Bad fuel in a BMW 750iL? Diesel in your Petrol BMW?

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BMW Fuel Drain


Putting Diesel in a Petrol BMW is a fairly typical mistake to make. And exactly what you need to do about it depends upon a few factors. In the event that you want to find out what you need to do about it then continue reading.
Listed here the most crucial variables to to consider when deciding whether to have a fuel drain:

  1. How much Diesel did you put in to the BMW, taking into consideration that the fuel capacity of the BMW 750iL is probably approximately 95 litres?
    1. Hardly any Diesel, less than 4.75 litres of Diesel in a Petrol 750iL will in most situations not really be a major problem. Experience has demonstrated to us that anything under 4.75 litres (which is almost 5% of the overall fuel tank capacity) is quite often capable of being adequately diluted simply by thoroughly filling the rest of the tank with the correct fuel.
      It is extremely rare to find a car going through problems due to less than 5% incorrect fuel contamination. Please remember it is infrequent - certainly not impossible to find. You will discover a few vehicles that will not stand any degree of fuel contamination whatsoever.
    2. In between 4.75 and 9.5 litres of Diesel in the BMW (5 to 10%) is more of a 50/50 situation. Our experience demonstrates that as many motorists get away with this as those who break down. Whenever trying to decide whether or not to risk it and just simply fill it up recognise that it is the same thing as wagering it all on black - you have a 50/50 possibility of it being ok.
    3. Anything above 9.5 litres of Diesel in your Petrol 750iL really should immediately be drained out as your likelihood of succeeding with that level of contamination is very likely less than one in fifty - really big odds.
  2. Put Diesel in a Petrol BMW and drove it: Have you detected any performance problems after putting the incorrect fuel in the 750iL? If you have, have it emptied regardless of the quantity of Diesel or the contamination percentage. Proceeding to run driving a motor vehicle that is currently beginning to suffer from the effects of wrong fuel contamination will definitely end up in more harm being done to the fuel system parts.
  3. Would you like assurance?
    Then simply just get it drained. Regardless of the contamination ratio, there is invariably some amount of danger connected to operating a Petrol vehicle on fuel contaminated with Diesel. Possible implications of driving a car on the wrong fuel normally include the engine refusing to start, running lumpy, lack of power, wearing of the high-pressure pump, worn or bunged injectors, and the like. These are some of the commonest Diesel in Petrol signs and symptoms, and if you detect any of them cease driving and have it removed right now.

Don't simply get any jack-of-all-trades to attend your vehicle. We are BMW experts and hold the accreditation and working experience needed to ensure that you are back on the road with little hassle or worry.

Put Diesel in a Petrol BMW

By mistake put Diesel in a Petrol BMW? Or even put contaminated fuel in your BMW 750iL?

Contact us for Assistance & Advice

Give us a call and receive honest recommendations and sensible assistance for your particular circumstance

We arrive and do a fuel drain

We are able to reach you to carry out the fuel removal & clean right there on scene

All done & You Get Going Once again

When we have completed you are able to get back moving and get on with your trip

Wrong Fuel Drain Specialists

We are the leading wrong fuel drain professionals in the UK, having countrywide service, for BMW motorists particularly. We mostly deal with:

  • Unleaded petrol in your Diesel Car
  • Diesel in Unleaded Petrol Vehicle
  • AdBlue contamination
  • Water fuel contamination

We are BMW specialists and have successfully drained thousands of Petrol BMW vehicles. Regardless of whether it is at the roadside, on a station forecourt, or even at your home, we are able to get you moving once again.

The Procedure

The procedure of getting rid of Diesel from a Petrol car is fundamentally identical for a large number of motor vehicles. Needless to say it does vary a bit as each manufacturer has their unique different fuel system. Even so it still observes 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?


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 questions or need some assistance please Contact Us!
We can get you moving once again.

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0333 366 0103

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

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