Petrol in a Diesel Car in Dines Green: How Worried Should You Be?
Likely less than you already are — provided no one has started the car. Till your ignition primes the pump, the starter cranks, or the car is driven, petrol in a diesel tank simply sits there and does nothing. Which makes the honest reply to the first Dines Green question — "have I wrecked it?" — usually no. Keep it like that: leave your engine off and phone Petrol in Diesel. Read on for three things: the effect petrol has inside a diesel engine, the signs of how far it has spread, 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 things at the same time. Lubricating comes before burning; it does both. Very fine tolerances are built into your injectors and the high-pressure fuel pump, and only your diesel flowing through keeps those surfaces from grinding together.
Of those two jobs, petrol manages the first poorly and the second never. Being less viscous than diesel, petrol strips away the lubrication a fuel system needs, so a pump running on the blend wearing itself. It is also made to resist igniting under compression — the opposite of what a diesel needs — which is where you hear the clattering.
Combined, those make the shape of the problem plain. Contact does not do the harm — movement does. All a tank with petrol in it amounts to is a fuel problem. Whatever a worn pump sheds travels on, carried by your fuel, into the fuel injectors downstream, which is why a pump that has been working on the petrol is where a mechanical issue starts.
How serious is petrol in a diesel? Four situations our engineers see in Dines Green
The best case there can be: filled up, not once started. The petrol is in your tank and only your tank, and the job is a drain and a flush where the vehicle stands. This is the one situation that can only really happen at a forecourt, as anywhere else the vehicle has been driven to get there.
Ignition on, or started for a moment. Petrol has left the tank and reached the filter and the lines, since your system has been bled. Drain, flush, deal with the filter: still normally straightforward.
Your pump now worked a couple of miles on diluted fuel — that is what driving the vehicle meant. Tank, lines, filter, then fresh fuel run through the whole system: that's the work, and the way the vehicle was driven matters as much as the mileage. A school run to Honeywell Primary School is one thing. Very different once more: a trip to Worcester, under 3 miles away, or some mileage on the M5, under 5 miles from Dines Green, where the engine kept running hard.
Knocking, an uneven idle, smoke, a throttle gone soft: driven until it complained. The fuel isn't behaving like diesel any more, and your motor is telling you. Pull up on the spot — on the verge on Burleigh Road, at the kerb, down a side road — and do not move it again. A car stopped soon very seldom has long-term damage, since the drain and the flush-through, which still go first, take care of it.
Stories Dines Green drivers hear about petrol in a diesel
False: topping up to full with diesel makes it fine. It does not. Topping up removes nothing; it gives you a fuller tank of the same mixture. A diesel fuel system doesn't tolerate petrol by percentage in the way that advice assumes.
Not so: a modern diesel copes with a bit of petrol. If anything, the reverse. Smaller components and higher pressure are the way a current diesel runs its fuel, and that makes the protection count more, not less.
Myth: "If it starts and drives, there is no damage done." This is the one that fools drivers. A petrol engine fed diesel normally will not run, and so the motorist stops and the damage stops with them. Nothing looks to have happened when a diesel fed petrol fires up, ticks over and drives away, which it usually does; meanwhile your pump wears. Running doesn't mean fine.
Myth: "Add some two-stroke oil and drive the vehicle home." It is an old fix for a different issue. None of what petrol diluted gets put back by it — and afterwards, that tank still holds the petrol.
Myth: "Drain your tank yourself and you're sorted." After your engine has run, some of the petrol is no longer in your tank: it's in your filter and the fuel lines, and it goes straight back through the pump on your next start. It's also really risky to drain petrol into a can at the kerbside.
How does petrol in a diesel happen?
Nobody does it on purpose, and it's seldom carelessness. A diesel nozzle mostly will not go into a petrol motor, yet the smaller petrol nozzle goes into the filler of a diesel nearly without resistance — so forecourts make this one mistake easy, and only in one direction.
Routine and the vehicle falling out of step is how it takes place. A new vehicle, a hire car or a courtesy car. A household with one petrol and one diesel on the drive. A forecourt you know, only with its pumps arranged differently. A rushed fill on the way to Worcester Foregate Street with a train to catch. Years of petrol motors behind you, a diesel Volkswagen Golf in front of you at the forecourt for its first tank — that is when. Your hand repeats what it has always done once you add rain, a phone call or a back seat full of children.
How to avoid petrol in a diesel on your next fill-up in Dines Green
- Green for unleaded and black for diesel is normal in the UK — but not on every forecourt. Trust the label on the petrol pump, not the colour.
- In a motor you don't know, look inside the flap over your filler or at the cap before the first fill: many motors state the fuel type there.
- One of each in the household? Label the key to your diesel — a bright fob, a sticker — because meaning to remember is not enough.
- Before the nozzle leaves the petrol pump the first time you fill a hired or new motor, say "diesel" aloud. Daft, yes, but it works.
- Put the phone away. This is an easy mistake to make whilst you are thinking about something else.
- Some diesels come with a filler designed to reject a petrol nozzle, and devices you can add are available for cars without one. Such an inhibitor helps up to a point — as a safety net, not a reason to stop reading the petrol pump.
- Stop as soon as you notice. Less petrol in the tank means a weaker mix. It doesn't change what to do next, which is still not to start the vehicle.
Put petrol in a diesel around Dines Green already?
Then, there's only a short order of things. Never crank it, and do not switch your ignition on. Still on the forecourt, at Texaco or anywhere else? Ask the staff to help you roll it away from the petrol pump. Then call 0333 366 0103 and tell us what got in, about how much, and if it has run.
AdBlue, not petrol? Then tell us. Corrosion and deposits, not lost lubrication, make it a different fault — Dines Green has a page all for it.
Dines Green petrol in a diesel jobs: why one costs more than another
An honest single quote does not exist here: four scenarios, four separate tasks. The situation itself does most of the work of moving the cost. Two things follow that: the petrol that went in as a share of what your tank takes, then the spot your car is in and whether a technician can get to it safely.
That is why we ask three questions before costing instead of after: what was put in, how much, and whether it has run. A range turns into a straight figure once those replies are in.
About Dines Green
Dines Green is a suburban area located on the outskirts of Worcester, situated near the River Teme in Worcestershire. Dines Green sits at an elevation of around 30 metres, with its riverside setting influencing the local landscape. Dines Green is characterized by its predominantly semi-detached housing stock, with nearby places including Crown East, Rushwick, and St Johns. Dines Green is close to the city of Worcester, being only 1.5 miles away from the city centre.
Fuel drain cover across Worcestershire, Dines Green included
Dines Green sits in the WR postcode area, and our teams that answer petrol in diesel jobs there work the spots around it as well — Crown East, Rushwick and St Johns among them. The vehicle doesn't need to come to us: we drain on a forecourt, in a supermarket car park, in a lay-by or on your own drive.
At the pump in Dines Green, right now?
The best place there is, then — that's where you are. Switched off it stays; then ring.