--- title: Explained: Petrol in a Diesel Car Broadway canonical: https://www.petrolinadieselcar.co.uk/petrol-in-diesel/broadway-worcestershire/ location: Broadway county: Worcestershire latitude: 52.036040 longitude: -1.860430 service: Petrol in a Diesel Car updated: 2026-10-08 --- # How Worried Should You Be? Petrol in a Diesel Car in Broadway Not started? Then less anxious than you probably are. Everyone around Broadway begins with "have I wrecked it?", and the honest answer is normally no: petrol left inside that tank of any diesel stays harmless till priming, cranking or driving draws it into the fuel system. Keep it like that: leave your motor off then phone Petrol in Diesel. Read on for three things: the effect petrol has inside a diesel engine, the signs of how far it has got, and the way to make sure you don't do it again. ## Your engine and petrol in a diesel: what happens Passing through an engine, diesel does two jobs at once. It protects to begin with, and after that does it burn. Extremely fine tolerances go into your injectors and the high-pressure fuel pump, and only your diesel running through keeps their surfaces from grinding together. Of these two jobs, petrol manages the first poorly and the second not at all. A pump running on a petrol mix is wearing itself out, since petrol is runnier than diesel and strips out the lubrication 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's where any rattling starts. Seen together, they make clear what shape the trouble has. Contact doesn't do the damage — circulation does. All a tank with petrol in it amounts to is a fuel problem. Whatever a worn pump sheds goes on, borne by the fuel, into the fuel injectors further along, which is why a pump that has worked on the petrol is where a mechanical fault starts. ## Petrol in a diesel around Broadway: how bad is it? Four situations Fuelled, and not started: no case is better. The petrol is inside the tank and just your tank, and the task is a drain and a flush where your car stands. This is the one scenario that can only truly happen on a forecourt, as anywhere else the car has been driven to get there. A moment's running, or just your ignition on. Once primed, the fuel system has pulled petrol out of your tank up to the filter and your lines. Drain, flush, deal with the fuel filter: still usually easy. A couple of miles driven, and the pump has spent every one of them running on thinned fuel. Miles is only half of that; how hard it was driven counts just as much. Either way this work includes the tank, the lines, the filter and clean fuel through the entire system. The school run to St Mary's Catholic Primary School is one matter. Getting as far as Worcester, under 25 miles away, makes a very different task — as does any miles on the M5, under 15 miles from Broadway, with the motor working hard the whole time. It protested, and only then stopped: smoke, knocking, a throttle gone soft, an idle gone lumpy. What you are hearing is your motor reporting fuel that no longer acts like diesel. Stop on the spot — on the verge on Kennel Lane, at the kerb, down a side road — and do not move it again. A vehicle pulled over soon very seldom has long-term damage, because the drain and the flush, which still come first, deal with it. ## Myths Broadway motorists hear about petrol in a diesel "Top it up the rest of the way with diesel and it will be fine" — a myth. It will not. A bigger tank of the same mixture is all it gives, since topping up takes out nothing. A diesel fuel system doesn't tolerate petrol by percentage in the way that guidance presumes. "Current diesels can handle a little petrol" — a myth, and nearer the reverse. At higher pressure, through smaller parts: that's how a current diesel handles its fuel, so the lubrication counts for more, not less. This is the one that catches motorists. Myth: "If it starts and drives, there is no harm done." Diesel in a petrol motor usually means a motor that will not run: the motorist stops, and so does the damage. While the pump grinds, a diesel fed petrol usually starts, ticks over and drives away as though nothing has happened. Running is not the same as fine. "A drop of two-stroke oil and drive it home" — a myth, borrowed from a fix from years ago, for a separate problem. None of what petrol thinned is put back by it — and later, that tank still holds that petrol. "Drain it yourself and you are sorted" — a myth, since after it has been running some petrol sits in your filter and lines, waiting to go right back through your pump at the next start. Besides, petrol drained into a can by the road is truly hazardous. ## How does petrol in a diesel take place? It's rarely carelessness, and no one does it on purpose. The forecourt makes it easy: the petrol nozzle is the smaller of the two, and it slips into a diesel filler with almost no resistance, while a diesel nozzle generally won't go into a petrol car at all. So the slip runs one way. It takes place when routine and the vehicle stop matching. Courtesy car, hire car, or a car that is brand new. Households running one of each, petrol and diesel. The pumps in a different order on a familiar forecourt. Filling up in a rush on the way to Honeybourne, with a train to catch. A new-to-you diesel Renault Megane, its first fuelling, and a driver accustomed to petrol: precisely when it takes place. The hand repeats what it has always done once you add rain, a phone call or a back seat full of kids. ## Next time you fill up around Broadway: avoiding petrol in a diesel - Not every forecourt in the UK follows green for unleaded and black for diesel, even if most usually do. Check the petrol pump's label; the colour is only a clue. - Plenty of cars state the fuel type inside the filler flap or on the cap, and so check it on the first fill in any motor you don't know. - Good intentions do less than a sticker or a fob in a bright colour on the diesel's key if a house has one of each. So label it. - It seems daft and it does the trick: on your first fill in a new or hired car, say "diesel" out loud before you take the nozzle off the pump. - While you're thinking about something else, this is an easy mistake to make — so put your phone away. - Some diesels have a filler designed to block a petrol nozzle, and devices you can add are available for vehicles without one. Such an inhibitor helps up to a point — as a backstop, not a reason to stop checking the petrol pump. - Less petrol makes a thinner mix, so stop the moment you notice — while remembering that the next stage is unchanged. It's still not to crank it. ## Petrol already in a diesel around Broadway? Begin here The order of things is brief, then. Starting it is out, and so is turning on your ignition. Ask the attendants to help you roll it away from the pump if you are still at the forecourt, whether that's Murco or somewhere else. Call 0333 366 0103 next, with three facts — the fuel, the rough quantity, and if it has run. If it was AdBlue rather than petrol, say so. That is a separate issue — corrosion and deposits and not lost protection — and it has its own page for Broadway. ## What makes one Broadway petrol in a diesel task cost more than the next An honest single quote doesn't exist here: four scenarios, four separate tasks. Chiefly, the cost shifts with which one you're in. Beyond that it's the share — how much petrol went in against how much the tank takes — and then where the vehicle is and whether a van can reach it safely. Ahead of any quote, not after, we ask three questions: your fuel that got in, the volume, and if it's run. That's why. Their replies are what change a range into one firm number. ## About Broadway Broadway is a village in Worcestershire, situated in the West Midlands region of England, with a population of around 967 people. Broadway sits at an elevation of 94 metres, surrounded by nearby places such as West End, Bury End, and Buckland. Broadway is characterised by its predominantly detached housing stock, reflecting its rural setting. Broadway is located approximately 18.8 miles from Worcester and 82.6 miles from London. ## Broadway and Worcestershire: where our fuel drain cover runs The teams answering petrol in diesel call-outs in Broadway, in the WR postcode area, equally work the places near it, West End, Bury End and Buckland included. You need not move your car to us. Forecourts, supermarket car parks, lay-bys and your own driveway are all places where we work. ## In Broadway and still at the petrol pump? In that case, you couldn't be in a better spot. Ring, and leave it switched off.