Bad fuel in your Audi A8? Diesel in your Petrol Audi?

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Audi Fuel Drain


Filling up with Diesel in a Petrol Audi is a very common problem. And exactly what you should do about it depends upon several different factors. Assuming you want to find out what you ought to do to fix it then continue reading.
Here are the most crucial factors to be aware of whenever figuring out whether or not to have a fuel drain:

  1. How much Diesel did you put in to the Audi, taking into consideration that the fuel tank capacity of the Audi A8 is usually roughly 80 litres?
    1. Hardly any Diesel, less than 4 litres of Diesel in a Petrol A8 will generally not necessarily be a huge problem. Experience has shown us that an amount less than 4 litres (which is almost 5% of the overall fuel tank capacity) is usually capable of being adequately diluted by totally topping the remainder of the tank with the right fuel.
      It's very unusual to come across a car or truck having problems due to under 5% wrong fuel contamination. Keep in mind it is uncommon - not impossible to encounter. There are a number of automobiles that won't stand any amount of fuel contamination in the slightest.
    2. In between 4 and 8 litres of Diesel in the Audi (5 to 10%) is more of a 50/50 scenario. Our working experience has proven that as many motorists get away with it as those people who break down. Whenever you are trying to decide whether to chance it and just simply fill it up consider that it is very much like wagering it all on black - you will have a 50/50 chance of it working out.
    3. Anything above 8 litres of Diesel in your Petrol A8 must as soon as possible be drained out since your probability of getting away with that quantity of contamination is very likely less than one in 50 - extremely huge odds.
  2. Put Diesel in a Petrol Audi and drove it: Have you seen any performance issues after putting the incorrect fuel in the A8? If you have, have it removed irrespective of the amount of Diesel or even the contamination percentage. Continuing to drive running a car that is now beginning to suffer from the effect of wrong fuel contamination will probably definitely end up in more harm affecting your fuel system.
  3. Do you need security?
    You should get it emptied. No matter the contamination ratio, there is invariably a certain level of threat associated with running a Petrol engine on fuel contaminated with the incorrect fuel. Possible final outcomes of driving on the wrong fuel include the motor not starting, running unevenly, lack of power, degradation of the high-pressure pump, damaged or blocked injectors, and so on. These are several of the most common Diesel in Petrol symptoms, and in the event that you detect any of them stop and have it drained asap.

Don't just get any unqualified mechanic to attend your vehicle. We are Audi experts and have got the certification and practical experience required to make sure that you get back on the road with a minimum of hassle or trouble.

Put Diesel in a Petrol Audi

Mistakenly put Diesel in a Petrol Audi? Or possibly even put contaminated fuel in your Audi A8?

Give us a call for Help & Recommendations

Call us and obtain straightforward recommendations and practical help for your precise situation

We show up and do a fuel drain

We are able to go to you to do the complete fuel removal & clean right there on scene

Once performed You Get Moving Once again

When we are done you are able to get back moving and get on with your day

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain authorities in the UK, having nationwide coverage, for Audi motorists especially. We primarily attend:

  • Unleaded petrol in a Diesel Vehicle
  • Diesel in an 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 petrol station forecourt, or even at your house, we can get you moving again.

The Procedure

The procedure of draining Diesel from a Petrol car is generally similar for a large number of motor vehicles. As you can imagine it does vary to some degree as each make has their particular distinct fuel system. Having said that it still adheres to the following principles:

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 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 case you have any concerns or want help please Call us!
We can get you going once again.

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0333 366 0103

Our Corporate Office

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

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