Contaminated fuel in a Audi S6? Diesel in your Petrol Audi?

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


Putting Diesel in a Petrol Audi is a regularly occurring error. And its solution is based on a few things. Assuming you want to know what you have to do to sort it out then continue reading.
Right here are the most important factors to think about whenever figuring out whether to have it drained:

  1. How much Diesel did you put into the Audi, taking into consideration that the fuel tank capacity of your Audi S6 is probably about 80 litres?
    1. A modest amount of Diesel, something like 4 litres of Diesel in a Petrol S6 will generally not necessarily be a major problem. Experience has taught us that quantities under 4 litres (which is approximately 5% of the total fuel tank) is very often capable of being completely diluted by means of wholly topping the rest of the tank with Petrol.
      It is relatively unusual to find an automobile having problems with lower than 5% wrong fuel contamination. Be aware that it is uncommon - certainly not impossible to find. You can get a number of automobiles that will not endure any amount of contamination at all.
    2. Anywhere between 4 and 8 litres of Diesel in the Audi (5 to 10%) is a 50/50 situation. Our expertise demonstrates that as many motorists get away with this as those who don't. Whenever you are deciding whether to chance it and just simply top it up recognise that it is the same thing as wagering it all on black - you will have a 50/50 chance of it working.
    3. Anything above 8 litres of Diesel in your Petrol S6 ought to promptly be drained since your probability of getting away with this level of contamination is more than likely below one in fifty - genuinely long odds.
  2. Put Diesel in a Petrol Audi and drove it: Have you observed any performance troubles since putting the incorrect fuel in the S6? If that's the case, have it removed irrespective of the quantity of Diesel or even the contamination ratio. Continually running a car that is currently beginning to suffer the effect of wrong fuel contamination will only end up in more and more harm being caused to the fuel system parts.
  3. Do you want assurance?
    Then get it removed. Regardless of the contamination percentage, there is invariably some degree of risk connected with operating a Petrol engine on fuel contaminated with Diesel. Possible results of driving a car on the incorrect fuel include things like the engine not starting, running unevenly, losing power, wearing of the high-pressure pump, worn or bunged injectors, and the like. These are some of the most typical Diesel in Petrol signs or symptoms, and if you recognise any of them stop and get it drained right away.

Keep away from having any unqualified mechanic to attend your automobile. We are Audi specialists and hold the certification and expertise necessary to make sure that you get back on the road with no hassle or worry.

Put Diesel in a Petrol Audi

Mistakenly put Diesel in a Petrol Audi? Or even put contaminated fuel in your Audi S6?

Give us a call for Assistance & Guidance

Give us a call and receive honest advice and practical help for your particular circumstances

We show up and do a fuel drain

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

All done & You Get Moving Once again

As soon as we have completed you are able to get back moving and get on with your trip

Wrong Fuel Drain Specialists

We are the leading wrong fuel drain professionals in the UK, having national cover, for Audi motorists especially. We primarily fix:

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

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

The Process

The method of getting rid of Diesel from a Petrol vehicle is fundamentally similar for virtually all motor vehicles. Of course it may vary to some degree as each manufacturer has their particular distinct fuel system. Nevertheless it still basically follows the below guidelines:

Petrol in Diesel Audi

Fuel Drain

Empty the Fuel Tank

View more
Wrong Fuel Drain Audi

System Flush

Clean out the fuel lines & pumps

View more
Petrol in Diesel Drain Audi

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

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.

Contact Us

In the event that you have any questions or need assistance please Call us!
We can get you on the road once again.

24 hour Audi Helpline

0333 366 0103

Our Corporate Office

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

Important Info

Fully Insured

VAT Registered

APEX Certified


Fully Mobile

Professionally Trained