Incorrect fuel in a Porsche 911 Carrera? Diesel in your Petrol Porsche?

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Porsche Fuel Drain


Putting Diesel in a Petrol Porsche is a well-known mistake. And what you need to do about it will depend on a variety of factors. In case you want to find out what you should do to fix it then keep on reading.
Let us discuss the most crucial variables to think about when deciding whether to have your car drained:

  1. What amount of Diesel did you put in to the Porsche, taking into consideration that the fuel tank capacity of the Porsche 911 Carrera is normally roughly 64 litres?
    1. A tiny quantity of Diesel, less than 3.2 litres of Diesel in a Petrol 911 Carrera will usually not be a significant problem. Experience has taught us that anything under 3.2 litres (which is approximately 5% of the total fuel tank) is usually able to be completely diluted simply by completely filling up the rest of the tank with the correct fuel.
      It is quite unusual to come across a motor vehicle having difficulties due to less than 5% incorrect fuel contamination. Please remember it is very infrequently found - in no way impossible to encounter. There are certain cars that will not stand any quantity of fuel contamination whatsoever.
    2. Anywhere between 3.2 and 6.4 litres of Diesel in the Porsche (from 5 to 10%) is a 50/50 situation. Our expertise has demonstrated that as many motorists get away with this as all those who don't. Any time you are figuring out whether or not to chance it and basically top it up bear in mind that it is exactly like gambling your car on black - you have got a 50/50 chance of it working.
    3. Anything more than 6.4 litres of Diesel in a Petrol 911 Carrera ought to as soon as possible be removed since your probability of getting away with that level of contamination is almost certainly lower than one in fifty - extremely huge odds.
  2. Put some Diesel in a Petrol Porsche and drove it: Have you spotted any kind of performance concerns as a result of putting the wrong fuel in your 911 Carrera? If so, get it drained regardless of the volume of Diesel or the contamination ratio. Continuing to run driving a motor vehicle that is currently beginning to suffer from the effects of wrong fuel contamination can just be responsible for progressively more harm affecting the fuel system parts.
  3. Would you like reassurance?
    In that case get it removed. Whatever the contamination percentage, there is always some amount of threat associated with driving a Petrol engine on Petrol contaminated with the wrong fuel. Possible results of driving a car on the wrong fuel can include the motor refusing to start, running lumpy, decrease in power, wearing of the high-pressure pump, worn or bunged injectors, etc. These are several of the commonest Diesel in Petrol warning signs, and if you recognise any of them stop and have it removed immediately.

Refrain from having any jack-of-all-trades to attend your car. We are Porsche experts and have got the credentials and working experience required to make certain that you get back on the road with little hassle or trouble.

Put Diesel in a Petrol Porsche

By mistake put Diesel in a Petrol Porsche? Or possibly even put contaminated fuel in your Porsche 911 Carrera?

Contact us for Assistance & Advice

Call us and obtain sincere guidance and practical help for your particular circumstance

We come out and do a fuel drain

We would go to you to perform the full contaminated fuel retrieval & purge right there on scene

Once carried out You Get Moving Again

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

Wrong Fuel Drain Specialists

We are the leading wrong fuel drain authorities in the UK, having nationwide coverage, for Porsche motorists particularly. We mostly deal with:

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

We are Porsche specialists and have successfully drained hundreds of Petrol Porsche vehicles. Whether it's at the roadside, on a station forecourt, or even at home, we can get you moving once again.

The Process

The system of draining Diesel from a Petrol vehicle is in essence the same for most cars. Obviously it can vary slightly as each brand has their own fuel system. Nevertheless it still fundamentally follows the below points:

Petrol in Diesel Porsche

Fuel Drain

Empty the Fuel Tank

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Wrong Fuel Drain Porsche

System Flush

Clean out the fuel lines & pumps

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Petrol in Diesel Drain Porsche

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

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

24/7 Porsche 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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