How Worried Should You Be? Petrol in a Diesel Car in Middle Littleton
Unstarted? Then less anxious than you likely feel. Till the ignition primes the pump, your starter cranks, or the vehicle is driven, petrol in a diesel tank just sits there and does no harm. Which means the truthful reply to that first Middle Littleton query — "have I ruined it?" — usually no. Leave the motor off then phone Petrol in Diesel — that keeps it that way. The remainder of this page covers what petrol actually does to a diesel, how to judge how far it has got, and how to make sure it doesn't happen to you again.
What petrol in a diesel does to your engine
Two jobs fall to diesel on its route round a motor. Oiling comes before burning; it does both. Very fine tolerances are built into the injectors and the high-pressure fuel pump, and only the diesel running through stops their surfaces grinding together.
Petrol handles the first job poorly and the second not at all. A pump running on a petrol blend is wearing itself out, because petrol is thinner than diesel and takes away the lubrication the fuel system relies on. Petrol is also designed to resist igniting under compression — the reverse of what a diesel needs from its fuel — and that is where the rattling comes.
Put those together and the shape of the issue is clear. It is circulation that does the damage, not contact. Any tank with petrol in it is a fuel issue. A pump that has been running on that petrol is the beginning of a mechanical one, and whatever a worn pump sheds travels on with the fuel to your injectors downstream.
How serious is petrol in a diesel? Four situations our technicians see in Middle Littleton
Fuelled but not once started — as good as it gets. On a forecourt, and truly only there, the petrol is still confined to that tank — because anywhere else your car was driven to get to it. The job is emptying and purging on the spot.
Started for a moment, or only the ignition on. Petrol has come out of that tank and reached the fuel filter and your lines, since the fuel system has been bled. Drain, flush, deal with the filter: still normally easy.
Those few miles driven were your pump labouring on fuel diluted by petrol the whole way. Mileage is only half of that; how hard it was driven matters equally. Either way the work includes the tank, your lines, your filter and fresh fuel through the whole system. A school run to The Littletons Church of England Academy is one thing. Any miles on the Strensham Interchange, under 15 miles from Middle Littleton, means your engine working hard throughout, and a run to Worcester, under 15 miles away, is a very different job too.
It protested, and only then stopped: smoke, rattling, a throttle gone soft, an idle gone ragged. The fuel is not behaving like diesel any more, and the engine is telling you. Pull up where you are — on the verge on School Lane, at the kerb, down a side road — and don't move it. Permanent damage is very rare if a vehicle is stopped quickly, and the drain and flush-through that still go first take care of it.
Middle Littleton people and the petrol in a diesel myths they hear
Myth: "Fill it the rest of the way with diesel and it'll be fine." It will not. Nothing comes out when you top up — that tank just carries more of the same mixture. The idea behind that guidance — that diesel fuel systems accept petrol by percentage — is wrong.
Myth: "A current diesel can cope with a bit of petrol." If anything, the opposite. A newer diesel runs its fuel through more precise parts at higher pressure, which makes the protection count more, not less.
This is the one that fools drivers. Myth: "If it starts and drives, there is no harm done." Diesel in a petrol motor usually means a motor that won't run: the driver stops, and so does the damage. Feed petrol to a diesel and it normally starts, idles and pulls away like nothing happened — all the while its pump is wearing. Fine and running aren't the same thing.
Myth: "Add some two-stroke oil and drive the vehicle home." It's an outdated fix for a distinct problem. That petrol is still inside the tank after that, and whatever it has diluted is not put back.
Myth: "Drain your tank yourself and you're sorted." Once the motor has run, some of the petrol is no longer in that tank: it is in the filter and your lines, and it goes straight back through your pump at the next start. And, a can of petrol drained by the kerbside is genuinely hazardous.
How does petrol in a diesel take place?
On purpose? Never. Through carelessness? Rarely, if ever. A diesel nozzle generally won't fit a petrol car, but the narrower petrol nozzle goes into the filler of a diesel almost without resistance — so forecourts make this one error simple, and only in that direction.
Routine and your car falling out of step is how it occurs. A new car, a hire car or a courtesy car. A household with one petrol and one diesel on the drive. A well-known forecourt with the pumps in a different order. A hurried fill en route to Honeybourne with a train to catch. A new-to-you diesel Volkswagen Passat, its first fuelling, and a motorist accustomed to petrol: exactly when it takes place. Throw in rain, a phone call or a back seat full of children, and your hand does what it has always done.
Next time you fill up in Middle Littleton: preventing petrol in a diesel
- The label is what matters, and so check the pump rather than the colour: in the UK unleaded handles are usually green and diesel black, but not on every forecourt.
- The first fill in a new vehicle is the time to check the filler flap — on it, or on the cap, plenty of cars state the fuel they take.
- Good intentions do less than a sticker or a fob in a vivid colour on your diesel's key when a house has one of each. So mark it.
- "Diesel", out loud, before you pick up the nozzle — each time a new or hired car needs its first tank. It seems daft. It works.
- 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 come with a filler built to reject 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 pump.
- Less petrol means a weaker blend, so stop as soon as you realise — while remembering that the next step is unchanged. It's still not to start the vehicle.
Put petrol in a diesel around Middle Littleton already?
Short and simple, then, is the order of things. Starting it is out, and so is switching on your ignition. The attendants at the forecourt — whether at HGV itself or wherever you filled up — will normally help push it away from the petrol pump if you ask. What went in, roughly how much, and if it has run: tell us those when you phone 0333 366 0103.
AdBlue, not petrol? Then say so. Corrosion and deposits, not lost lubrication, make it a different issue — Middle Littleton has a page all for it.
Why one petrol in a diesel task in Middle Littleton costs more than another
Four different tasks sit behind the four situations above — which is why there's no fair single quote. Mostly, your cost shifts with which one you are in. Two things follow that: the petrol that went in as a proportion of what that tank takes, then the place the vehicle is in and whether a van can reach it safely.
Before any quote, not after, come three questions: your fuel that got in, its amount, and if it has run. That's why. Given the answers, you get a straight figure rather than a range.
About Middle Littleton itself
Middle Littleton is a village in Worcestershire, situated on the banks of a river at an elevation of 51 metres, with semi-detached housing being the predominant type of accommodation. Middle Littleton lies near the villages of South Littleton and North Littleton, and is approximately 14.8 miles from Worcester. Middle Littleton has a population of around 624 residents, and is located in a rural area of the West Midlands region. Middle Littleton is also within commuting distance of larger cities, being around 86.4 miles from London.
Across Worcestershire and around Middle Littleton: fuel drain cover
The vans answering petrol in diesel call-outs around Middle Littleton, in the WR postcode area, equally work the locations around it, South Littleton, North Littleton and Offenham Cross among them. A forecourt, a supermarket car park, a lay-by or your own driveway are all locations our technicians drain, and your vehicle does not need to come to us.
Still at the pump in Middle Littleton?
Then you are in the best spot there can be. Turned off it stays; then phone.