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How to Fix a Misfuelled Car and When to Call 0800 999 1182

Misfuelling a car happens more often than you might think. It’s a simple mistake with potentially costly consequences. Putting the wrong type of fuel in your vehicle can cause serious damage to the engine and fuel system. Knowing what to do immediately after misfuelling can save you time, money, and stress. This guide explains how to fix a misfuelled car and when you should call 0800 999 1182 for professional help.


Close-up view of a car fuel filler neck with a petrol nozzle inserted
Misfuelled car fuel filler neck with petrol nozzle

What Happens When You Misfuel Your Car


Misfuelling occurs when you put petrol in a diesel car or diesel in a petrol car. Both mistakes can cause damage, but the effects differ depending on the fuel type and engine.


  • Petrol in a diesel car: Petrol acts like a solvent and reduces the lubrication diesel provides. This can cause damage to the fuel pump and injectors, leading to costly repairs.

  • Diesel in a petrol car: Diesel is thicker and harder to ignite in a petrol engine. This can cause the engine to misfire, stall, or fail to start.


The severity of the damage depends on how much wrong fuel was added and whether the engine was started after misfuelling.


Immediate Steps to Take After Misfuelling


If you realise you have misfuelled your car before starting the engine, you have a better chance of avoiding damage. Follow these steps:


  1. Do not start the engine. Starting the engine circulates the wrong fuel through the system, increasing the risk of damage.

  2. Turn off the ignition if the engine is already running.

  3. Call for professional help. Contact 0800 999 1182 for advice and assistance. They can arrange for your car to be drained and cleaned safely.

  4. Inform the garage or recovery service about the misfuelling so they can prepare the right equipment.

  5. Avoid driving the car. Even a short drive can cause the wrong fuel to spread through the engine.


If you have already driven the car, the damage might be more extensive, and professional inspection is necessary.


How Professionals Fix a Misfuelled Car


When you call 0800 999 1182, experts will guide you through the process or send a technician to your location. Here’s what typically happens:


  • Draining the fuel tank: The wrong fuel is completely drained from the tank to prevent further damage.

  • Flushing the fuel system: The fuel lines, injectors, and filters are cleaned to remove any remaining incorrect fuel.

  • Replacing fuel filters: Fuel filters often get clogged or contaminated and need replacement.

  • Refilling with the correct fuel: The tank is refilled with the right type of fuel.

  • Testing the engine: The technician will start the engine and check for any issues or damage.


This process requires special tools and knowledge, which is why calling 0800 999 1182 is the safest option.


Can You Fix a Misfuelled Car Yourself?


Some drivers may consider fixing the problem on their own, but this is risky. Draining and flushing the fuel system requires:


  • Proper tools like fuel pumps and containers

  • Knowledge of the vehicle’s fuel system layout

  • Safe handling of fuel to avoid spills and fire hazards


Attempting a DIY fix without experience can lead to incomplete cleaning, causing long-term damage. It’s best to call 0800 999 1182 and let professionals handle the repair.


How to Prevent Misfuelling in the Future


Preventing misfuelling is easier than fixing it. Here are some tips to avoid this costly mistake:


  • Check the fuel type before filling. Look at the fuel cap or inside the fuel door for labels.

  • Use different coloured nozzles as a guide. Petrol nozzles are usually green or black, diesel nozzles are often black or yellow.

  • Avoid distractions at the pump. Focus on the task and double-check the fuel type.

  • Ask for help if unsure. Petrol station attendants can assist if you’re uncertain.

  • Keep a reminder note in your car. A small sticker near the fuel cap can help you remember the correct fuel.


Signs Your Car Has Been Misfuelled


Sometimes you might not realise you misfuelled until the car shows symptoms. Watch for these signs:


  • Engine warning lights on the dashboard

  • Difficulty starting the engine or failure to start

  • Rough idling or stalling

  • Loss of power or poor acceleration

  • Strange noises from the engine or fuel pump


If you notice any of these signs after refuelling, stop driving immediately and call 0800 999 1182 for advice.


Costs and Consequences of Misfuelling


Misfuelling can lead to expensive repairs. The cost depends on:


  • How much wrong fuel was added

  • Whether the engine was started or driven

  • The type of vehicle and engine


Repairs can range from a simple fuel system flush costing around £100 to major repairs costing over £1,000 if the fuel pump or injectors are damaged. Insurance policies may or may not cover misfuelling, so check your coverage.


Why Calling 0800 999 1182 Is the Best Choice


Calling 0800 999 1182 connects you with experts who understand the urgency and complexity of misfuelling. They offer:


  • Fast response and advice

  • Safe fuel draining and cleaning

  • Access to trained technicians and proper equipment

  • Peace of mind knowing your car is in good hands


Trying to fix the problem without professional help can lead to bigger issues and higher costs.


 
 
 

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