--- title: Next Steps: Petrol in a Diesel Car Modbury canonical: https://www.petrolinadieselcar.co.uk/petrol-in-diesel/modbury-devon/ location: Modbury county: Devon latitude: 50.349130 longitude: -3.886870 service: Petrol in a Diesel Car updated: 2026-10-03 --- # What Happens Now: Petrol in a Diesel Car in Modbury Stop, and keep the motor off — not on, and not for a second to move it. Petrol in a diesel that hasn't been run is typically a drain plus a flush, done right where your vehicle sits, and what happens in the next few minutes determines that more than anything else. From here on, in order, for anywhere around Modbury: ## Petrol in a diesel, motor off — the first minute In this order, all before anything else: - Keys out of the ignition. Switching your ignition on can be all it takes to prime the fuel system, while priming draws petrol out of the tank toward the parts it damages. Keep the car off altogether. - Don't top it up with diesel. Adding diesel removes nothing. You end up with a bigger tank of the same mixture. - Visibility comes first near moving traffic: put the hazard lights on, and only then think about anything else. - The attendants will generally help you push it clear of the pump. Let them, and roll it by hand — never on the engine, even for a couple of yards. - The first thing we will ask is which fuel you put in and roughly how much — and the receipt shows both. Hold on to it. Still on the move when you realised? Come off the M5 at the next exit if that's where you are, under 50 miles from Modbury, and pull over somewhere sensible and not pushing on to the services. Then start at step one. ## The fork in every Modbury fuel drain: has it run yet? From this point on, everything hinges on a single answer. If your engine has not run at all: - That petrol is still inside that tank and nowhere else. - Draining and flushing, on the spot, is normally all of it. - Being here is the best case — which is the whole point of step one. If your engine has been run, even briefly: - Some petrol has left your tank already, passed through your filter, and reached the lines. - The high-pressure fuel pump and the injectors get it on a bigger run. - Flushing the lines, the fuel filter seen to, occasionally more: this job grows as the miles does. Diesel keeps the high-pressure pump and the fuel injectors protected as it goes through them. Petrol offers them nothing, and that's why the line is drawn there. Petrol resting in a tank damages nothing. The components that move it are wearing the moment petrol is being pumped. ## Before you call about petrol in a diesel in Modbury: what our technicians need A little planning is the difference between a van that finds you and a van that circles. - Where you have stopped. A postcode starting PL21 0 is the ideal place to start. - A road name helps: Brownston Street, say, or whichever street you have stopped in. A car park works too. - Car parks are found more easily by what they serve: tell us the one at Co-op Food, and it is straightforward. - That it's a diesel, plus the make and model of your car. - Which got in counts: AdBlue is a separate job from petrol, and Modbury has a page for it. So tell us. - How long the nozzle was in, or the litres on the receipt — whichever tells us how much. - Has it run? If so, say how far it got, and the way it was driven. - Whose car it is. Some hire and company contracts want the owner to authorise the work, and that is quicker settled before we arrive than after. Next, 0333 366 0103. Not pressing, your car left at home with nowhere to be? Then will do too. ## Modbury fuel drain on its way? Whilst you wait Stick to these: well-meant help does the harm during the wait. - Where the vehicle has stopped settles where you wait. Somewhere exposed: away from it, clear of the traffic. Sensible: with it. Either way, safety ahead of your car. - No one — however kind — starts it, whether to see if it runs or to shift your car a short way. - Something from your boot, oil made for two-strokes or injector cleaner: no additive removes the petrol. - Draining it yourself is out: a can of siphoned petrol on a verge is a danger, and your fuel beyond your tank remains where it is anyway. - Keep the ignition off — your windows and your radio too. ## The fuel drain, step by step, after our van gets there - Fuel, amount, whether it's run: the answers decide this job, and that's why you get a price after them instead of before. - Next your tank is drained, and the contaminated fuel is taken out. - If it ran, the fuel lines are carrying petrol that has moved beyond that tank — so they're cleaned. - Where your car has a serviceable filter, it is changed; if not, cleared. - Bleeding the system comes once clean diesel is in. - The start. With new diesel in and the system bled, it is started and tested to be sure it runs smoothly. Till it runs on new diesel, our engineers stay with it. The car goes back to normal driving right away, and long-term damage is very unusual if it has been caught early. ## After the fuel drain is done: driving around Modbury a second time - After it's been started on clean fuel, there's nothing unusual to do: drive normally. - Keep an eye on the first miles. A warning light, smoke, a rough idle or a flat spot under your throttle tells you to pull over and call us back. - Your documents covers the question a rental company, fleet manager or insurer may ask: what work was carried out. File it. - The handle's colour isn't the thing to go by next time — the label on the pump is. ## About Modbury itself Modbury is a village in Devon, situated on the banks of a river at an elevation of 37 metres, with detached housing being the predominant type of accommodation. Modbury lies approximately 11 miles from Plymouth and 182 miles from London, making it a rural community with easy access to larger cities. Modbury is surrounded by nearby villages such as Wastor, Ermington, and Ludbrook, and has a population of around 1687 residents. Modbury retains its rural character despite its proximity to urban areas. ## Modbury and nearby: fuel drains across the area Most of Devon gets the same teams as Modbury for petrol in diesel call-outs, Wastor, Ermington and Ludbrook among them. Somewhere tricky to describe, or close to a boundary? Asking is better than guessing — ring. ## Leave it off and ring: petrol in a diesel in Devon Keys out, engine off, the receipt in your pocket: that's step one done. The rest is for Petrol in Diesel, wherever the car is — forecourt, roadside or driveway.