Should You Worry? Petrol in a Diesel Car in Tindale Crescent
Likely less than you already are — provided no one has started the car. Petrol sitting in a diesel tank does nothing to your motor till something draws it through your fuel system — the ignition priming your pump, the starter, or driving itself. So the honest answer to the first query everyone in Tindale Crescent asks, "have I ruined it?", is generally no. Keep it like that: leave your motor off then phone Petrol in Diesel. Further down, you will find what petrol really does inside a diesel, how far it might have got, and how to stop it happening to you a second time.
Petrol in a diesel: what does it do to the motor?
Passing through an engine, diesel is doing two things at once. Lubricating comes before burning; it does both. Designed to very fine gaps, the fuel injectors and the pump depend on your diesel moving through them to stop their surfaces wearing against one another.
Petrol does the first job poorly and the second not at all. Being less viscous than diesel, petrol strips away the lubrication a fuel system needs, so a pump on the mixture to wear itself. It's also made to resist igniting under compression — the opposite of what a diesel needs — which is why you hear the rattling.
Taken together, they show what shape the problem has. Not contact but movement is what causes the damage. Petrol in a tank is a fuel problem. Once your pump has been running on that petrol, a mechanical problem has started: anything shed by a pump that's grinding travels downstream to your injectors with your fuel.
Tindale Crescent, petrol in a diesel: four situations, from mild to significant
Fuelled but not once started — as good as it gets. Just the tank has petrol in it, so the job is draining the tank and flushing the fuel system where your car sits. This situation can only really happen at a forecourt: anywhere else, the vehicle got there by being driven.
Ignition on, or started for a second. Petrol has left your tank and reached the fuel filter and the lines, because the system has been primed. Usually little more than emptying, purging and sorting your filter, and so still simple.
Those few miles on the road meant your pump running on fuel diluted by petrol the whole way. The work is the tank, the lines, your filter and clean fuel through the whole system, and how hard the car was driven counts as much as how far. Short trips, such as the school run to Woodhouse Primary Academy, are one thing. Driving as far as Durham, under 15 miles away, makes a very different task — as does any mileage on the A1(M), under 10 miles from Tindale Crescent, with the motor working hard the whole time.
Clattering, an uneven idle, smoke, a throttle gone soft: driven until it complained. The engine is telling you your fuel is no longer acting like diesel. Stop on the spot — on the verge on Gudmunsen Avenue, at the kerb, down a side road — and do not move it again. A car stopped quickly very seldom has long-term damage, because the fuel drain and the flush, which still come first, deal with it.
Petrol in a diesel stories Tindale Crescent people hear
False: topping up to full with diesel makes it fine. It does not. Nothing is removed when you top up — the tank simply carries more of the same blend. That advice supposes a diesel fuel system tolerates petrol by percentage. It does not.
Myth: a newer diesel copes with a bit of petrol. If anything, the reverse. A current diesel sends its fuel through finer parts at higher pressure, which makes the lubrication count more, not less.
This is the one that catches people. Myth: "If it starts and drives, there's no harm done." Feed diesel to a petrol engine and it usually will not run, and so the driver stops — and the damage stops with them. Nothing seems to have happened when a diesel fed petrol fires up, ticks over and drives away, as it usually will; meanwhile your pump grinds. Fine and running aren't the same thing.
"A drop of two-stroke oil and drive it home" — a myth, taken from a fix from years ago, for a separate issue. It doesn't put back what petrol has thinned, and the petrol is still inside that tank later on.
The next start draws petrol back round your pump from the lines and the filter, where some of it sits once your engine has run. That's why a DIY tank drain doesn't sort it — a myth. It is also genuinely risky to drain petrol into a can at the kerbside.
How it happens: petrol in a diesel
Carelessness is seldom the cause, and no one means to do it. A diesel nozzle mostly will not go into a petrol vehicle, but the narrower petrol nozzle goes into the filler of a diesel almost without resistance — so forecourts make this one mistake straightforward, and just in that direction.
When habit and your car stop matching, it occurs. Courtesy car, hire car, or a vehicle that's new. A household with one petrol and one diesel on the drive. A well-known forecourt with the pumps in a different order. A train to catch, and a rushed fill on the way to Bishop Auckland. The first fill-up in a diesel Renault Megane after years of driving petrol is exactly the moment it occurs. With rain, a call coming in, or a car full of children to deal with, the hand simply does what it always has.
Tindale Crescent drivers: how to avoid petrol in a diesel next time
- The label is what matters, and so check the pump rather than the colour: in the UK unleaded handles are normally green and diesel black, but not on each forecourt.
- Inspect your filler flap. Plenty of cars state the fuel type inside the flap or on the cap. Look at it on your first fill in a motor you do not know.
- A coloured fob or a sticker on your diesel's key achieves more than any amount of meaning to remember, in a house with one of each.
- Before the nozzle comes off the petrol pump the first time you fill a hired or new motor, say "diesel" aloud. Silly, perhaps, yet it works.
- Thinking about something else is when this becomes an easy mistake to make, and so put the phone away then keep your mind on the petrol pump.
- Add-on devices are available for cars without one, and some diesels come with a filler that won't take a petrol nozzle. Helpful — but a backstop only, never a reason to stop checking the label.
- Less petrol makes a weaker mixture, and so stop as soon as you notice — while remembering that your next step is unchanged. It is still not to start it.
Already put petrol in a diesel around Tindale Crescent?
The order of things is short, then. Starting it is out, and so is switching on the ignition. The staff on the forecourt — whether at Tesco 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 got in, about how much, and if it's been run.
Corrosion and deposits form the problem with AdBlue, whereas petrol brings lost lubrication. So if it was AdBlue, say so — and read its own Tindale Crescent page.
What makes one Tindale Crescent petrol in a diesel job cost more than the next
A fair single price doesn't exist here: four situations, four separate jobs. Which of them you're in is chiefly what moves your cost. The share matters next, meaning how much of the tank is petrol, and then the position of the vehicle and whether reaching it is safe for a van.
Three questions come first, before quoting, instead of after — what went in, how much, has it run — and this is the reason. With the answers, you get a straight figure instead of a range.
About Tindale Crescent, for a moment
Tindale Crescent is a suburban area located inland in County Durham, sitting at an elevation of 106 metres and approximately 10 miles from the city of Durham. Tindale Crescent forms part of a larger residential area, characterised by semi-detached housing, and is situated near other local places such as St Helen Auckland and Woodhouses. Tindale Crescent is also close to the wooded area of Etherley Dene, and is home to a population of around 3266 residents. Tindale Crescent is some 226 miles north of London, in the North East region of England.
Fuel drain cover across Durham, Tindale Crescent included
Petrol in diesel call-outs around Tindale Crescent — part of the DL postcode area — go to teams that also cover the places about it, St Helen Auckland, Woodhouses and Etherley Dene included. Our technicians drain wherever the vehicle is — your own driveway, a lay-by, a supermarket car park, a forecourt — so it never needs to come to us.
Tindale Crescent: still at the pump?
The best spot there is, then — that's where you are. Keep it off. Phone.