Wrong fuel in your BMW 428i? Diesel in a Petrol BMW?

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BMW Fuel Drain

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Putting Diesel in a Petrol BMW is a common mistake. And exactly what you need to do about it will depend on several things. In the event that you want to find out what you ought to do about this then continue reading.
Listed here are the most important factors to be aware of when figuring out whether to get a fuel drain:

  1. What level of Diesel did you put in the BMW, taking into account that the fuel tank capacity of the BMW 428i is most likely roughly 60 litres?
    1. A small amount of Diesel, less than 3 litres of Diesel in a Petrol 428i will quite often not necessarily be a massive problem. Experience has shown us that quantities under 3 litres (which is roughly 5% of the entire fuel tank) is very often capable of being sufficiently diluted simply by wholly topping up the remainder of the tank with the correct fuel.
      It's very unusual to encounter a car suffering from issues because of less than 5% wrong fuel contamination. Please remember it is infrequent - certainly not impossible to encounter. There are some vehicles that won't endure any level of fuel contamination whatsoever.
    2. Anywhere between 3 and 6 litres of Diesel in the BMW (5 to 10%) is more of a 50/50 condition. Our practical experience has confirmed that as many motorists get away with it as those who break down. When trying to decide whether or not to chance it and just simply top it up recognise that it is very much like betting everything on black - you will have a 50/50 possibility of it being ok.
    3. Anything above 6 litres of Diesel in your Petrol 428i really should right away be removed seeing that your likelihood of driving with that quantity of contamination is very likely below one in fifty - truly big odds.
  2. Put Diesel in a Petrol BMW and drove it: Have you spotted any performance difficulties since putting the incorrect fuel in the 428i? In that case, have it drained regardless of the amount of Diesel or even the contamination ratio. Continually running a car that is now starting to suffer from the effect of wrong fuel contamination will typically cause increasing amounts of damage being caused to your fuel system parts.
  3. Are you looking for security?
    Then simply just get it removed. Whatever the contamination ratio, there is invariably some degree of risk associated with driving a Petrol vehicle on Petrol contaminated with the incorrect fuel. Possible consequences of driving on the wrong fuel include the engine refusing to start, running lumpy, losing power, degradation of the high-pressure pump, damaged or bunged injectors, and so on. These are some of the most typical Diesel in Petrol warning signs, and should you recognise any of them stop and get it drained right now.

Don't simply have any general so-and-so to try to drain your automobile. We are BMW specialists and have got the skills and experience necessary to ensure you are back on the road with minimal 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 428i?

Contact us for Assistance & Guidance

Call us and obtain genuine guidance and sensible assistance for your particular circumstance

We arrive and do a fuel drain

We are able to go to you to carry out the fuel drain & flush there on scene

All done & You Get Going Again

As soon as we have finished you should be able to get back moving and get on with your trip

Wrong Fuel Drain Specialists

We are the top rated wrong fuel drain experts in the UK, offering nationwide cover, for BMW motorists especially. We mostly deal with:

  • Unleaded petrol in Diesel Vehicle
  • Diesel in an Unleaded Petrol Vehicle
  • AdBlue fuel contamination
  • Water contamination

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

The Procedure

The system of getting rid of Diesel from a Petrol car is essentially the same for virtually all cars. As you can imagine it may differ slightly as each make has their own different fuel system. Having said that it still generally observes the following principles:

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?

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

Should you have any questions or need our assistance please Contact Us!
We are able to get you moving once again.

24 hour 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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