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

We can help!
Call us: 0333 366 0103
Ford Fuel Drain


Filling Petrol in a Diesel Ford is a regular mistake. And exactly what you have to do about it varies according to an assortment of factors. In case you would like to know what you must do about this then continue reading.
These are the key variables to take into consideration whenever making a decision whether or not to have a fuel drain:

  1. Exactly how much Petrol did you put in to the Ford, bearing in mind that the fuel tank capacity of the Ford Mondeo TDCi is in most cases about 70 litres?
    1. A small amount of Petrol, less than 3.5 litres of Petrol in a Diesel Mondeo TDCi will quite often not necessarily be a significant problem. Experience has demonstrated to us that quantities under 3.5 litres (approximately 5% of the fuel tank volume) is sometimes capable of being adequately diluted by means of wholly topping up the tank with Diesel.
      It is rather rare to come across a car or truck going through issues due to under 5% incorrect fuel contamination. Please remember it is infrequently found - in no way impossible to find. There are some vehicles that won't stand any quantity of fuel contamination whatsoever.
    2. In between 3.5 and 7 litres of Petrol in the Ford (5 to 10%) is really a 50/50 scenario. Our working experience has shown that as many drivers get away with this as those people who don't. When you are deciding on whether or not to risk it and simply fill it up consider that it is very much like gambling your car on black - you will have a 50/50 chance of it working.
    3. Anything more than 7 litres of Petrol in your Diesel Mondeo TDCi really should straight away be drained out as your likelihood of succeeding with that quantity of contamination is almost certainly lower than one in fifty - extremely big odds.
  2. Put some Petrol in a Diesel Ford and drove it: Have you seen any kind of performance difficulties ever since putting the bad fuel in the Mondeo TDCi? If so, get it removed no matter the amount of Petrol or the contamination ratio. Continually running a vehicle that is currently beginning to suffer from the effects of fuel contamination will likely bring about more harm being done to your fuel system.
  3. Would you like assurance?
    Then get it emptied. Regardless of the contamination ratio, there is always a certain level of threat resulting from driving a Diesel vehicle on Diesel contaminated with Petrol. Probable consequences of driving a vehicle on the wrong fuel normally include the motor refusing to start, running unevenly, loss of power, degradation of the high-pressure pump, worn or blocked injectors, and the like. These are a few of the most common Petrol in Diesel warning signs, and if you notice any of them stop and get it removed asap.

Do not simply have any unqualified so-and-so to attend your vehicle. We are Ford specialists and have got the credentials and practical experience required to make certain you are back on the road with minimal hassle or trouble.

Put Petrol in a Diesel Ford

Inadvertently put Petrol in a Diesel Ford? Or even put contaminated fuel in your Ford Mondeo TDCi?

Call us for Help & Guidance

Contact us and receive genuine advice and practical assistance for your precise circumstance

We arrive and drain it

We can come to you to carry out the complete fuel removal & cleanse right there on scene

All done & You Get Going Again

When we are done you should be able to get back on your way and get on with your trip

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain specialists in the UK, having national service, for Ford motorists in particular. We typically attend to:

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

We are Ford specialists and have successfully drained hundreds of Diesel Ford vehicles. Even if it is at the roadside, on a filling station forecourt, or even at home, we can get you going again.

The Process

The method of extracting Petrol from a Diesel car is basically identical for a large number of motor vehicles. As you can imagine it does vary to some degree as every brand has their particular different fuel system. Having said that it still adheres to the following principles:

Petrol in Diesel Ford

Fuel Drain

Empty the Fuel Tank

View more
Wrong Fuel Drain Ford

System Flush

Clean out the fuel lines & pumps

View more
Petrol in Diesel Drain Ford

Vehicle Restart

Get the car up and running again

View more


Hours a Day


Days a Week





Our Partners

Just some of the few people we work with to bring you the best petrol in diesel service possible

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

In case you have any enquiries or want assistance please Call us!
We can get you on the road once again.

24 hour Ford Helpline

0333 366 0103

Our Business Office

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

Weekdays: 9am to 5pm

Important Info

Fully Insured

VAT Registered

APEX Certified


Fully Mobile

Professionally Trained