--- title: Next Steps: Petrol in a Diesel Car Cotford St Luke canonical: https://www.petrolinadieselcar.co.uk/petrol-in-diesel/cotford-st-luke-somerset/ location: Cotford St Luke county: Somerset latitude: 51.039290 longitude: -3.186110 service: Petrol in a Diesel Car updated: 2026-10-22 --- # Petrol in a Diesel Car in Cotford St Luke: What Happens Now Stop. Motor off. Leave the car that way — no second on, no shifting it anywhere. Cleared and flushed, just where it sits: that is generally all an unrun diesel with petrol in it needs. Whether it remains that simple depends on the minutes to come far more than on everything else. From now on, step by step, for anywhere in Cotford St Luke: ## Petrol in a diesel? What to do in minute one Work through these in order, before you do anything else. - The keys out of your ignition. Turning the ignition on can be enough to prime the system, and priming pulls petrol out of your tank towards the parts it damages. Keep it off altogether. - Topping up with diesel sounds like it thins the issue. It doesn't: nothing gets out, and that tank simply carries more of the same. - Make the car simple to see first — hazards on — if there's traffic going past anywhere near you. - Off the petrol pump by hand. At a forecourt, ask the attendants to help you roll it clear of the pump. Do not start the vehicle to move it, however short the way. - The first thing you will be asked is which fuel went in and roughly how much — and your receipt says both. Keep it. On the M5, under 5 miles from Cotford St Luke, the next junction is the place to come off; elsewhere, the first sensible place to stop. Do not push on to the services. Then go back to step one. ## Cotford St Luke fuel drain: has the engine run yet, or not? Everything after this stage rests on one answer. Not run, not even once: - The petrol sits in your tank, and only there. - The work is a simple drain and a flush, normally done where your car stands. - This, here, is the best spot to be in, and the whole reason stage one matters. If it's been started, even for a moment: - Out of that tank, past the filter, into the lines: that is how far the petrol has travelled. - On a longer run it has got to the high-pressure fuel pump as well as your injectors. - Miles is what makes it a larger job: the lines flushed, a filter seen to, and at times more than that. Diesel keeps your high-pressure pump and the fuel injectors lubricated as it goes through them. Petrol offers them nothing, and that's why the line is drawn there. In the tank, sitting still, petrol does no harm. As soon as it is pumped, petrol starts grinding whatever moves it. ## What to have ready when you call about petrol in a diesel from Cotford St Luke A little preparation is the difference between a technician that finds you and a van that circles. - TA4 1 plus the rest of the postcode makes the ideal way to begin telling us where you are. - A road name is a help: Dene Road, say, or whatever street you've stopped in. A car park does the trick too. - Name a car park by what it serves — the one outside ALDI, for example — and it's much easier to find. - Tell us what the vehicle is — make, model — and confirm it's diesel. - Which got in counts: AdBlue is a separate job from petrol, plus Cotford St Luke has a page just for that. So say. - The amount: your receipt's litres, or else how long you held the nozzle in. - If it has run, how far plus how heavily — as well as whether it has run at all. - Hire or company car? Some agreements want the owner's go-ahead for this work, and getting it before our engineers get there is quicker than after. Next, 0333 366 0103. Not time-critical, your car left at home with nowhere to be? Then will do as well. ## Whilst you wait for a fuel drain in Cotford St Luke The wait is where well-intended help does the damage. Hold to these. - Safety before the vehicle. If it has stopped somewhere unsafe, get yourself clear of the traffic then wait away from it. If it's safe where it sits, stay with it. - Nobody starts it. Not a passer-by being helpful, not to check it is all right, not to roll it a couple of yards. - Additives remain in your boot. Injector cleaner and two-stroke oil take none of the petrol out once more. - Siphoning petrol into a can by the roadside is risky — and it still leaves whatever fuel has already gone beyond the tank. Do not drain the car yourself. - Not for the radio, not for the windows: the ignition remains off. ## Step by step: your fuel drain when our van gets there - Fuel, volume, whether it has run: those replies decide this job, and that's why you get a price after them instead of before. - Out of that tank comes the polluted mix: your tank is drained. - Your lines are purged. If it ran, that petrol has moved beyond the tank, and the fuel lines are holding it. - Cleaned, or replaced if your car has a workable one: the filter is seen to next. - The system is primed with clean diesel. - The start. With new diesel in and the fuel system bled, it is fired up and tested to be sure it runs smoothly. Only once it is running on clean diesel do our technicians head off. Permanent damage is very unusual when it has been spotted quickly, so the car can go right back to normal driving. ## Back on the road in Cotford St Luke after the fuel drain - After it's been started on clean fuel, there's nothing unusual to do: drive normally. - The first miles are the test. A dash warning, exhaust smoke, a rough idle or a hesitant throttle is your signal to stop and ring us once more. - The work may matter later with a hire firm, an insurer or a fleet manager. Hold on to the documents. - Read the label on the petrol pump next time, not the colour of its handle. ## About Cotford St Luke itself Cotford St Luke is a village situated on the riverside in Somerset, with an elevation of around 57 metres. Cotford St Luke lies near the towns of Wells and Bishops Lydeard, and is also close to the villages of Heathfield and Greenway. Cotford St Luke has a mix of housing types, but is predominantly made up of terraced homes. Cotford St Luke is located approximately 136 miles west of London, in the South West region of England. ## Fuel drains across Cotford St Luke and nearby Most of Somerset has the same vans as Cotford St Luke for petrol in diesel call-outs, Heathfield, Bishops Lydeard and Greenway among them. Somewhere tricky to explain, or close to a border? Asking beats assuming — ring. ## Ring, and leave the car off — petrol in a diesel around Somerset Petrol in Diesel takes it from there — on your drive, at the roadside, on the forecourt — once you have done step one: keys out, motor off, receipt in your pocket.