Petrol in a Diesel Car in Eggbuckland: How Worried Should You Be?
Not started? Then less anxious than you likely feel. Until the ignition primes your pump, the starter cranks, or your vehicle is driven, petrol in a diesel tank just sits there and does no harm. Which makes the honest reply to the first Eggbuckland question — "have I wrecked it?" — normally no. Petrol in Diesel is who to call, with the engine left off, so it stays that way. Keep reading for three things: the effect petrol has inside a diesel motor, the clues of how far it has got, and the way to make sure you don't repeat it.
Inside your engine: what petrol in a diesel really does
On its way through a motor, diesel does two tasks. Lubricating comes before burning; it does both. Extremely fine tolerances go into your injectors and the high-pressure fuel pump, and just your diesel flowing through stops their surfaces grinding together.
Petrol does the first task poorly and the second not at all. The knocking comes from petrol being made not to ignite when compressed, which is exactly the reverse of what a diesel needs. On top of that it is thinner than diesel, it strips out the protection your system rests on, and any pump working on that blend is wearing itself.
Seen together, they make clear the shape the trouble has. It's movement that causes the damage, not contact. All a tank with petrol in it amounts to is a fuel issue. After your pump has been working on that petrol, a mechanical problem has started: anything shed by a pump that's wearing down is carried downstream to the fuel injectors with your fuel.
Four scenarios our technicians see around Eggbuckland: how serious is petrol in a diesel?
Fuelled up, never started. The best case there can be. The petrol is in the tank and just the tank, and the job is a drain and a flush where the car sits. This is the one scenario that can only truly take place at a forecourt, as anywhere else the car has been driven to get there.
Ignition on, or started for a moment. With the system primed, your lines and filter now hold petrol that came from the tank. Normally nothing more than draining, cleaning and sorting your filter, and so still straightforward.
Those few miles on the road meant your pump working on fuel diluted by petrol the whole way. Mileage is only half of it; how hard it was driven counts equally. Either way this work includes the tank, the lines, the fuel filter and clean fuel through the whole system. Short trips, such as the school run to Austin Farm Academy, are one matter. Very different once more: a run to Plymouth, under 3 miles away, or any miles on the M5, under 50 miles from Eggbuckland, where your engine kept running hard.
Driven on until it protested — clattering, smoke, an uneven idle, a dead throttle. What you are hearing is your motor signalling fuel that no longer acts like diesel. Leave it where it stops: a lay-by, a quiet street, the verge on Bearsdown Road. What goes first is still the fuel drain and flush, and that sorts it out, with lasting damage very rare if a car is pulled over soon.
Eggbuckland people and the petrol in a diesel stories they hear
It will not be fine. The myth: "Fill it the rest of the way with diesel and it will be." A bigger tank of the same mixture is all you get, because topping up takes out nothing. Percentage is not how a diesel fuel system tolerates petrol, however much that advice presumes.
If anything, the reverse is true. Myth: "A current diesel can cope with a bit of petrol." Smaller components and higher pressure are how a newer diesel runs its fuel, and that makes the protection matter more, not less.
Myth: "If it starts and drives, there's no harm done." This is the one that catches people. Any petrol motor fed diesel normally won't run, so the motorist stops and the harm stops with them. Feed petrol to a diesel and it generally starts, idles and drives away as if nothing has happened — all while its pump is wearing. Running is not the same as fine.
An old workaround for a different problem lies behind this one. Myth: "Add some two-stroke oil and drive it home." What petrol has weakened remains thinned, and that petrol stays in that tank regardless.
Once the motor has been run, part of the petrol sits in the fuel filter and your lines, not the tank — and your next start sends it straight back through your pump. So the myth "drain your tank yourself and you are sorted" does not hold. Emptying petrol into a can by the kerbside is also really dangerous.
Petrol in a diesel: how does it happen?
Carelessness is seldom the cause, and no one means to do it. One way only, since of the nozzles: the slimmer petrol one slides inside a diesel filler with almost no resistance, while the diesel one mostly will not fit a petrol vehicle. That's how the forecourt makes it straightforward.
Habit and your car falling out of step is when it takes place. Any motor that is new to you — hired, on loan as a courtesy car, or just bought. Two cars on one drive, one petrol, one diesel. A forecourt you know, but with its pumps laid out differently. A train to catch, and a hurried fill on the way to Plymouth. Precisely the moment it happens: after years of driving petrol, someone fills a diesel Renault Megane for the first time. Add rain, a phone call or a back seat full of children, and your hand repeats what it has always done.
Eggbuckland people: how to prevent petrol in a diesel next time
- Check the petrol pump, not the colour. In the UK unleaded handles are usually green and diesel black, yet not on each forecourt. The label is what matters.
- In a motor you do not know, look inside the flap over the filler or at the cap before your first fill: many vehicles print the fuel type there.
- One of each in the house? Label the key to your diesel — a coloured fob, a sticker — since meaning to remember is not enough.
- Before the nozzle leaves the pump the first time you fill a hired or new motor, say "diesel" out loud. Silly, perhaps, but it works.
- Thinking about something else is when this becomes an easy mistake to make, and so put your phone away and keep your mind on the pump.
- A misfuel inhibitor helps, up to a point. Some diesels come with a filler built to block a petrol nozzle, and add-on devices are available for vehicles without one. They are a backstop, not a reason to stop checking the petrol pump.
- The moment you notice, stop: less petrol in your tank makes a thinner mixture. What to do next doesn't change, though — still do not crank it.
Put petrol in a diesel in Eggbuckland already?
Then the order of things is brief. Starting it is out, and so is turning on the ignition. Yet on the forecourt, at Esso or anywhere else? Ask the staff to help you push the vehicle clear of the pump. Next, 0333 366 0103. We'll ask what went in, roughly how much, and if it's been run.
If it was AdBlue rather than petrol, say so. That's a different problem — corrosion and deposits and not lost lubrication — and it has its own page for Eggbuckland.
Why one petrol in a diesel job around Eggbuckland costs more than another
A fair single price does not exist here: four scenarios, four separate jobs. What moves the cost is mostly which of them you're in. Two things come after that: the petrol that got in as a proportion of what the tank takes, then the spot the car is in and whether our van can get to it safely.
Before any quote, not after, come three questions: your fuel that was put in, the amount, and whether it's run. That's why. Given the answers, there is a straight figure rather than a range.
About Eggbuckland and where it is
Eggbuckland is a suburban area located on the outskirts of Plymouth in Devon, sitting at an elevation of 38 metres above sea level. Eggbuckland is bordered by nearby places such as Efford, Higher Compton, and Hartley Vale, and is characterized by its predominantly semi-detached housing stock. Eggbuckland is situated close to the coast, with the city of Plymouth just 2.4 miles away, and is home to a population of approximately 5844 residents. Eggbuckland's proximity to the sea and its relatively low elevation give it a distinctive coastal setting.
Fuel drain cover across Devon, Eggbuckland included
Eggbuckland rests in the PL postcode area, and our teams that answer petrol in diesel jobs there work the spots around it as well — Efford, Higher Compton and Hartley Vale among them. Our engineers drain wherever your car is — your own driveway, a lay-by, a supermarket car park, a forecourt — so it does not have to come to us.
At the pump around Eggbuckland, right now?
In that case, you couldn't be in a better position. Ring, and keep it switched off.