Bad fuel in your BMW 760i? Diesel in a Petrol BMW?

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BMW Fuel Drain


Filling Diesel in a Petrol BMW is a usual problem. And what you should do about it depends on a variety of factors. In the event that you would like to know what you ought to do to sort it out then please read on.
Listed below are the most important factors to take into account when deciding whether to get it drained:

  1. Exactly how much Diesel have you put into the BMW, bearing in mind that the fuel capacity of your BMW 760i is normally about 88 litres?
    1. A small quantity of Diesel, something like 4.4 litres of Diesel in a Petrol 760i will in most situations not really be a major problem. Experience has proven to us that anything less than 4.4 litres (which is close to 5% of the whole fuel tank) is frequently capable of being adequately diluted through wholly filling up the rest of the tank with the correct fuel.
      It's very rare to come across a car suffering from issues due to less than 5% incorrect fuel contamination. Keep in mind it is very infrequently found - certainly not impossible to encounter. You will discover some vehicles that will not stand any degree of contamination whatsoever.
    2. In between 4.4 and 8.8 litres of Diesel in the BMW (from 5 to 10%) is a 50/50 situation. Our practical experience has revealed that as many motorists get away with it as those who break down. Any time you're figuring out whether to chance it and basically fill it up recognise that it is the same thing as gambling all of it on black - you will have a 50/50 chance of it working out.
    3. Anything over 8.8 litres of Diesel in your Petrol 760i ought to promptly be drained out seeing that your probability of getting away with that level of contamination is almost certainly lower than one in fifty - really big odds.
  2. Put some Diesel in a Petrol BMW and drove it: Have you detected any kind of performance issues since putting the incorrect fuel in the 760i? If so, get it emptied regardless of the amount of Diesel or the contamination ratio. Continuing to drive driving a vehicle that is now beginning to suffer the effects of wrong fuel contamination will likely lead to more harm affecting the fuel system.
  3. Are you looking for security?
    You should get it drained. Whatever the contamination percentage, there is invariably some extent of danger caused by driving a Petrol vehicle on fuel contaminated with Diesel. Possible outcomes of driving a car on the wrong fuel include the motor not starting, running lumpy, decrease in power, wearing of the high-pressure pump, worn or blocked injectors, and the like. These are several of the most common Diesel in Petrol signs or symptoms, and in the event that you detect any of them stop and get it drained right now.

Do not just get any unqualified mechanic to try to repair your vehicle. We are BMW specialists and have the qualifications and experience necessary to ensure you are back on the road with a minimum of hassle or worry.

Put Diesel in a Petrol BMW

By mistake put Diesel in a Petrol BMW? Or perhaps even put contaminated fuel in your BMW 760i?

Call us for Help & Advice

Call us and get sincere advice and sensible assistance for your particular circumstance

We show up and do the fuel drain

We would go to you to carry out the full contaminated fuel removal & clean there on scene

All done & You Get Going Again

Once we are done you can get back on the road and get on with your trip

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain professionals in the UK, having national coverage, for BMW motorists in particular. We principally deal with:

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

We are BMW specialists and have successfully drained hundreds of Petrol BMW vehicles. Whether it's at the roadside, on a station forecourt, or even at your house, we are able to get you going once again.

The Process

The technique of draining Diesel from a Petrol vehicle is fundamentally similar for most cars. Needless to say it does vary to some extent as every make has their unique different fuel system. Even so it still follows the below 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 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 queries or require help please Call us!
We can get you going again.

24/7 BMW Helpline

0333 366 0103

Our Corporate Office

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

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