Petrol in a diesel car in Friern Barnet London: a local drainer comes to you
Keys out, bonnet shut, hazards on if you are at the roadside. Petrol in a diesel car in Friern Barnet London is drained on site by a local drainer: pumped out, flushed and refilled in about 45 to 90 minutes. Call-out from £89 — call 01295 380724 and you get the figure before anyone drives to you.
Here is why it matters. 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.

Petrol in a diesel car in Friern Barnet London at a glance
| Neighbourhood | Friern Barnet London |
|---|---|
| City | London |
| Postcodes | N11 |
| 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 |
What to expect from the drainer in Friern Barnet London
Most of the time is spent draining. A full tank of the wrong fuel takes longer to pump than a few litres, so the drainer will tell you roughly how long it will be once they see the gauge. After that it is a flush, a refuel and a test run before they leave.
What to ask on the phone before a drainer travels to Friern Barnet London
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.
- Will you dispose of the contaminated fuel, and can I have a note of it?
- How long until you reach me in Friern Barnet London?
- What is the total, not just the call-out, if it is a straight drain?
- How much more if the engine has already been started?
- Can you work on the forecourt, or does the car need to be moved?
What to do right now
- Leave the key out of the ignition and do not unlock the steering to push the car.
- If you are at the pump, tell the cashier; most forecourts will let the car stay in a bay.
- Call 01295 380724. Say what fuel went in, roughly how much, and where you are.
- Agree the price on the phone. Nobody travels until you have.
- The drainer pumps out the tank, flushes the lines and adds clean fuel.
- They start the engine, check it runs cleanly and take the old fuel away.
Postcodes covered around Friern Barnet London
Drainers cover postcode district N11, and the roads either side of them, across London.
Where you can be drained in Friern Barnet London
Forecourt staff in Friern Barnet London see this every week and will usually let the vehicle sit in a bay until the drainer arrives. Otherwise the drainer can work on your drive, at your workplace or at the kerb outside.
Calls from Bounds Green London, Arnos Grove London and New Southgate London go to the same drainers as Friern Barnet London.
How much it costs in Friern Barnet London
| What happened | What the drainer does | Price | Time on site |
|---|---|---|---|
| Noticed before starting | Straight drain and refuel | From £89 call-out | About an hour |
| Started, not driven | Drain plus filter and line flush | Quoted up front | 1–2 hours |
| Drove a mile or two | Drain, flush, check of the injection pump | Quoted up front | 1–3 hours |
| Engine cut out on the road | Drain, flush and on-site diagnosis | Quoted up front | Judged on arrival |
| AdBlue in the diesel tank | Drain and flush of tank and fuel lines | Quoted per vehicle | 1–3 hours |
| Price ranges | The call-out, then the drain | Call-out £89–£199 · drain £199–£1,999 | — |
Other drains in Friern Barnet London
Drainers nearby
More of London
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 Friern Barnet London.
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
The engine is running rough — is that the wrong fuel?
If it started shortly after filling up, very likely. Pull over when it is safe, switch off and call 01295 380724.
Will the car need a service afterwards?
Not after a straight drain. If the engine ran on the wrong fuel, the drainer will tell you whether the filter should be changed.
Do you work at night in Friern Barnet London?
Yes. Drainers work 24 hours a day, including weekends and bank holidays.
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.
What if I have already driven home?
Leave it on the drive with the engine off and call 01295 380724. The drainer can do the whole job at your house.
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.
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.
A misfuel is a good moment to get the filters and the rest of the car looked at — Motor Servicing comes to your home or workplace.
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: Misfuelling (Wikipedia). 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.