Petrol in a Diesel Car in West Chinnock: How Worried Should You Be?
Likely less than you are now — as long as no one has started the car. Until the ignition primes the pump, your starter cranks, or your vehicle is driven, petrol in a diesel tank just rests there and does no harm. Which means the honest reply to the first West Chinnock question — "have I wrecked it?" — usually no. Leave your motor off and phone Petrol in Diesel — that keeps it that way. Keep reading for three things: the effect petrol has inside a diesel motor, the signs of how far it has spread, and the way to make sure you don't repeat it.
The engine and petrol in a diesel: what goes on
Two tasks fall to diesel on its journey through a motor. It burns, and before it combusts it protects. The high-pressure fuel pump and the injectors are built to very fine gaps, and the diesel passing through them is what keeps those surfaces from grinding against one another.
Poorly at the first, not at all at the second: that's petrol. Being less viscous than diesel, petrol strips out the lubrication a fuel system needs, so a pump running on that mixture to wear itself. It's equally made to resist igniting under compression — the opposite of what a diesel needs — which is where you hear the rattling.
Put those together and the shape of the problem is plain. The harm is done by movement, not by contact. Where the petrol is only inside the tank, it is a problem of fuel, nothing more. Whatever a worn pump sheds travels on, carried by the fuel, into the injectors downstream, which is why a pump that has been working on that petrol is where a mechanical fault starts.
Four scenarios we see in West Chinnock: how serious is petrol in a diesel?
Fuelled, and not started: no case is better. Being on a forecourt is what makes this possible: elsewhere, your car has been driven there to begin with. With that petrol kept inside the tank alone, it is emptied and flushed right where it stands, and nothing more is needed.
A moment's running, or merely your ignition on. Once primed, the fuel system has pulled petrol out of the tank up to the fuel filter and the fuel lines. Normally little more than draining, flushing and sorting your filter, and so still easy.
Some miles driven, and your pump has spent each of them labouring on thinned fuel. Distance is only half of it; how hard it was driven matters just as much. Either way the work runs to your tank, your lines, the fuel filter and fresh fuel through the whole circuit. Short trips, such as the school run to West Chinnock Church School, are one matter. Any mileage on the M5, under 15 miles from West Chinnock, means your engine working hard throughout, and a run to Wells, under 25 miles away, is a very different task as well.
Rattling, a ragged idle, smoke, a throttle gone soft: driven until it complained. That is your motor telling you its fuel no longer is acting like diesel. Pull up where you are — on the verge on Higher Street, at the kerb, down a side road — and don't move it. A vehicle stopped quickly very seldom has permanent damage, because the drain and the flush-through, which still come first, sort it out.
Myths West Chinnock drivers hear about petrol in a diesel
Myth: "Fill it the rest of the way with diesel and it will be fine." It will not. Nothing is removed by topping up — you're left with a bigger tank, still the same mixture. That guidance supposes a diesel fuel system handles petrol by percentage. It does not.
"Current diesels can handle a little petrol" — a myth, and nearer the reverse. Lubrication counts more on current diesels, not less, since their fuel runs through smaller parts at higher pressure.
"It starts, it drives, and so no harm done" — the myth that catches most motorists than any other. Any petrol engine fed diesel usually won't run, so the motorist stops and the damage stops with them. Nothing seems to have happened when a diesel fed petrol fires up, ticks over and drives away, which it usually will; meanwhile your pump grinds. A running engine does not mean fine.
Not so: a two-stroke additive makes it safe to drive home. It was an old fix, meant for another fault. None of what petrol weakened is put back by it — and afterwards, that tank still holds the petrol.
The next start draws petrol back round your pump out of the lines and the filter, where some of it ends up once your engine has run. That is why a DIY tank drain does not sort it — a myth. Draining petrol into a can by the roadside is also genuinely dangerous.
How does petrol in a diesel happen?
On purpose? Never. Through carelessness? Rarely, if ever. The petrol nozzle is the slimmer of the two and slips into a diesel filler with almost no resistance; a diesel nozzle mostly won't go into a petrol motor at all. The forecourt makes it easy, and the mistake runs one way.
Habit and the car getting out of step is when it occurs. A car that's new to you — hired, on loan as a courtesy car, or brand new. Households running one of each, petrol and diesel. A familiar forecourt with the pumps in a different order. A train to catch, and a hurried fill en route to Crewkerne. A new-to-you diesel Renault Megane, its first fuelling, and a driver used to petrol: exactly when it happens. Throw in rain, a phone call or a back seat full of kids, and your hand does what it has always done.
How to prevent petrol in a diesel at your next fill-up in West Chinnock
- Not every forecourt in the UK follows green for unleaded and black for diesel, even if most generally do. Check the petrol pump's label; the colour is just a clue.
- In a motor you don't know, look inside the flap over the filler or at the cap before the first fill: many cars state the fuel type there.
- One of each in the house? Mark the key to the diesel — a coloured fob, a sticker — since meaning to remember isn't enough.
- Say it before you lift it. On your first fill in a new or hired car, say "diesel" out loud before you take the nozzle off the petrol pump. It seems daft and it works.
- Tuck your phone away. This is an easy mistake to make while you are thinking about something else.
- A misfuel inhibitor helps, up to a point. Some diesels have a filler built to refuse a petrol nozzle, and add-on devices are available for vehicles without one. They are a backstop, not a reason to stop reading the pump.
- Stop as soon as you notice. Less petrol in that tank makes a thinner blend. It doesn't change what to do next, which is still not to start it.
Already put petrol in a diesel in West Chinnock?
Then, there is just a short order of things. Leave it unstarted, with the ignition off too. The staff on the forecourt — whether at Texaco itself or wherever you filled up — will usually help push it away from the petrol pump if you ask. Next, 0333 366 0103. We'll ask what went in, about how much, and if it has been run.
Corrosion and deposits are the trouble with AdBlue, whereas petrol brings lost lubrication. So if it was AdBlue, say so — and see its own West Chinnock page.
Why one petrol in a diesel task around West Chinnock costs more than another
The four situations above are four separate tasks, so no single price for this would be honest. Chiefly, your cost shifts with which one you're in. After that it's the share — how much petrol got in against how much that tank takes — and then where your car is and whether our van can reach it safely.
What got in, how much, and if it's run — three queries we ask before quoting, not after, for precisely that reason. A range turns into a straight figure when those answers are in.
About West Chinnock
West Chinnock is a village in Somerset, situated near the River Parrett and surrounded by rolling hills. West Chinnock has a low elevation of around 34 metres, and its riverside setting makes it prone to flooding. West Chinnock is characterized by its predominantly detached housing stock, with many homes scattered throughout the village. West Chinnock is located near several nearby places, including Snails Hill and Middle Chinnock.
Fuel drain cover around West Chinnock and across Somerset
Our teams answering petrol in diesel jobs in West Chinnock, in the TA postcode area, also work the locations around it, Snails Hill, Middle Chinnock and Chiselborough included. The vehicle does not need to come to us: we drain at a forecourt, in a supermarket car park, in a lay-by or on your own drive.
Still at the petrol pump in West Chinnock?
Then you're in the best position there can be. Keep it turned off, then ring.