Watford, Hertfordshire · 24/7
Wrong fuel Watford
Misfuelled in Watford? Keep the ignition off — we'll come to you. Mr Fuel drains and flushes petrol-in-diesel and diesel-in-petrol misfuels on forecourts, driveways and car parks across Watford and Hertfordshire, 24 hours a day, from a fixed £199.
Don't know exactly where you are?
One tap pinpoints you and finds your nearest technician. Your location stays on your phone unless you choose to send it.
Do this now
- 1Don't start the engineDon't turn the ignition on either. Keyless? Keep the fob away from the car.
- 2Neutral and push clearAsk staff to help push the car away from the pump.
- 3Tell the cashierThey deal with misfuels every week.
- 4Call Mr FuelFixed price and arrival time on the phone.
On a motorway? Get behind the barrier first. In danger, call 999.
- 24/7, 365 daysNights, weekends, bank holidays — no surcharge
- Fixed from £199Price agreed on the phone, before we set off
- No fix, no feeIf we can't get you going, you don't pay for the drain
- Legal disposalWaste fuel removed by a licensed carrier
Mobile fuel drain in Watford
We cover every postcode district in Watford — WD17, WD18, WD19, WD24, WD25 — and the surrounding Hertfordshire villages, home to around 102,000 people. Wherever you are when you realise, our technicians bring the drain to you: the supermarket forecourt, the retail park, your street or your workplace car park.
Watford is right by the M25 (London Orbital) and the M1 about 3 miles away. Motorway fuel stops are where most misfuels happen — tired drivers, unfamiliar cars, pumps in a different order from your usual station.
Nearby service areas we regularly attend: London Gateway (M1 J2–4, 6 miles); South Mimms (M25 J23, 8 miles); Beaconsfield (M40 J2, 11 miles). If you've misfuelled there, stay on the forecourt or move into the car park — don't drive.
Our Watford technicians also cover Bushey, Oxhey, Croxley Green, Garston, Kings Langley and the roads between.
Petrol in diesel in Watford
The most common misfuel we see in Watford. Petrol strips the lubrication a diesel's high-pressure pump relies on, so the golden rule is simple: leave the engine off. Our technician drains the tank, flushes the system, adds 10 litres of fresh diesel and tests the car before leaving. More about petrol in diesel.
Diesel in petrol in Watford
Rarer, because the diesel nozzle is wider, but it happens — especially with vans and older cars. Diesel won't burn in a petrol engine and will foul the plugs. Same fix: engine off, call us, drained and refuelled at the roadside. More about diesel in petrol.
How it works in Watford
Call, we come to you, you drive away
Oops — wrong nozzleIt happens to around 150,000 UK drivers a year. Stop. Don't start the engine.
Local questions
Wrong fuel in Watford: FAQs
How quickly can you reach me in Watford?+
Our target is to reach most drivers in Watford within 45 to 60 minutes, day or night. We give you a real arrival time when you call and keep you updated by text.
How much is a wrong fuel drain in Watford?+
A fixed £199 if the engine hasn't been started, or £249 if it has — including the drain, flush, 10 litres of fresh fuel and legal disposal. No call-out fee and no night or weekend surcharge in Watford.
I've put petrol in my diesel at a Watford petrol station. What should I do?+
Don't start the engine or turn the ignition on. Put the car in neutral and push it clear of the pump with help from staff, tell the cashier, then call us on 0800 000 0000. We'll drain it on the forecourt or in a nearby car park.
Do you cover WD17 and the rest of Hertfordshire?+
Yes — every Watford postcode (WD17, WD18, WD19, WD24, WD25) and the whole of Hertfordshire.
Can you come to London Gateway services?+
Yes. London Gateway on the M1 is about 6 miles from Watford. Stay on the forecourt or push the car into the car park — don't rejoin the motorway.
Wrong fuel in Watford? Keep the engine off.
Call now for a fixed price and a real arrival time. 24 hours a day, 7 days a week, 365 days a year.