Incorrect fuel in your Citroen Zx? Diesel in your Petrol Citroen?

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Citroen Fuel Drain


Filling up with Diesel in a Petrol Citroen is a fairly typical mistake. And exactly what you want to do about it varies according to an assortment of things. If perhaps you want to know what it is best to do about this then read on.
These are the most important factors to keep in mind when making a decision whether or not to have the car drained:

  1. Exactly how much Diesel have you put in to the Citroen, taking into consideration that the fuel tank capacity of your Citroen Zx is in most cases roughly 56 litres?
    1. A small quantity of Diesel, less than 2.8 litres of Diesel in a Petrol Zx will typically not necessarily be a major problem. Experience has shown us that quantities less than 2.8 litres (which is roughly 5% of the fuel tank) is very often capable of being sufficiently diluted simply by thoroughly topping up the tank with Petrol.
      It's extremely uncommon to come across an automobile having issues because of less than 5% wrong fuel contamination. Please remember it is rare - not impossible to find. There are a few cars that will not stand any amount of contamination at all.
    2. In between 2.8 and 5.6 litres of Diesel in the Citroen (from 5 to 10%) is a 50/50 condition. Our practical experience has demonstrated that as many drivers get away with this as those people who break down. Whenever trying to decide whether to chance it and just simply fill it up remember that it is just like gambling your car on black - you've got a 50/50 chance of it being ok.
    3. Anything in excess of 5.6 litres of Diesel in your Petrol Zx should really promptly be removed as your probability of getting away with this amount of contamination is more than likely less than one in 50 - genuinely long odds.
  2. Put Diesel in a Petrol Citroen and drove it: Have you spotted any performance concerns as a result of putting the wrong fuel in the Zx? If you have, get it removed irrespective of the amount of Diesel or even the contamination ratio. Proceeding to run running a motor vehicle that is currently beginning to suffer the effects of fuel contamination will typically cause progressively more damage being done to your fuel system parts.
  3. Are you looking for reassurance?
    Then simply just get it drained. Regardless of contamination ratio, there is always some degree of threat affiliated with operating a Petrol motor on Petrol contaminated with Diesel. Probable implications of driving on the incorrect fuel include the motor refusing to start, running lumpy, lack of power, degradation of the high-pressure pump, worn or blocked injectors, etc. These are several of the most common Diesel in Petrol signs or symptoms, and if you notice any of them stop and get it removed right now.

Do not simply get any jack-of-all-trades to try to drain your car. We are Citroen experts and have the accreditation and expertise necessary to make sure that you are back on the road with minimal hassle or worry.

Put Diesel in a Petrol Citroen

Unintentionally put Diesel in a Petrol Citroen? Or possibly even put contaminated fuel in your Citroen Zx?

Call us for Assistance & Guidance

Give us a call and get honest recommendations and sensible assistance for your precise circumstance

We show up and drain it

We are able to reach you to do the full contaminated fuel drain & purge right there on scene

Once done You Get Going Again

When we are done you are able to get back on the road and get on with your day

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain authorities in the UK, having nationwide coverage, for Citroen motorists especially. We principally attend:

  • Unleaded petrol in Diesel Vehicle
  • Diesel in Unleaded Petrol Auto
  • AdBlue fuel contamination
  • Water fuel contamination

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

The Process

The technique of removing Diesel from a Petrol vehicle is fundamentally identical for a large number of vehicles. Needless to say it does vary somewhat as each make has their own different fuel system. Having said that it still essentially observes the below points:

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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Diesel in Petrol FAQs

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.

Get in Touch

In case you have any concerns or need our assistance please Contact Us!
We are able to get you on the road again.

24/7 Citroen Helpline

0333 366 0103

Our Corporate Office

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

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