What happens if you put a bit of diesel in a petrol car- # What happens if you put a bit of diesel in a petrol car What happens if you put a bit of diesel in a petrol car? A splash still matters in a modern diesel. Do not start it and do not top it up hoping to dilute it — call first. Call 01293 248666 — a mobile technician comes to the vehicle anywhere across TS1 and TS3 to TS8. 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 Middlesbrough, and that coverage of TS1 and TS3 to TS8 is a dispatch area rather than a marketing claim. It does not mean a building — Wrong Fuel Middlesbrough has no premises and never has. Call 01293 248666 and the equipment comes to you. **Search**: what happens if you put a bit of diesel in a petrol car **What it is**: Small amount of petrol in diesel **Where we cover**: TS1 and TS3 to TS8 **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 you put a bit of diesel in a petrol car: what to do Five litres, twenty litres, a splash — why the amount matters less than the key. ## The mechanical reason the advice is always the same Every drainer tells you not to start the engine, and it is not a sales line. The fuel path runs tank → lift pump → filter → high-pressure pump → injectors, and contamination only moves along it under power. Stationary, the problem stays in the tank where it is cheap to remove. Under power, it spreads into parts that are not. ## Step by step The single rule Leave the engine off. Everything else on this list is secondary to that one instruction. - Do not reposition the car Pushing it into a bay feels considerate but it disturbs the fuel. Stay put unless you are in danger. - If it is dangerous, get out On a verge or live road, everybody out on the side away from traffic and behind the barrier. Then call. - Call 01293 248666, day or night Answered around the clock. Describe the vehicle and what happened; the full price is confirmed on that call. - The fix, where you stand Drain, flush, refill, prime and run-up, carried out at the roadside or on the forecourt. - Finished properly The waste is taken away by a registered carrier with the transfer note, and you get an invoice. ## The full page for this - Small amount of petrol in diesel in Middlesbrough ## Related searches - I put 5 litres of petrol in my diesel car - 20 litres of petrol in diesel car - Small amount of petrol in diesel car - Small amount of diesel in petrol car - 10 litres of petrol in diesel car - Small amount of petrol in diesel engine - 15 litres of petrol in diesel car - 5 litres of diesel in a petrol car ## Before you trust us, check Trustpilot 2,190 verified reviews, 4.8 average. Customers repeatedly credit swift attendance and clear explanations of what went wrong inside the engine. Some customers object to cost, and they are entitled to. Our ranges are public — £89 to £199 call-out, £199 to £1,999 drain — and nobody sets off until you have heard yours. ## Questions we get asked **How much does it cost in Middlesbrough?** Call-out £89 to £199, drain £199 to £1,999. The full price for your vehicle is confirmed on the phone before a technician sets off, so there is no surprise when we arrive. **What happens to the old fuel?** It leaves with us as controlled waste under a waste transfer note. It is not tipped, and it is not resold to you. **Do you cover all of TS1 and TS3 to TS8?** Yes, from one rota — so being at one edge of the area rather than the other changes the arrival window, not the price. **How long will I be waiting?** Arrival depends where you are across TS1 and TS3 to TS8 and what is already running. You get a realistic window on the call rather than an optimistic one. ## Who you are dealing with Wrong Fuel Middlesbrough 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 Middlesbrough 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