Should You Worry? Petrol in a Diesel Car in Stoneyhill
Probably less than you already are — provided no one has started the vehicle. Till your ignition primes the pump, the starter cranks, or the vehicle is driven, petrol in a diesel tank just rests there and does nothing. Which means the truthful reply to that first Stoneyhill question — "have I wrecked it?" — normally no. Leave the engine off then call Petrol in Diesel — that keeps it that way. Keep reading for three things: the effect petrol has inside a diesel motor, the clues of how far it has got, and ways to make sure you never do it again.
Your engine and petrol in a diesel: what goes on
Passing through an engine, diesel is doing two jobs at the same time. It protects to begin with, and only then does it burn. The high-pressure fuel pump and the injectors are made to very fine gaps, and your diesel passing through them is what keeps those surfaces from wearing down against each other.
Badly at the first, not at all at the second: that is petrol. Being less viscous than diesel, petrol strips out the lubrication a fuel system needs, so a pump on the mixture wearing itself. It's equally made to resist igniting under compression — the reverse of what a diesel needs — which is why you get the rattling.
Taken together, they show what shape the trouble has. Not contact but movement is what does the harm. All a tank with petrol in it amounts to is a fuel issue. Whatever a worn pump sheds goes on, borne by your fuel, into the fuel injectors further along, which is why a pump that has worked on that petrol is where a mechanical issue starts.
Petrol in a diesel in Stoneyhill: how serious is it? Four cases
The best case there can be: filled up, never started. The petrol is inside your tank and only the tank, and the task is a drain and a flush where the car sits. This is the one situation that can only truly take place at a forecourt, since anywhere else the car has been driven to get there.
Ignition on, or started for a second. Your system has been primed, so petrol has left that tank and reached the fuel filter and the fuel lines. Usually little more than clearing, rinsing and sorting your filter, so still straightforward.
Driven a few miles. Now your pump has spent these miles labouring on thinned fuel. Tank, lines, filter, then fresh fuel run through the entire circuit: that's this work, and the way your car was driven counts as much as the mileage. On the school run to the local primary school, the miles is small. Very different once more: a trip to Edinburgh, under 5 miles away, or any miles on the M8, under 10 miles from Stoneyhill, where the motor never stopped running hard.
Driven until it complained. Rattling, an uneven idle, smoke, a throttle that has gone soft. What you are hearing is your motor signalling fuel that no longer acts like diesel. Pull up wherever you are — the verge on Clayknowes Crescent, a lay-by, a side street — and leave the vehicle where it is. Long-term damage is very rare when a car is stopped early, and the fuel drain and flush-through that still go first deal with it.
Stoneyhill motorists and that petrol in a diesel stories they hear
"Top it up the rest of the way with diesel and it will be fine" — a myth. It won't. A bigger tank of the same mix is all it gives, since topping up takes out nothing. A diesel fuel system doesn't tolerate petrol by percentage in the way that guidance presumes.
If anything, the opposite holds. Myth: "A current diesel can cope with a bit of petrol." At higher pressure, through more precise components: that's how a newer diesel moves its fuel, and so the lubrication counts more, not less.
"It starts, it drives, so no harm done" — the myth that trips up most motorists than any other. Feed diesel to a petrol motor and it normally won't run, so the motorist stops — and the harm stops with them. A diesel fed petrol normally starts, ticks over and drives away as if nothing has happened, whilst the pump grinds. Fine and running aren't the same thing.
"A drop of two-stroke oil and drive it home" — a myth, borrowed from a fix from years ago, for a distinct fault. None of what petrol thinned gets put back by it — and later, that tank still holds that petrol.
"Drain it yourself and you are sorted" — a myth, because after it has been running some petrol lies in the filter and lines, ready to go right back through the pump at your next start. Also, a can of petrol drained by the roadside is truly dangerous.
Petrol in a diesel: how does it occur?
It's rarely carelessness, and nobody does it on purpose. The forecourt makes it simple: the petrol nozzle is the narrower of the two, and it slides into a diesel filler with almost no resistance, while a diesel nozzle generally won't go into a petrol vehicle at all. So the error runs one way.
When habit and the vehicle stop matching, it happens. Courtesy car, hire car, or a vehicle that is brand new. One petrol and one diesel on the driveway of the same household. A well-known forecourt with the pumps in a different order. A train to catch, and a rushed fill en route to Musselburgh. The first fill-up in a diesel Volkswagen Golf after years of driving petrol is precisely the moment it occurs. Throw in a back seat full of children, a phone call or rain, and the hand takes over.
How to prevent petrol in a diesel on your next fill-up around Stoneyhill
- The label is what counts, and so read the petrol pump rather than the colour: in the UK unleaded handles are normally green and diesel black, yet not on each forecourt.
- Inspect the filler flap. Plenty of motors state the fuel type inside the flap or on the cap. Look at it on your first fill in any motor you don't know.
- Good intentions do less than a sticker or a fob in a vivid colour on the diesel's key if a home has one of each. So label it.
- Before the nozzle comes off the pump the first time you fill a hired or new vehicle, say "diesel" aloud. Daft, perhaps, yet it works.
- Mistakes like this are straightforward to make while your mind is on something else, so the phone goes away.
- Up to a point, a misfuel inhibitor helps: some diesels have a filler built to block a petrol nozzle, and aftermarket devices are available for the remainder. Count it as a safety net, and keep reading the pump.
- Stop the moment you notice. Less petrol inside the tank means a thinner mixture. It doesn't change what to do next, which is still not to fire it up.
Put petrol in a diesel around Stoneyhill already?
Then, there is just a short order of things. Starting it is out, and so is switching on your ignition. If you are still on the forecourt — Shell or anywhere else — ask the attendants to help you push the vehicle clear of the petrol pump. What went in, roughly how much, and if it has run: tell us that when you phone 0333 366 0103.
Say so if it was AdBlue rather than petrol: it's a separate problem, with its own page for Stoneyhill, since AdBlue brings corrosion and deposits rather than lost lubrication.
What makes one Stoneyhill petrol in a diesel job cost more than the next
An honest single price does not exist here: four situations, four separate jobs. Which of them you're in is mostly what shifts your cost. Two things come after that: the petrol that got in as a share of what that tank takes, then the spot the vehicle is in and whether our van can reach it safely.
Three questions come first, before quoting, instead of after — what went in, how much, has it run — and this is the reason. Those replies turn a range into a straight figure.
About Stoneyhill itself
Stoneyhill is a suburban area located on the coast of East Lothian, sitting at an elevation of 28 metres and approximately 4.6 miles east of Edinburgh. Stoneyhill is characterized by its semi-detached housing and is situated near other local places such as Whitehill and Newhailes. Stoneyhill has a population of around 4784 residents and is part of the wider Edinburgh urban area. Stoneyhill is also relatively distant from London, at a distance of approximately 328.9 miles.
Across East Lothian and in Stoneyhill: fuel drain cover
The vans answering petrol in diesel jobs in Stoneyhill, in the EH postcode area, equally work the places around it, Whitehill, Stoneyhill Steading and Newhailes among them. The vehicle does not need to move to us: our technicians drain at a forecourt, in a supermarket car park, in a lay-by or on your own drive.
In Stoneyhill and still at the petrol pump?
Then, you could not be in a better position. Keep it off. Call.