has been running hard the whole time.
It complained, and only then stopped: smoke, clattering, a throttle gone soft, an idle gone uneven. The motor is telling you your fuel is no longer acting like diesel. Whether it's the verge on Coultas Road, a lay-by or a side road, stop there and leave it. A vehicle pulled over quickly very rarely has permanent damage, because the fuel drain and the flush-through, which still come first, sort it out.
Petrol in a diesel myths Hocombe drivers hear
It will not be fine. The myth: "Fill it the rest of the way with diesel and it will be." A fuller tank of the same mix is all you get, because topping up removes nothing. A diesel fuel system doesn't tolerate petrol by percentage in the way that guidance assumes.
Not so: a modern diesel copes with a bit of petrol. Rather, the reverse. At higher pressure, through more precise components: that is how a current diesel moves its fuel, and so the lubrication matters for more, not less.
One myth that catches drivers off guard: if it starts and drives, it must be unharmed. A petrol motor fed diesel generally will not run, so the driver stops and the damage stops with them. Whilst the pump grinds, a diesel fed petrol normally starts, idles and drives away as if nothing has happened. Running is not the same as fine.
"A drop of two-stroke oil and drive it home" — a myth, taken from a fix from years ago, for a different issue. What petrol has diluted stays weakened, and the petrol stays in your tank regardless.
"Drain it yourself and you are sorted" — a myth, since after it's been running some petrol lies in your filter and lines, waiting to go right back through the pump on your next start. It's also really dangerous to drain petrol into a can at the kerbside.
Petrol in a diesel: how does it occur?
It's seldom carelessness, and no one does it on purpose. One way only, since of the nozzles: the narrower petrol one slips inside a diesel filler with almost no resistance, whereas the diesel one generally will not fit a petrol vehicle. That is how the forecourt makes it simple.
When routine and your car stop matching, it takes place. Hire cars, courtesy cars, and motors that are new to you. Households running one of each, petrol and diesel. A forecourt you know, but with its pumps laid out differently. A train to catch, and a hurried fill on the way to Chandlers Ford. The first fill-up in a diesel Renault Clio after years of driving petrol is exactly the moment it occurs. Add a back seat full of kids, a phone call or rain, and habit takes over.
Next time you fill up around Hocombe: avoiding petrol in a diesel
- The label is what counts, so read the pump instead of the colour: in the UK unleaded handles are normally green and diesel black, but not on every forecourt.
- In a vehicle you do not know, look inside the flap over the filler or at the cap before the first fill: many motors state the fuel there.
- One of each in the household? Label your key to the diesel — a bright fob, a sticker — since intending to remember isn't enough.
- Say it before you lift it. On the first fill in a new or hired car, say "diesel" out loud before you lift the nozzle off the pump. It seems daft and it works.
- Tuck the phone away. This is an easy mistake to make whilst you're thinking about something else.
- Some diesels come with a filler designed to block a petrol nozzle, and devices you can add exist for cars without one. Such an inhibitor helps up to a point — as a safety net, not a reason to stop reading the pump.
- Spotting it halfway? Stop at once. A thinner mix follows from less petrol in your tank, yet the next step stays the same: do not crank it.
Already put petrol in a diesel in Hocombe?
Then the order of things is brief. Starting it is out, and so is turning on the ignition. The attendants on the forecourt — whether at Shell itself or wherever you filled up — will usually help roll it clear of the pump if you ask. Phone 0333 366 0103 next, with three facts — your fuel, the approximate amount, and if it's run.
AdBlue, not petrol? Then tell us. Corrosion and deposits, not lost protection, make it a separate fault — Hocombe has a page just for it.
Hocombe petrol in a diesel jobs: why one costs more than another
The four situations above are four separate tasks, so no single quote for this would be honest. What moves the cost is mostly which of them you are in. Two things follow that: the petrol that was put in as a share of what that tank takes, then the spot your car is in and whether a technician can reach it safely.
Three queries come first, before any quote, rather than after — what was put in, how much, has it run — and this is the reason. The replies change a range into a straight figure.
About Hocombe and where it is
Hocombe is a suburban area situated near Winchester in Hampshire, with a mix of detached housing and local amenities. Hocombe sits at an elevation of around 70 metres, in a gently rolling landscape of inland Hampshire. Hocombe is close to nearby places such as Hiltingbury and Allbrook, and is within commuting distance of London. Hocombe has a population of approximately 1691 residents.
Hocombe and Hampshire: where our fuel drain cover reaches
Hiltingbury, Allbrook and Cuckoo Bushes are among the places around Hocombe that the same vans work, answering petrol in diesel call-outs across Hocombe's SO postcode area. The vehicle does not need to come to us: our engineers drain on a forecourt, in a supermarket car park, in a lay-by or on your own drive.
In Hocombe and still at the pump?
Then you're in the best place there can be. Keep the vehicle turned off, then ring.