Wrong fuel in your Audi RS7? Diesel in a Petrol Audi?

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Audi Fuel Drain


Putting Diesel in a Petrol Audi is a fairly typical problem. And its remedy hinges on several things. In case you would like to know what it is advisable to do about it then read on.
Right here are the main variables to be aware of when figuring out whether to get it drained:

  1. Exactly how much Diesel did you put into the Audi, bearing in mind that the fuel tank capacity of your Audi RS7 is most likely roughly 65 litres?
    1. A tiny amount of Diesel, less than 3.25 litres of Diesel in a Petrol RS7 will quite often not really be a big problem. Experience has taught us that anything less than 3.25 litres (which is roughly 5% of the whole fuel tank volume) is sometimes capable of being sufficiently diluted by means of entirely filling the rest of the tank with the right fuel.
      It is pretty uncommon to encounter a car or truck going through issues due to under 5% wrong fuel contamination. Keep in mind that it's uncommon - definitely not impossible to find. There are a number of vehicles that don't endure any level of contamination whatsoever.
    2. In between 3.25 and 6.5 litres of Diesel in the Audi (from 5 to 10%) is more of a 50/50 situation. Our experience has demonstrated that as many drivers get away with it as those who don't. When you are figuring out whether or not to risk it and just simply top it up remember that it is very much like gambling all of it on black - you have got a 50/50 chance of it being ok.
    3. Anything above 6.5 litres of Diesel in your Petrol RS7 should really promptly be drained as your likelihood of driving with this level of contamination is very likely less than one in 50 - truly long odds.
  2. Put Diesel in a Petrol Audi and drove it: Have you detected any kind of performance problems since putting the incorrect fuel in the RS7? In that case, get it removed regardless of the amount of Diesel or the contamination ratio. Continuing to drive driving a vehicle that is starting to suffer the effects of wrong fuel contamination can typically lead to more damage affecting the fuel system parts.
  3. Are you looking for security?
    Then simply just get it removed. Regardless of the contamination ratio, there is invariably some degree of threat in connection with driving a Petrol engine on fuel contaminated with the wrong fuel. Likely final outcomes of driving a car on the wrong fuel include things like the motor refusing to start, running lumpy, reduced power, wearing of the high-pressure pump, worn or blocked injectors, and the like. These are several of the most common Diesel in Petrol symptoms, and if you observe any of them stop and get it drained as soon as possible.

Do not just have any unqualified mechanic to attend your car. We are Audi specialists and hold the accreditation and experience needed to make certain that you are back on the road with no hassle or worry.

Put Diesel in a Petrol Audi

By mistake put Diesel in a Petrol Audi? Or perhaps even put contaminated fuel in your Audi RS7?

Contact us for Assistance & Recommendations

Call us and get honest advice and sensible help for your specific circumstances

We come out and do the fuel drain

We are able to reach you to do the full fuel removal & purge right there on scene

Once performed You Get Going Again

As soon as we are done you can get back on your way and get on with your day

Wrong Fuel Drain Specialists

We are the top rated wrong fuel drain specialists in the UK, having national cover, for Audi motorists particularly. We mainly attend to:

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

We are Audi specialists and have successfully drained hundreds of Petrol Audi vehicles. Even if it's roadside, on a filling station forecourt, or even at home, we are able to get you moving again.

The Process

The system of draining Diesel from a Petrol car is generally exactly the same for most cars. Needless to say it does differ somewhat as every brand has their unique distinct fuel system. However it still follows the below points:

Petrol in Diesel Audi

Fuel Drain

Empty the Fuel Tank

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Wrong Fuel Drain Audi

System Flush

Clean out the fuel lines & pumps

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Petrol in Diesel Drain Audi

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.

Contact Us

Should you have any concerns or require our help please Contact Us!
We are able to get you going once again.

24 hour Audi Helpline

0333 366 0103

Our Corporate Office

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


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