Petrol in a diesel car in Warminster: a local drainer comes to you
Stop, switch nothing on, and call 01295 380724. Local drainers across Warminster handle petrol in a diesel car every week: tank out, lines flushed, clean fuel in, all where the vehicle is parked. Expect 45 to 90 minutes on site and a call-out from £89, with the full price given before they leave for you.
Diesel lubricates the high-pressure pump as it passes through; petrol does the opposite and washes that film away, so the pump starts wearing within minutes of running. That is why the ignition is the one thing not to touch.

Petrol in a diesel car in Warminster: the facts
| Place | Warminster |
|---|---|
| Area | Wiltshire |
| Postcodes | BA12 |
| Job | Petrol in a diesel car |
| Price | Call-out from £89, full price quoted first |
| Time on site | 45–90 minutes |
| Who attends | A local drainer with a pump and sealed tank |
| Phone | 01295 380724, 24 hours |
When a drainer arrives in Warminster
Expect a van with a pump and a sealed waste tank. The drainer drains the tank, flushes the system through, refuels with enough clean fuel to reach a forecourt, then starts the engine and lets it settle. You do not need a garage and the vehicle does not move until it is ready.
What to ask on the phone before a drainer travels to Warminster
You are going to pay for the job, so it is worth two minutes on the phone first. These are the questions that separate a straight quote from a surprise at the roadside.
- Do you bring clean fuel, and is it included?
- Will you dispose of the contaminated fuel, and can I have a note of it?
- Is the vehicle over 3.5 tonnes, and does that change the price?
- Can you work on the forecourt, or does the car need to be moved?
- How long until you reach me in Warminster?
What to do right now
- Don't press the start button or turn the key.
- Take a photo of the pump display: it shows the fuel type and the litres.
- Ring 01295 380724 and describe where the car is.
- Agree the price before booking — the call-out starts at £89.
- The drainer empties the tank and flushes the system where the car stands.
- They refuel, start the engine and check it before handing back the keys.
Warminster postcodes
We cover postcode district BA12 and the surrounding streets in Wiltshire. Give the operator your postcode and you will get an arrival window.
Where a drain can happen around Warminster
Anywhere with safe access. That covers filling stations, services, supermarket car parks, business parks and private drives across Warminster, Wiltshire. Busy pump lanes are the one place the drainer may ask to move the vehicle a few metres first, by hand.
What a drain costs in Warminster
| What happened | What the drainer does | Price | Time on site |
|---|---|---|---|
| Spotted at the pump, key never turned | Drain, flush, refuel, test start | From £89 call-out | Under 90 mins |
| Ignition on, or started briefly | Drain and filter flush | Quoted before travel | Around 1–2 hours |
| Drove off the forecourt | Drain, flush and a check of the pump | Quoted before travel | Up to 3 hours |
| Lost power or cut out | Drain, flush and diagnosis on site | Quoted before travel | Depends on findings |
| AdBlue went in the diesel | Tank and lines drained and flushed | Quoted per vehicle | Up to 3 hours |
| Price ranges | The call-out, then the drain | Call-out £89–£199 · drain £199–£1,999 | — |
Other drains in Warminster
Drainers nearby
More of Wiltshire
From the drainer's notebook
Answers
Fuel Fixer, the company behind Wrong Fuel Drain, holds a rating of 4.8 out of 5 from 2,190 reviews on Trustpilot, on a profile claimed since 2017.
Across recent reviews, the themes customers raise most often are staff who stay polite, professional and reassuring during what is a stressful situation, and how quickly a technician arrives and gets the vehicle back on the road in Warminster.
The most common criticism is price. Some customers have felt the cost of an emergency drain was steep for a job that takes under two hours, and that is fair comment on an emergency call-out. It is why the misfuel call-out fee now starts at just £89 and why the full figure is quoted on the phone before a technician sets off — so nothing about the cost is a surprise at the roadside.
Common questions
Will my engine be damaged?
Not if it has not been started. The wrong fuel sitting in the tank touches nothing that a drain cannot clear. Damage starts once it circulates.
What happens to the fuel you take out?
It goes into a sealed tank on the drainer's van and is taken for licensed disposal and recycling. It is never tipped away.
How quickly can a drainer reach me in Warminster?
Usually the same day and often within a couple of hours. The operator gives you an arrival window on 01295 380724 before you agree.
Do I need to move the car off the forecourt?
Only if it is blocking a pump. Push it into a bay with help and the engine off; the drainer can work there.
Do you work at night in Warminster?
Yes. Drainers work 24 hours a day, including weekends and bank holidays.
I only put a little in — do I still need a drain?
In most modern diesels, yes. Even a small amount of petrol reduces the lubrication the pump depends on. A drain is cheap compared with a pump.
Who you are dealing with
Wrong Fuel Drain is a brand of Fuel Fixer Ltd (company number 08520551), a company of Fuel Fixer International, the multinational group behind this website. Fuel Fixer International is owned by Stockbridge Capital Holdings, a private equity group. Work is carried out by Fuel Fixer Ltd technicians under ISO 9001 and ISO 14001, with Environment Agency waste-carrier registration.
North of the border, Fuel Fixer Scotland runs the same service across every Scottish postcode.
Across the network
Fuel Fixer sites: Fuel Fixer · Misfuel Doctor · UK Wrong Fuel Repository · Fuel Fixer Scotland
Forecourt Assist sites: Forecourt Assist · AdBlue in Fuel · Wrong Fuel Cumbria · Wrong Fuel Teesside · Wrong Fuel Carlisle · Wrong Fuel Penrith · Wrong Fuel Keswick · Wrong Fuel Kendal · Wrong Fuel Workington · Wrong Fuel Maryport · Wrong Fuel Whitehaven · Wrong Fuel Newcastle · Wrong Fuel Gateshead · Wrong Fuel Sunderland · Wrong Fuel Durham · Wrong Fuel Darlington · Wrong Fuel Middlesbrough · Wrong Fuel Dumfries
Also in the group: Motor Servicing
Background reading: HMRC rebated fuel guidance. Service operated by Fuel Fixer, alongside Wrong Fuel, Fuel Fixer Scotland and Motor Servicing, part of Fuel Fixer International and owned by Stockbridge Capital Holdings.