Should You Worry? Petrol in a Diesel Car in Pevensey Bay
Provided it has not been started, worry less than you probably are. Till your ignition primes your pump, the starter cranks, or the vehicle is driven, petrol in a diesel tank simply rests there and does nothing. Which makes the truthful reply to the first Pevensey Bay question — "have I wrecked it?" — normally no. Leave the engine off then ring Petrol in Diesel — that keeps it that way. Read on for three things: the effect petrol has inside a diesel motor, the clues of how far it has spread, and ways to make sure you never repeat it.
Petrol in a diesel: what does it do to the engine?
Two tasks fall to diesel on its journey round a motor. Before it combusts, it lubricates — and then it burns. Built to extremely fine gaps, your injectors and your pump rely on your diesel moving through them to stop their surfaces wearing against one another.
Petrol does the first task poorly and the second not at all. A pump working on a petrol blend is wearing itself out, since petrol is thinner than diesel and takes away the protection the fuel system depends on. Petrol is also made to resist igniting under compression — the reverse of what a diesel wants from its fuel — and that is where any clattering comes.
The shape of the trouble is plain when you put those together. The harm is done by movement, not by contact. Any tank with petrol in it is a fuel fault. A pump that has been running on that petrol is the start of a mechanical one, and whatever a worn pump sheds travels on with your fuel to your injectors further on.
How serious is petrol in a diesel? Four scenarios our engineers see around Pevensey Bay
Filled up, and not started: no case is better. Being on a forecourt is what makes this possible: elsewhere, the vehicle has been driven there to begin with. With that petrol kept in the tank alone, it's emptied and rinsed right where it stands, and nothing more is needed.
A brief spell of running, or just your ignition on. The system has been primed, and so petrol has left the tank and got to the filter and the lines. Drain, flush, deal with the filter: still normally straightforward.
Those few miles driven were the pump running on fuel diluted by petrol the whole way. Tank, lines, filter, then fresh fuel run through the entire system: that's this work, and the way the car was driven counts as much as the distance. Short trips, such as the school run to Pevensey and Westham CofE Primary School, are one matter. Getting as far as Brighton and Hove, under 25 miles away, makes a very different job — as does any mileage on the M23, under 50 miles from Pevensey Bay, with your engine working hard the whole time.
Driven on until it complained — clattering, smoke, a lumpy idle, a dead throttle. The motor is telling you your fuel is no longer behaving like diesel. Pull up wherever you are — the verge on A259, a lay-by, a side street — then leave the vehicle there. The drain and flush still go first, and they take care of it: when a vehicle is pulled over quickly, lasting damage is very uncommon.
What Pevensey Bay people get told about petrol in a diesel — and the stories in it
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 mix is all you get, since topping up removes nothing. A diesel fuel system doesn't accept petrol by percentage in the way that advice presumes.
Myth: a newer diesel copes with a bit of petrol. If anything, the reverse. A modern diesel sends its fuel through more precise parts at higher pressure, which makes the lubrication count more, not less.
Myth: "If it starts and drives, there is no damage done." This is the one that catches motorists. Feed diesel to a petrol engine and it normally will not run, so the motorist stops — and the harm stops with them. While the pump grinds, a diesel fed petrol normally starts, ticks over and drives away as though nothing has happened. Fine and running aren't the same at all.
Not so: a two-stroke additive makes it safe to drive home. It was an old fix, supposed for another problem. It doesn't put back what petrol has diluted, and that petrol is still in that tank afterwards.
Myth: "Drain that tank yourself and you are sorted." After the engine has run, some of the petrol is no longer in that tank: it is in your filter and the lines, and it goes right back through the pump on your next start. On top of that, petrol cleared into a can by the road is genuinely hazardous.
Why petrol in a diesel happens so easily
It is seldom carelessness, and no one does it on purpose. The petrol nozzle is the slimmer of the two and slips into a diesel filler with almost no resistance; a diesel nozzle generally won't go into a petrol vehicle at all. The forecourt makes it simple, and the slip runs one way.
When habit and your car stop matching, it takes place. A new motor, a hire car or a courtesy car. One petrol and one diesel on the driveway of the same household. A well-known forecourt with the pumps in a different order. Filling up in a hurry on the way to the nearest station, with a train to catch. The first fill-up in a diesel Renault Clio after years of driving petrol is precisely the moment it takes place. With rain, a call coming in, or a car full of children to deal with, your hand just does what it always has.
Preventing petrol in a diesel next time you fill up around Pevensey Bay
- Read the pump, not the colour. In the UK unleaded handles are normally green and diesel black, yet not on each forecourt. The label is what matters.
- The first fill in an unfamiliar vehicle is the time to check your filler flap — on it, or on the cap, plenty of motors state which fuel they take.
- Good intentions count for less than a sticker or a fob in a bright colour on your diesel's key when a household has one of each. So mark it.
- Before the nozzle leaves the petrol pump the first time you fuel a hired or new motor, say "diesel" out loud. Silly, perhaps, yet it does the trick.
- Thinking about something else is when this becomes an easy mistake to make, so tuck the phone away and keep your mind on the petrol pump.
- Some diesels have a filler designed to refuse a petrol nozzle, and devices you can add exist for vehicles without one. Such an inhibitor helps up to a point — as a backstop, not a reason to stop checking the petrol pump.
- Spotting it halfway? Stop there and then. A thinner mix follows from less petrol inside that tank, but the next stage stays the same: do not crank it.
Already put petrol in a diesel in Pevensey Bay?
Then the order of things is short. Leave it unstarted, with the ignition off too. If you're still on the forecourt — BP or anywhere else — ask the attendants to help you roll it clear of the pump. Call 0333 366 0103 next, with three facts — your fuel, the rough volume, and whether it's run.
If it was AdBlue and not petrol, say so. That's a separate fault — corrosion and deposits and not lost protection — and it has its own page for Pevensey Bay.
One petrol in a diesel task around Pevensey Bay costs more than another. Why?
There's no honest single price for this, because the four scenarios above are four separate jobs. The scenario itself does most of the work of moving your cost. The ratio matters next, meaning how much of that tank is petrol, followed by the position of your car and whether getting to it is safe for our van.
What was put in, how much, and whether it has run — three questions our engineers ask before pricing, not after, for exactly that reason. Their replies are what change a range into one firm number.
About Pevensey Bay itself
Pevensey Bay is a small coastal village in East Sussex, situated on the edge of the Pevensey Levels and close to the historic town of Pevensey. Pevensey Bay has a low elevation of around 4 metres above sea level, making it a popular spot for seaside activities. Pevensey Bay is characterized by its semi-detached housing and quiet residential atmosphere, with nearby beaches and attractions drawing visitors from surrounding areas like Beachlands and Westham.
Fuel drain cover around Pevensey Bay and across East Sussex
Petrol in diesel call-outs around Pevensey Bay — part of the BN postcode area — go to teams that likewise cover the locations around it, Beachlands, Pevensey and Westham included. A forecourt, a supermarket car park, a lay-by or your own driveway are all locations our engineers drain, and your car doesn't need to come to us.
Pevensey Bay: still at the petrol pump?
Then you are in the best spot there is. Phone, and keep it switched off.