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What Happens When You Put Petrol in a Diesel Car

Putting petrol in a diesel car is a common mistake that can have serious consequences. In the United Kingdom, where diesel cars are prevalent, this error happens more frequently than you might think. So, what happens when you put petrol in a diesel car?

When petrol is mistakenly added to a diesel fuel tank, it causes several problems. Firstly, petrol acts as a solvent and can damage the fuel pump and injectors. Additionally, petrol does not have the same lubricating properties as diesel, which can lead to increased wear and tear on the engine.

Furthermore, the combustion properties of petrol and diesel are different. Diesel engines rely on compression to ignite the fuel, while petrol engines use a spark. When petrol is used in a diesel engine, it can cause misfiring, rough running, and even engine failure.

If you realize your mistake before starting the engine, it is best to have the fuel tank drained immediately. However, if you have already driven the vehicle, the damage may be more severe. In such cases, it is recommended to have the car towed to a garage for a thorough inspection and repair.

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1. How common is it to put petrol in a diesel car in the UK?
It is relatively common, especially with the rise in diesel car ownership.

2. Can I fix the problem myself?
It is not recommended to fix the issue yourself, as it may cause further damage. Seek professional help.

3. How much does it cost to repair the damage?
The cost can vary depending on the extent of the damage. It may range from a few hundred to several thousand pounds.

4. Are there any additives that can help?
Some additives claim to mitigate the damage, but they are not guaranteed to work. It is best to consult a professional.

5. Can I claim insurance for the damage?
It depends on your insurance policy. Check with your provider to see if you are covered.

6. How long does the repair process take?
The repair process can take anywhere from a few days to several weeks, depending on the severity of the damage.

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7. How can I prevent this mistake?
Always double-check the fuel nozzle before filling up your car and be aware of the fuel type your vehicle requires.