Wrong fuel in a Volkswagen Passat TSI? Diesel in a Petrol Volkswagen?

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Volkswagen Fuel Drain


Putting Diesel in a Petrol Volkswagen is a regularly occurring problem. And what you need to do about it is based on a few factors. If you would like to know what you have to do about it then continue reading.
These are the most important factors to consider whenever deciding on whether to get a fuel drain:

  1. How much Diesel have you put in the Volkswagen, taking into account that the fuel capacity of the Volkswagen Passat TSI is normally approximately 70 litres?
    1. Hardly any Diesel, as little as 3.5 litres of Diesel in a Petrol Passat TSI will normally not really be a big problem. Experience has shown us that quantities less than 3.5 litres (which is 5% of the overall fuel tank) is quite often able to be completely diluted simply by completely topping the remainder of the tank with Petrol.
      It's very uncommon to find a motor vehicle suffering from issues due to less than 5% wrong fuel contamination. Bear in mind that it is very unusual - not impossible to find. There are actually a number of cars that will not endure any degree of contamination at all.
    2. Anywhere between 3.5 and 7 litres of Diesel in the Volkswagen (from 5 to 10%) is more of a 50/50 scenario. Our experience has revealed that as many drivers get away with this as those people who break down. Any time you're deciding upon whether to risk it and simply top it up recognise that it is much like betting everything on black - you have got a 50/50 possibility of it being ok.
    3. Anything more than 7 litres of Diesel in your Petrol Passat TSI should promptly be drained because your probability of getting away with that amount of contamination is more than likely lower than one in 50 - truly long odds.
  2. Put Diesel in a Petrol Volkswagen and drove it: Have you seen any kind of performance concerns since putting the wrong fuel in your Passat TSI? If you have, have it removed no matter the quantity of Diesel or the contamination percentage. Proceeding to drive running a vehicle that is currently starting to suffer from the effect of fuel contamination can typically result in more and more damage being done to the fuel system parts.
  3. Are you looking for security?
    Then get it drained. Regardless of contamination percentage, there is inevitably some amount of risk connected to driving a Petrol vehicle on fuel contaminated with the wrong fuel. Likely final outcomes of driving on the wrong fuel normally include the motor refusing to start, running unevenly, loss of power, degradation of the high-pressure pump, damaged or blocked injectors, and so forth. These are some of the most common Diesel in Petrol symptoms, and should you notice any of them then stop driving and get it removed right now.

Don't just have any jack-of-all-trades to try to fix your automobile. We are Volkswagen experts and hold the certification and experience necessary to make certain you are back on the road with a minimum of hassle or worry.

Put Diesel in a Petrol Volkswagen

Accidentally put Diesel in a Petrol Volkswagen? Or perhaps even put contaminated fuel in your Volkswagen Passat TSI?

Give us a call for Help & Recommendations

Contact us and receive straightforward advice and practical assistance for your exact circumstance

We come out and drain it

We are able to reach you to perform the complete fuel retrieval & cleanse there on scene

Once completed You Get Going Once again

As soon as we are done you should be able to get back on the road and get on with your trip

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain professionals in the UK, boasting national cover, for Volkswagen motorists in particular. We mainly attend to:

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

We are Volkswagen specialists and have successfully drained hundreds of Petrol Volkswagen vehicles. Whether or not it is at the roadside, on a filling station forecourt, or even at your home, we are able to get you going again.

The Process

The system of draining Diesel from a Petrol car is generally the same for the majority of vehicle makes. Needless to say it may vary to some extent as every make has their unique different fuel system. Even so it still basically adheres to the following points:

Petrol in Diesel Volkswagen

Fuel Drain

Empty the Fuel Tank

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Wrong Fuel Drain Volkswagen

System Flush

Clean out the fuel lines & pumps

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Petrol in Diesel Drain Volkswagen

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.

Get in Touch

In the event that you have any concerns or want our assistance please Call us!
We can get you going once again.

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0333 366 0103

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

Weekdays: 9am to 5pm

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