Incorrect fuel in your Citroen C5 HDi? Petrol in your Diesel Citroen?

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Citroen Fuel Drain


Putting Petrol in a Diesel Citroen is a regularly occurring mistake to make. And its solution depends on several different things. If perhaps you want to know what it is advisable to do about it then stay with me.
These are the most important variables to take into account whenever deciding whether or not to have your car drained:

  1. How much Petrol have you put in the Citroen, considering that the fuel tank capacity of your Citroen C5 HDi is most likely approximately 68 litres?
    1. A tiny quantity of Petrol, as little as 3.4 litres of Petrol in a Diesel C5 HDi will in most cases not be a massive problem. Experience has demonstrated to us that an amount under 3.4 litres (which is roughly 5% of the overall fuel tank volume) is in many instances capable of being adequately diluted simply by entirely filling up the tank with the correct fuel.
      It is rather uncommon to encounter a car going through problems with less than 5% wrong fuel contamination. Keep in mind that it is infrequent - in no way impossible to find. You can get certain motor vehicles that don't endure any degree of contamination at all.
    2. Anywhere between 3.4 and 6.8 litres of Petrol in the Citroen (5 to 10%) is really a 50/50 condition. Our expertise has shown that as many drivers get away with it as those who break down. When deciding whether or not to risk it and just top it up remember that it is the same as gambling your car on black - you have a 50/50 possibility of it working out.
    3. Anything in excess of 6.8 litres of Petrol in a Diesel C5 HDi should immediately be drained as your probability of getting away with this amount of contamination is more than likely lower than one in fifty - truly huge odds.
  2. Put Petrol in a Diesel Citroen and drove it: Have you spotted any performance troubles since putting the incorrect fuel in your C5 HDi? In that case, have it emptied irrespective of the volume of Petrol or even the contamination percentage. Continually running an automobile that is now starting to suffer the consequences of wrong fuel contamination can just end up in more damage affecting your fuel system components.
  3. Are you interested in assurance?
    Then simply just get it emptied. No matter the contamination percentage, there is always some degree of danger connected to operating a Diesel engine on Diesel contaminated with Petrol. Possible outcomes of driving a vehicle on the wrong fuel include the engine refusing to start, running lumpy, loss in power, degradation of the high-pressure pump, worn out or clogged injectors, etc. These are a few of the commonest Petrol in Diesel warning signs, and in the event that you recognise any of them stop and have it removed as soon as possible.

Do not just have any unqualified mechanic to try to fix your vehicle. We are Citroen specialists and have the credentials and knowledge needed to make sure that you get back on the road with minimal hassle or worry.

Put Petrol in a Diesel Citroen

Inadvertently put Petrol in a Diesel Citroen? Or even put contaminated fuel in your Citroen C5 HDi?

Give us a call for Help & Advice

Give us a call and receive sincere advice and sensible help for your exact circumstance

We arrive and drain it

We are able to reach you to undertake the contaminated fuel drain & clean right there on scene

All done & You Get Moving Once again

As soon as we are done you can get back on your way and get on with your trip

Wrong Fuel Drain Specialists

We are the leading wrong fuel drain experts in the UK, offering countrywide coverage, for Citroen motorists in particular. We predominantly attend:

  • Unleaded petrol in Diesel Car
  • Diesel in Unleaded Petrol Auto
  • AdBlue contamination
  • Water contamination

We are Citroen specialists and have successfully drained thousands of Diesel Citroen vehicles. Whether it's roadside, on a station forecourt, or even at home, we are able to get you going once again.

The Process

The system of extracting Petrol from a Diesel vehicle is in essence exactly the same for most vehicles. Obviously it does differ a bit as each manufacturer has their unique different fuel system. Even so it still fundamentally adheres to the following principles:

Petrol in Diesel Citroen

Fuel Drain

Empty the Fuel Tank

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Wrong Fuel Drain Citroen

System Flush

Clean out the fuel lines & pumps

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Petrol in Diesel Drain Citroen

Vehicle Restart

Get the car up and running again

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Petrol in Diesel Questions

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

I put Petrol in a Diesel 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 Diesel car on Petrol 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 Petrol can I get away with in a Diesel 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 Diesel 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.

Get in Touch

If you have any concerns or require our help please Call us!
We can get you moving again.

24 hour Citroen Helpline

0333 366 0103

Our Business Office

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

Weekdays: 9am to 5pm

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