Bad fuel in your Seat Leon Cupra? Diesel in your Petrol Seat?

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Seat Fuel Drain


Putting Diesel in a Petrol Seat is a well-known mistake to make. And its remedy hinges on an assortment of factors. Assuming you would like to find out what to do about it then keep on reading.
Listed below are the key factors to to consider whenever deciding on whether or not to get a fuel drain:

  1. What level of Diesel did you put in to the Seat, taking into account that the fuel tank capacity of your Seat Leon Cupra is probably approximately 55 litres?
    1. Hardly any Diesel, less than 2.75 litres of Diesel in a Petrol Leon Cupra will quite often not be a major problem. Experience has shown us that an amount under 2.75 litres (which is 5% of the entire fuel tank volume) is in many instances able to be completely diluted simply by completely filling the rest of the tank with the correct fuel.
      It is relatively unusual to come across a car or truck having problems due to under 5% wrong fuel contamination. Keep in mind it is infrequent - certainly not impossible to find. There are actually a number of cars that don't stand any quantity of fuel contamination at all.
    2. Between 2.75 and 5.5 litres of Diesel in the Seat (5 to 10%) is more of a 50/50 condition. Our working experience demonstrates that as many motorists get away with this as all those who break down. Any time you are deciding on whether to chance it and basically top it up remember that it is much like betting all of it on black - you have got a 50/50 possibility of it working out.
    3. Anything in excess of 5.5 litres of Diesel in your Petrol Leon Cupra should really straight away be drained since your likelihood of succeeding with that level of contamination is very likely below one in 50 - really big odds.
  2. Put Diesel in a Petrol Seat and drove it: Have you noted any kind of performance concerns as a result of putting the wrong fuel in your Leon Cupra? If that's the case, have it removed regardless of the amount of Diesel or the contamination ratio. Still driving an automobile that is now starting to suffer from the consequences of wrong fuel contamination will probably only be responsible for increasing amounts of harm being caused to your fuel system parts.
  3. Would you like security?
    Then get it removed. No matter the contamination ratio, there is inevitably some amount of threat caused by operating a Petrol vehicle on fuel contaminated with Diesel. Probable outcomes of driving a vehicle on the wrong fuel can include the engine refusing to start, running unevenly, loss of power, wearing of the high-pressure pump, damaged or blocked injectors, and so on. These are a few of the most typical Diesel in Petrol symptoms, and in the event that you detect any of them then stop driving and have it drained right now.

Don't just get any unqualified so-and-so to attend your car. We are Seat experts and hold the accreditation and knowledge needed to make certain that you are back on the road with little hassle or trouble.

Put Diesel in a Petrol Seat

Accidentally put Diesel in a Petrol Seat? Or perhaps even put contaminated fuel in your Seat Leon Cupra?

Contact us for Assistance & Guidance

Contact us and obtain genuine guidance and practical assistance for your precise circumstance

We show up and drain it

We are able to come to you to do the complete fuel retrieval & clean right there on scene

Once carried out You Get Going Again

As soon as we have completed you can get back on the road and get on with your trip

Wrong Fuel Drain Specialists

We are the leading wrong fuel drain professionals in the UK, offering nationwide coverage, for Seat motorists in particular. We primarily attend:

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

We are Seat specialists and have successfully drained thousands of Petrol Seat vehicles. Whether it's at the roadside, on a station forecourt, or even at your house, we can get you moving again.

The Process

The procedure of extracting Diesel from a Petrol vehicle is generally exactly the same for most cars. Obviously it does differ somewhat as every manufacturer has their unique distinct fuel system. Nevertheless it still fundamentally adheres to the below guidelines:

Petrol in Diesel Seat

Fuel Drain

Empty the Fuel Tank

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Wrong Fuel Drain Seat

System Flush

Clean out the fuel lines & pumps

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Petrol in Diesel Drain Seat

Vehicle Restart

Get the car up and running again

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Diesel in Petrol Questions

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.

Call us

Should you have any queries or require some help please Call us!
We can get you on the road once again.

24 hour Seat 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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