Contaminated fuel in your BMW 750i? Diesel in a Petrol BMW?

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Putting Diesel in a Petrol BMW is a very common mistake to make. And its remedy is determined by a number of things. In the event that you want to find out what you need to do about it then please read on.
Right here are the most important factors to take into account when deciding on whether to have a fuel drain:

  1. What level of Diesel have you put in to the BMW, considering that the fuel capacity of your BMW 750i is probably around 85 litres?
    1. A small quantity of Diesel, as little as 4.25 litres of Diesel in a Petrol 750i will more often than not not really be a significant problem. Experience has demonstrated to us that an amount less than 4.25 litres (close to 5% of the fuel tank volume) is usually able to be completely diluted by means of thoroughly filling up the rest of the tank with Petrol.
      It's very uncommon to encounter a car or truck having problems with lower than 5% wrong fuel contamination. Please remember it is rare - certainly not impossible to encounter. You can get a few vehicles that won't endure any quantity of fuel contamination at all.
    2. Between 4.25 and 8.5 litres of Diesel in the BMW (5 to 10%) is a 50/50 situation. Our working experience demonstrates that as many drivers get away with it as all those who break down. Whenever you are deciding on whether to chance it and basically top it up remember that it is very much like gambling it all on black - you will have a 50/50 possibility of it being ok.
    3. Anything above 8.5 litres of Diesel in your Petrol 750i really should straight away be removed as your probability of getting away with this amount of contamination is probably lower than one in 50 - truly long odds.
  2. Put some Diesel in a Petrol BMW and drove it: Have you seen any kind of performance troubles as a result of putting the wrong fuel in your 750i? If that's the case, have it removed irrespective of the amount of Diesel or even the contamination ratio. Continuing to drive running a vehicle that is now beginning to suffer from the effect of wrong fuel contamination will only cause more harm affecting your fuel system.
  3. Do you want security?
    In that case get it emptied. Whatever the contamination percentage, there is always some extent of risk resulting from operating a Petrol motor on fuel contaminated with Diesel. Likely outcomes of driving a vehicle on the wrong fuel normally include the motor refusing to start, running lumpy, lack of power, degradation of the high-pressure pump, worn out or clogged injectors, etc. These are some of the commonest Diesel in Petrol symptoms, and if you detect any of them then cease driving and have it removed asap.

Keep away from getting any unqualified mechanic to try to repair your vehicle. We are BMW experts and possess the skills and expertise needed to ensure you get back on the road with a minimum of hassle or trouble.


Put Diesel in a Petrol BMW

Inadvertently put Diesel in a Petrol BMW? Or perhaps even put contaminated fuel in your BMW 750i?

Give us a call for Help & Recommendations

Contact us and receive sincere guidance and practical help for your particular situation

We come out and do the fuel drain

We would go to you to do the fuel drain & clean there on scene

All done & You Get Going Once again

Once we have finished you are able to get back on your way and get on with your day

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain professionals in the UK, offering nationwide cover, for BMW motorists particularly. We mostly attend to:

  • Unleaded petrol in a Diesel Vehicle
  • Diesel in Unleaded Petrol Auto
  • AdBlue contamination
  • Water contamination

We are BMW specialists and have successfully drained thousands of Petrol BMW vehicles. No matter if it's roadside, on a filling station forecourt, or even at home, we are able to get you going once again.

The Process

The system of draining Diesel from a Petrol vehicle is generally exactly the same for most motor vehicles. Of course it does vary to some extent as every brand has their unique different fuel system. Nevertheless it still fundamentally follows the following points:

Petrol in Diesel BMW

Fuel Drain

Empty the Fuel Tank

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Wrong Fuel Drain BMW

System Flush

Clean out the fuel lines & pumps

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Petrol in Diesel Drain BMW

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?

Answer

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?

Answer

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?

Answer

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?

Answer

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?

Answer

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?

Answer

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 concerns or need help please Contact Us!
We are able to get you moving once again.

24/7 BMW Helpline

0333 366 0103

Our Corporate Office

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

enquiries@fuelfixeruk.co.uk

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