Incorrect fuel in your Ford Focus C-Max? Diesel in your Petrol Ford?

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Ford Fuel Drain


Putting Diesel in a Petrol Ford is a fairly typical mistake to make. And what you have to do about it varies according to various factors. Assuming you would like to know what you have to do to sort it out then keep on reading.
Here are the most crucial variables to be aware of when deciding whether or not to have your car drained:

  1. What level of Diesel did you put in to the Ford, bearing in mind that the fuel capacity of the Ford Focus C-Max is usually approximately 55 litres?
    1. Hardly any Diesel, as little as 2.75 litres of Diesel in a Petrol Focus C-Max will most of the time not be a big problem. Experience has proven to us that quantities under 2.75 litres (approximately 5% of the entire fuel tank capacity) is generally capable of being sufficiently diluted through completely topping up the rest of the tank with the appropriate fuel.
      It's quite uncommon to encounter a car or truck suffering from problems with less than 5% incorrect fuel contamination. Bear in mind that it is infrequently found - in no way impossible to find. There are certain vehicles that will not endure any degree of contamination whatsoever.
    2. In between 2.75 and 5.5 litres of Diesel in the Ford (from 5 to 10%) is a 50/50 condition. Our practical experience has proven that as many people get away with this as those who break down. Any time you're trying to decide whether to chance it and just top it up consider that it is just like wagering everything on black - you've got a 50/50 chance of it working.
    3. Anything more than 5.5 litres of Diesel in a Petrol Focus C-Max should immediately be drained out because your likelihood of succeeding with this level of contamination is almost certainly less than one in fifty - definitely huge odds.
  2. Put some Diesel in a Petrol Ford and drove it: Have you noted any performance troubles ever since putting the bad fuel in your Focus C-Max? In that case, have it removed irrespective of the volume of Diesel or the contamination ratio. Still running an automobile that is currently starting to suffer the effect of wrong fuel contamination will probably just be responsible for more and more damage being caused to your fuel system.
  3. Are you interested in security?
    In that case get it drained. Whatever the contamination ratio, there is inevitably some degree of danger affiliated with running a Petrol vehicle on Petrol contaminated with the incorrect fuel. Likely outcomes of driving on the wrong fuel can include the motor refusing to start, running lumpy, decrease in power, degradation of the high-pressure pump, worn or blocked injectors, and so forth. These are several of the most common Diesel in Petrol signs or symptoms, and in the event that you recognise any of them cease driving and get it removed as soon as possible.

Refrain from getting any unqualified mechanic to attend your vehicle. We are Ford experts and have got the skills and practical experience necessary to make certain you get back on the road with little hassle or trouble.

Put Diesel in a Petrol Ford

Unintentionally put Diesel in a Petrol Ford? Or perhaps even put contaminated fuel in your Ford Focus C-Max?

Give us a call for Help & Recommendations

Give us a call and receive sincere guidance and sensible assistance for your specific situation

We come out and drain it

We would come to you to perform the full fuel retrieval & purge right there on scene

Once carried out You Get Moving Once again

Once we are done you will be able to get back on the road and get on with your trip

Wrong Fuel Drain Specialists

We are the top rated wrong fuel drain professionals in the UK, having national service, for Ford motorists especially. We mainly attend to:

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

We are Ford specialists and have successfully drained thousands of Petrol Ford vehicles. Whether or not it's at the roadside, on a station forecourt, or even at your house, we can get you going once again.

The Procedure

The process of extracting Diesel from a Petrol car is fundamentally identical for most vehicles. Of course it may differ slightly as each brand has their particular distinct fuel system. However it still fundamentally observes the following guidelines:

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 concerns or need some assistance please Contact Us!
We are able to get you moving again.

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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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