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What happens if i put diesel into a petrol car — 24 hours- 
# What happens if i put diesel into a petrol car
What happens if i put diesel into a petrol car? Less destructive than the reverse, but it still has to come out. Do not keep driving on it. Call 01293 248666 — a mobile technician comes to the vehicle anywhere across SR1 to SR6, DH4 and DH5. Call-out £89 to £199, drain £199 to £1,999.

## What "local" actually means here
It means the number is answered by the people who send technicians to Sunderland, and that coverage of SR1 to SR6, DH4 and DH5 is a dispatch area rather than a marketing claim. It does not mean a building — Wrong Fuel Sunderland has no premises and never has. Call 01293 248666 and the equipment comes to you.

**Search**: what happens if i put diesel into a petrol car
**What it is**: Diesel in petrol
**Where we cover**: SR1 to SR6, DH4 and DH5
**Cost**: Call-out £89 to £199, drain £199 to £1,999, quoted in full before we travel
**Time on site**: About an hour
**Hours**: 24 hours, every day
**Phone**: 01293 248666

## What happens if i put diesel into a petrol car: what to do
Rarer, less destructive, still needs draining.

## Why we ask about the engine before anything else
It is not small talk. Whether the engine ran tells us which parts the wrong fuel has touched, and therefore what the technician needs to bring and what the job is likely to involve. A vehicle that never started needs a drain. One that ran needs a drain and a careful look further along the fuel path.

## Step by step
Do not start it — that is the whole thing Everything else on this list is detail. This one line is the difference between a call-out and a pump.
- Leave the vehicle where it stopped Pushing or coasting is still movement, and movement is how contaminated fuel finds the pickup.
- Sort out safety Hazards, and get people out of the vehicle if you are anywhere near moving traffic.
- Call 01293 248666 Answered around the clock. Tell us what went in and whether it ran; you get the full price before a technician sets off.
- The job itself Extract, flush, refill, prime, run up, check. Roughly an hour on a standard vehicle.
- Old fuel away, invoice done Controlled waste, transfer note, registered carrier. Keep the note — it is what protects you.

## The full page for this
- Diesel in petrol in Sunderland

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- Diesel in petrol car
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## Rated 4.8 out of 5
From 2,190 Trustpilot reviews. Reviewers consistently pick out arrival times and the fact that technicians talk them through what happened rather than just taking the keys.

Where reviews are critical, it is almost always about price. Rather than ignore that: the call-out is £89 to £199 and the drain £199 to £1,999, quoted in full on the phone before travel, and we would rather lose the job on the call than argue about it on the forecourt.

## Questions we get asked

**Is this a garage?**
No. Wrong Fuel Sunderland is mobile. A technician travels to the vehicle wherever it is standing.

**What if it is not safe to drain where I am?**
Then we tell you that on the phone rather than after arriving. Being told honestly costs nothing; being told on arrival costs a call-out.

**Do you work at night?**
Yes, around the clock, every day. A large share of misfuels happen after dark, so the rota reflects that.

**Will it have done damage?**
If the engine was never started, damage is unlikely. If it ran, the risk rises with the distance driven — which is exactly why we ask.

## Who you are dealing with
Wrong Fuel Sunderland is a service by Forecourt Assistance. Forecourt Assistance is a trading name of Fuel Fixer Ltd, company no 08520551, a company of Fuel Fixer International. Registered at Fairway House, Portland Road, East Grinstead, RH19 4ET. Fuel Fixer International is owned by Stockbridge Capital Holdings.

## Across the network
Wrong Fuel Sunderland is one of the sites run by Forecourt Assistance, a trading name of Fuel Fixer Ltd, part of Fuel Fixer International, owned by Stockbridge Capital Holdings. Every site below belongs to the same company.

- Forecourt Assistance — the operator: network directory and author page
- AdBlue in Fuel — AdBlue contamination drains only
- Misfuel Doctor — misfuel help, organised by fuel mix-up
- Wrong Fuel — the evidence base; home of every statistic
- Fuel Fixer Scotland — wrong fuel across Scotland, plus Ireland
- Fuel Fixer — the group operating site
- Misfuel Servicing — wrong fuel and misfuelling help, call-only
Background reading: Diesel fuel — Wikipedia.

Last updated 3 November 2026 · Reviewed by Rambo S, Wrong Fuel Expert
