Wrong fuel in your Daihatsu Copen? Diesel in your Petrol Daihatsu?

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Daihatsu Fuel Drain


Putting Diesel in a Petrol Daihatsu is a regular mistake to make. And its remedy varies according to a few factors. If you want to know what it is best to do about it then stay with me.
These are the most crucial variables to be aware of when determining whether or not to have a fuel drain:

  1. Exactly how much Diesel did you put in to the Daihatsu, bearing in mind that the fuel capacity of your Daihatsu Copen is in most cases about 40 litres?
    1. Hardly any Diesel, as little as 2 litres of Diesel in a Petrol Copen will more often than not not really be a massive problem. Experience has demonstrated to us that an amount less than 2 litres (which is roughly 5% of the entire fuel tank) is in many instances capable of being completely diluted by totally filling the remainder of the tank with the appropriate fuel.
      It is relatively uncommon to come across a car suffering from issues due to below 5% wrong fuel contamination. Keep in mind that it is very infrequent - certainly not impossible to find. You can get a number of vehicles that don't stand any level of fuel contamination at all.
    2. Anywhere between 2 and 4 litres of Diesel in the Daihatsu (5 to 10%) is a 50/50 scenario. Our working experience has confirmed that as many drivers get away with this as all those who break down. Whenever deciding whether or not to chance it and simply top it up bear in mind that it is exactly like gambling your car on black - you will have a 50/50 chance of it working out.
    3. Anything above 4 litres of Diesel in your Petrol Copen must straight away be removed since your probability of driving with that amount of contamination is almost certainly lower than one in 50 - genuinely big odds.
  2. Put Diesel in a Petrol Daihatsu and drove it: Have you noticed any kind of performance concerns ever since putting the bad fuel in your Copen? If that's the case, get it drained irrespective of the volume of Diesel or even the contamination percentage. Continuing to drive driving a car that is starting to suffer from the effect of fuel contamination will only cause increasing amounts of harm being caused to the fuel system parts.
  3. Do you need peace of mind?
    You should get it removed. Regardless of contamination percentage, there is invariably some amount of threat in connection with running a Petrol engine on fuel contaminated with Diesel. Possible final outcomes of driving a vehicle on the incorrect fuel include things like the motor refusing to start, running lumpy, loss in power, wearing of the high-pressure pump, damaged or blocked injectors, and so forth. These are a few of the most frequently seen Diesel in Petrol signs or symptoms, and should you notice any of them cease driving and have it drained asap.

Don't just have any unqualified mechanic to attend your automobile. We are Daihatsu experts and have got the accreditation and expertise necessary to make certain you get back on the road with no hassle or trouble.

Put Diesel in a Petrol Daihatsu

By mistake put Diesel in a Petrol Daihatsu? Or perhaps even put contaminated fuel in your Daihatsu Copen?

Call us for Assistance & Recommendations

Give us a call and obtain honest advice and practical help for your particular circumstances

We arrive and do a fuel drain

We can reach you to undertake the complete fuel retrieval & cleanse right there on scene

All done & You Get Moving Once again

Once we have completed you are able to get back on your way and get on with your trip

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain authorities in the UK, boasting countrywide service, for Daihatsu motorists particularly. We mostly attend to:

  • Unleaded petrol in a Diesel Vehicle
  • Diesel in an Unleaded Petrol Car
  • AdBlue contamination
  • Water fuel contamination

We are Daihatsu specialists and have successfully drained thousands of Petrol Daihatsu vehicles. No matter if it is at the roadside, on a station forecourt, or even at home, we are able to get you on the road once again.

The Procedure

The system of removing Diesel from a Petrol vehicle is in essence identical for virtually all motor vehicles. Needless to say it does differ slightly as each manufacturer has their unique fuel system. Having said that it still basically observes the below points:

Petrol in Diesel Daihatsu

Fuel Drain

Empty the Fuel Tank

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Wrong Fuel Drain Daihatsu

System Flush

Clean out the fuel lines & pumps

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Petrol in Diesel Drain Daihatsu

Vehicle Restart

Get the car up and running again

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Diesel in Petrol Questions

When someone has put Diesel in a Petrol car they have a few very common questions. So we have compiled a list of the most Frequently Asked Questions for you

I put Diesel in a Petrol car and drove it. What do I do?


Turn off the car as soon as possible and call us. Continuing to run a vehicle on the wrong fuel can potentially damage it. We will be able to give you advice and assistance based on your circumstances

Will driving a Petrol car on Diesel cause damage to it?


It can. However, if the problem is caught and remedied quickly the risks will be minimal. Of the 1,500 vehicles we attend every month, less than 0.5% have suffered and substantial damage requiring parts replacement.

How much Diesel can I get away with in a Petrol car?


The safe answer is none. However you might be able to get away with a very low contamination ratio. That being said, we always highly recommend draining anything over a 5% contamination ratio asap.

I know about petrol in diesel, but what about Super Unleaded?


Putting Super Unleaded, or Shell V-Power, BP Ultimate Unleaded, etc, will have the exact same effect as putting regular unleaded petrol in your diesel car and will need to be drained out and flushed.

Will getting you to do a fuel drain void my warranty?


No! The EU Block Exemption Regulations clearly state that "the work can be carried out by as long as that garage uses manufacturer approved parts and correctly follows the manufacturer's service schedule."

Can I top it up with Petrol and add some 2-stroke oil?


This might work on some vehicles in some cases, but in the majority on instances it won't and you risk damaging the Lambda sensors as well as fuel pump and injectors, just as a regular misfuel.

Contact Us

In the event that you have any questions or require help please Contact Us!
We can get you moving again.

24/7 Daihatsu Helpline

0333 366 0103

Our Corporate Office

Fuel Fixer Ltd, Linx House, 147 London Road, East Grinstead, RH19 1ET


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