Contaminated fuel in your Volvo S40? Diesel in your Petrol Volvo?

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Volvo Fuel Drain


Putting Diesel in a Petrol Volvo is a usual error. And what you should do about it is dependent upon a number of things. If perhaps you want to find out what it is best to do to sort it out then stay with me.
These are the most important variables to take into account whenever determining whether or not to get a fuel drain:

  1. What level of Diesel have you put in to the Volvo, considering that the fuel capacity of your Volvo S40 is probably about 60 litres?
    1. A modest amount of Diesel, as little as 3 litres of Diesel in a Petrol S40 will in most situations not be a significant problem. Experience has demonstrated to us that anything less than 3 litres (about 5% of the total fuel tank capacity) is usually able to be adequately diluted simply by entirely filling up the rest of the tank with Petrol.
      It's very unusual to encounter a vehicle suffering from problems with under 5% incorrect fuel contamination. Do not forget that it is infrequently found - not impossible to encounter. You can get a few cars that don't stand any level of fuel contamination whatsoever.
    2. In between 3 and 6 litres of Diesel in the Volvo (5 to 10%) is more of a 50/50 scenario. Our expertise has shown us that as many drivers get away with this as those people who don't. Whenever deciding on whether or not to risk it and just simply top it up recognise that it is the same thing as betting it all on black - you've got a 50/50 possibility of it working out.
    3. Anything more than 6 litres of Diesel in your Petrol S40 really should promptly be drained out since your probability of getting away with that quantity of contamination is certainly below one in 50 - extremely long odds.
  2. Put some Diesel in a Petrol Volvo and drove it: Have you seen any kind of performance issues as a result of putting the bad fuel in the S40? If you have, have it emptied irrespective of the quantity of Diesel or the contamination ratio. Continually driving a motor vehicle that is already beginning to suffer the consequences of wrong fuel contamination can likely cause more damage being done to your fuel system.
  3. Are you looking for security?
    You should get it emptied. No matter the contamination percentage, there is inevitably a certain level of threat affiliated with operating a Petrol engine on fuel contaminated with the incorrect fuel. Possible final outcomes of driving a car on the wrong fuel include the motor refusing to start, running lumpy, losing power, wearing of the high-pressure pump, worn or bunged injectors, etc. These are some of the most typical Diesel in Petrol signs and symptoms, and if you notice any of them stop and get it drained immediately.

Don't simply get any jack-of-all-trades to try to repair your automobile. We are Volvo experts and possess the skills and knowledge necessary to ensure that you are back on the road with little hassle or trouble.

Put Diesel in a Petrol Volvo

Unintentionally put Diesel in a Petrol Volvo? Or perhaps even put contaminated fuel in your Volvo S40?

Contact us for Help & Advice

Contact us and get sincere recommendations and sensible assistance for your precise situation

We show up and do the fuel drain

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

Once performed You Get Moving Once again

Once we are done you will be able to get back on the road and get on with your day

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain specialists in the UK, offering national cover, for Volvo motorists particularly. We mainly deal with:

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

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

The Procedure

The technique of extracting Diesel from a Petrol vehicle is essentially exactly the same for virtually all vehicle makes. Obviously it may vary slightly as every make has their own distinct fuel system. Nevertheless it still generally adheres to the below guidelines:

Petrol in Diesel Volvo

Fuel Drain

Empty the Fuel Tank

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Wrong Fuel Drain Volvo

System Flush

Clean out the fuel lines & pumps

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Petrol in Diesel Drain Volvo

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.

Get in Touch

In the event that you have any enquiries or need our help please Call us!
We can get you going once again.

24 hour Volvo Helpline

0333 366 0103

Our Corporate Office

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

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