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Wrong fuel services in Wales

Short answer

Wrong fuel services in Wales: every fuel problem we drain, collect and dispose of. Fuel Fixer Wales is Welsh-staffed and drains petrol from diesel, diesel from petrol, AdBlue and red diesel on-site anywhere in Wales, usually within 45 to 90 minutes of arriving, from £89. We also collect and dispose of waste fuel, heating oil and kerosene under licence. Do not start the engine — call 01295 380724.

Call 01295 380724 — 24/7, all of Wales

Isle of Anglesey / Ynys Môn — 5 places coveredGwynedd — 16 places coveredConwy — 11 places coveredDenbighshire / Sir Ddinbych — 7 places coveredFlintshire / Sir y Fflint — 5 places coveredWrexham / Wrecsam — 16 places coveredPowys — 9 places coveredCeredigion — 8 places coveredPembrokeshire / Sir Benfro — 10 places coveredCarmarthenshire / Sir Gaerfyrddin — 13 places coveredSwansea / Abertawe — 26 places coveredNeath Port Talbot / Castell-nedd Port Talbot — 12 places coveredBridgend / Pen-y-bont ar Ogwr — 8 places coveredVale of Glamorgan / Bro Morgannwg — 8 places coveredCardiff / Caerdydd — 35 places coveredRhondda Cynon Taf — 15 places coveredMerthyr Tydfil / Merthyr Tudful — 7 places coveredCaerphilly / Caerffili — 9 places coveredBlaenau Gwent — 5 places coveredTorfaen — 10 places coveredMonmouthshire / Sir Fynwy — 5 places coveredNewport / Casnewydd — 18 places covered
All 22 council areas, 258 places. Tap a council area to see inside it.

Welsh team, local drainersA Welsh team and local drainers working every council area from Anglesey to Monmouthshire. Owned and run by Fuel Fixer Ltd — we are not a Welsh-owned company, and we do not claim to be.

Reviewed by Rambo S, Wrong fuel expert, Fuel Fixer · last checked 1 November 2026

Wrong fuel drains

Wrong fuelPetrol in a diesel carDiesel in a petrol carAdBlue in the diesel tankUnleaded in dieselRed diesel in the tankContaminated fuelMobile fuel drainFuel doctorMisfuellingWrong fuel symptomsWrong fuel drain costWrong fuel engine damageWrong fuel in a vanWrong fuel in a boatScreen wash in the AdBlue tankAdBlue in the screen wash tankDiesel in the AdBlue tankAdBlue in the petrol tankPetrol in the AdBlue tankWater in the diesel tankWater in the petrol tankWater in the AdBlue tankWater in the screen wash tankScreen wash in the petrol tankScreen wash in the diesel tankThe wrong fluid in the tankWelsh fuel drainer

Fuel collection and disposal

Fuel collectionContaminated fuel collectionFuel disposalAgricultural fuel collectionCommercial fuel upliftWelsh old petrol collectorWelsh old petrol disposalWelsh old diesel collectorWelsh old diesel disposalWelsh red diesel collectorWelsh red diesel disposalWelsh kerosene collectorWelsh kerosene disposalWelsh heating oil collectorWelsh heating oil disposal

Wrong fuel services in Wales: how it works

ServiceMobile wrong-fuel drain and flush
CoversPetrol in diesel, diesel in petrol, AdBlue, red diesel, contaminated fuel, collection and disposal
AreaAll 22 Welsh council areas, coast, valleys and mountains
Places covered258
Typical cost£199 – £1,999, quoted before we travel
Time on site45–90 minutes
Waste regulatorNatural Resources Wales
Helpline01295 380724 — 24 hours, 7 days

What to do right now

  1. Do not turn the key or start the engine — that is what turns a drain into a repair.
  2. Do not move the vehicle. On a forecourt, apply the handbrake and tell the station staff.
  3. Call 01295 380724 with your location, your vehicle and which fuels were mixed. You get the price before we set off.
  4. A technician attends with a licensed drainage unit and makes the area safe.
  5. The contaminated fuel is pumped out and the fuel lines are flushed through.
  6. Clean fuel goes in, the vehicle is started and checked, and you drive away. The waste fuel leaves with us for compliant disposal.
Call 01295 380724 now

What it costs

Call-out is £89 to £199 and the drain itself is £199 to £1,999. The two are quoted separately, and your exact price is confirmed on the phone before a technician sets off. Remote upland and coastal jobs are quoted with travel included, so the figure you are given is the figure you pay.
Your situationWhat is involvedTypical costTime on site
Spotted it, engine never startedDrain the tank, flush the lines, refill with clean fuel£19945–90 mins
Engine started but not drivenDrain plus a flush of the lines and filterMid range1–2 hours
Driven a short distanceDrain, flush and a check of the pump and injectorsHigher1–3 hours
Driven until it lost power or cut outDrain, flush and fuel-system diagnosisUpper endAssessed on site
AdBlue in the diesel tankFull drain and flush of tank and fuel linesQuoted per vehicle1–3 hours

Services

What Welsh customers say

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Common questions

Can I drive with wrong fuel?

No. Starting or driving pumps it through the system and can turn a straightforward drain into an expensive repair. Leave the vehicle where it is and call 01295 380724.

How long does the drain take in Wales?

About 45 to 90 minutes on site once the technician arrives. Vehicles that were started or driven take longer, because the lines and filter need flushing as well as the tank.

How much does it cost in Wales?

Most jobs fall between £199 and £1,999 depending on the vehicle, how much wrong fuel is in the tank and whether the engine was started. You get the price on the phone before we travel.

Will it have damaged the engine?

Only if it has been run through the system. Caught before starting, it sits in the tank and a drain removes it cleanly.

Does insurance cover it?

Often not. Most car insurance policies exclude misfuelling as standard, though some breakdown policies and optional add-ons include it. Check your own wording.

Do you cover rural and island Wales?

Yes. Technicians attend forecourts, roadsides, homes, farms and workplaces across Wales, including the uplands and the islands. Remote jobs are quoted with travel included so the price does not move.

Call 01295 380724 — 24/7, all of Wales

Background reading: HMRC rebated fuel guidance. Operated by Fuel Fixer. For what wrong fuel does to an engine, see Misfuel Doctor; south of the border, see Wrong Fuel.

Call now 01295 380724 — 24/7