Petrol in the AdBlue tank in Thornbury, drained on the spot
Do not turn the ignition, not even to check the dashboard. For petrol in the adblue tank anywhere in Thornbury, a drainer attends with a pump and a sealed tank, empties the fuel system and refills it. From £89 call-out, usually 1 to 3 hours on site; ring 01295 380724 for the price before you commit.
Petrol in the AdBlue tank damages the SCR components that meter the urea into the exhaust. Drain it before the engine runs.

Petrol in the AdBlue tank in Thornbury in numbers
| Place | Thornbury |
|---|---|
| Area | Bristol |
| Postcodes | BD3, BS12, BS35 |
| Job | Petrol in the AdBlue tank |
| Price | Call-out from £89, full price quoted first |
| Time on site | 1–3 hours |
| Who attends | A local drainer with a pump and sealed tank |
| Phone | 01295 380724, 24 hours |
What the drainer does when they reach you in Thornbury
The drainer parks up, checks the vehicle has not been started and makes the area safe with cones and a drip tray. The fuel is pumped out through the filler or the fuel line into a sealed tank on the van, the lines are flushed, a few litres of the right fuel go in, and the engine is started and run until it idles cleanly. The contaminated fuel leaves with them.
Questions worth asking before you book a drain in Thornbury
None of these are awkward questions. Any drainer worth calling will answer them before setting off.
- What is the total, not just the call-out, if it is a straight drain?
- 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?
- Do you bring clean fuel, and is it included?
- Do you take card payment at the roadside?
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.
Postcodes covered around Thornbury
We cover postcode districts BD3, BS12, BS35 and the surrounding streets in Bristol. Give the operator your postcode and you will get an arrival window.
Where a drain can happen around Thornbury
The drainer comes to the vehicle wherever it is in Thornbury, Bristol: pump lane, car park, driveway or kerb. Tell the operator exactly where you are on 01295 380724 — a postcode, a landmark or the name of the filling station — and they will give you an arrival window.
Nearby, drainers regularly attend Rudgeway, Almondsbury, Barkerend and Bradford Moor as well.
The cost of a drain in Thornbury
| 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 Thornbury
Drainers nearby
More of Bristol
From the drainer's notebook
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 Thornbury.
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
How quickly can a drainer reach me in Thornbury?
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 stay with the car?
Ideally yes, so the drainer can confirm what happened and hand the keys back. If not, agree access on the phone.
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.
Is the drain messy?
No. The fuel is pumped into a sealed tank on the van, and a drip tray catches anything from the connection. The area is left as it was.
Can you drain a hire car or a company car?
Yes. Tell the hire company or fleet manager too; many prefer a drain on site to a recovery.
Can I drive to a garage with petrol in the adblue tank?
No. Every mile pushes the fuel further through the pump and injectors. A drainer comes to you, so there is no reason to move the car under its own power.
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.
Once the fuel is drained and you are moving again, Motor Servicing will service the car on your driveway rather than making you find a garage.
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: Environment Agency. 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.