Wrong fuel in a Ford Mondeo? Diesel in your Petrol Ford?

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Ford Fuel Drain


Putting Diesel in a Petrol Ford is a well-known error. And what you should do about it is determined by a number of factors. If you want to know what you have to do to fix it then keep reading.
Listed here are the most important variables to be aware of when deciding on whether to have your car drained:

  1. How much Diesel have you put in to the Ford, considering that the fuel tank capacity of your Ford Mondeo is normally roughly 70 litres?
    1. A tiny amount of Diesel, something like 3.5 litres of Diesel in a Petrol Mondeo will in most situations not really be a huge problem. Experience has proven to us that an amount less than 3.5 litres (close to 5% of the entire fuel tank) is usually able to be completely diluted through totally topping up the rest of the tank with Petrol.
      It is extremely unusual to find a vehicle having difficulties because of lower than 5% incorrect fuel contamination. Please remember it's infrequently found - in no way impossible to encounter. You can get a few vehicles that don't stand any amount of fuel contamination in the slightest.
    2. Between 3.5 and 7 litres of Diesel in the Ford (5 to 10%) is really a 50/50 condition. Our practical experience has shown us that as many motorists get away with it as those people who break down. Whenever you are deciding whether or not to chance it and just simply top it up recognise that it is exactly like wagering all of it on black - you have a 50/50 possibility of it working out.
    3. Anything more than 7 litres of Diesel in your Petrol Mondeo should promptly be drained out seeing as your probability of driving with this quantity of contamination is almost certainly lower than one in 50 - really huge odds.
  2. Put some Diesel in a Petrol Ford and drove it: Have you noted any kind of performance concerns since putting the wrong fuel in your Mondeo? If so, get it drained no matter the volume of Diesel or the contamination ratio. Continuing to run running an automobile that is currently starting to suffer the effect of fuel contamination can typically end up in more and more damage affecting the fuel system.
  3. Do you need security?
    In that case get it removed. Whatever the contamination ratio, there is always some degree of threat linked with operating a Petrol engine on Petrol contaminated with Diesel. Likely implications of driving a car on the wrong fuel can include the engine refusing to start, running lumpy, decrease in power, wearing of the high-pressure pump, worn out or blocked injectors, and the like. These are some of the commonest Diesel in Petrol signs or symptoms, and in the event that you detect any of them stop and have it drained asap.

Steer clear of getting any jack-of-all-trades to try to fix your vehicle. We are Ford experts and possess the skills and working experience needed to ensure that you are back on the road with no hassle or worry.

Put Diesel in a Petrol Ford

Unintentionally put Diesel in a Petrol Ford? Or possibly even put contaminated fuel in your Ford Mondeo?

Call us for Help & Advice

Contact us and get honest guidance and sensible assistance for your exact circumstance

We arrive and drain it

We can go to you to do the full contaminated fuel removal & flush right there on scene

Once performed You Get Going Once again

As soon as we have completed you can get back on your way and get on with your day

Wrong Fuel Drain Specialists

We are the top rated wrong fuel drain experts in the UK, offering national coverage, for Ford motorists in particular. We primarily attend:

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

We are Ford specialists and have successfully drained hundreds of Petrol Ford vehicles. No matter if it's roadside, on a filling station forecourt, or even at your home, we are able to get you going once again.

The Procedure

The method of draining Diesel from a Petrol car is generally exactly the same for the vast majority of motor vehicles. Naturally it does vary to some degree as each make has their unique fuel system. Nevertheless it still essentially observes the following points:

Petrol in Diesel Ford

Fuel Drain

Empty the Fuel Tank

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Wrong Fuel Drain Ford

System Flush

Clean out the fuel lines & pumps

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Petrol in Diesel Drain Ford

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 questions or need our help please Call us!
We can get you moving again.

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0333 366 0103

Our Corporate Office

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


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