Incorrect fuel in a BMW 330Ci? Diesel in a Petrol BMW?

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BMW Fuel Drain


Filling Diesel in a Petrol BMW is a usual error. And its remedy is based on several factors. If you want to find out what to do about this then keep on reading.
Listed here are the most important factors to take into consideration when making a decision whether to have your car drained:

  1. How much Diesel have you put in the BMW, considering that the fuel tank capacity of the BMW 330Ci is most likely around 63 litres?
    1. Hardly any Diesel, something like 3.15 litres of Diesel in a Petrol 330Ci will generally not necessarily be a significant problem. Experience has taught us that an amount less than 3.15 litres (close to 5% of the entire fuel tank) is in many instances capable of being completely diluted through completely topping the remainder of the tank with Petrol.
      It's extremely unusual to come across a vehicle having problems because of under 5% wrong fuel contamination. Do not forget that it is rare - definitely not impossible to encounter. There are a number of vehicles that don't endure any level of contamination in the slightest.
    2. Between 3.15 and 6.3 litres of Diesel in the BMW (5 to 10%) is more of a 50/50 situation. Our practical experience has proven that as many motorists get away with it as those people who don't. When you are trying to decide whether or not to risk it and just top it up recognise that it is exactly like betting all of it on black - you have got a 50/50 possibility of it working out.
    3. Anything over 6.3 litres of Diesel in a Petrol 330Ci really should as soon as possible be removed seeing as your probability of driving with this level of contamination is in all likelihood below one in 50 - really huge odds.
  2. Put Diesel in a Petrol BMW and drove it: Have you noted any performance concerns since putting the incorrect fuel in the 330Ci? In that case, get it emptied no matter the quantity of Diesel or the contamination ratio. Continually driving an automobile that is currently starting to suffer from the effects of fuel contamination will probably likely result in more harm affecting the fuel system parts.
  3. Would you like security?
    Then simply just get it emptied. No matter the contamination ratio, there is invariably some amount of risk connected to driving a Petrol engine on fuel contaminated with Diesel. Likely implications of driving a car on the wrong fuel include things like the motor not starting, running lumpy, lack of power, degradation of the high-pressure pump, damaged or bunged injectors, etc. These are a few of the most common Diesel in Petrol warning signs, and in the event that you notice any of them cease driving and have it removed as soon as possible.

Do not just get any jack-of-all-trades to attend your vehicle. We are BMW specialists and have the skills and knowledge needed to ensure you get back on the road with minimal hassle or trouble.

Put Diesel in a Petrol BMW

Inadvertently put Diesel in a Petrol BMW? Or even put contaminated fuel in your BMW 330Ci?

Call us for Assistance & Advice

Call us and receive straightforward recommendations and practical assistance for your precise circumstance

We come out and do the fuel drain

We are able to come to you to undertake the contaminated fuel retrieval & cleanse right there on scene

Once performed You Get Going Once again

When we are done you should be able to get back on your way and get on with your day

Wrong Fuel Drain Specialists

We are the top rated wrong fuel drain professionals in the UK, offering national cover, for BMW motorists especially. We mainly attend:

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

We are BMW specialists and have successfully drained thousands of Petrol BMW vehicles. Whether or not it's at the roadside, on a station forecourt, or even at home, we can get you on the road once again.

The Process

The process of extracting Diesel from a Petrol car is essentially exactly the same for the vast majority of motor vehicles. Obviously it may vary to some degree as every manufacturer has their particular fuel system. Even so it still fundamentally 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 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.

Get in Touch

In case you have any enquiries or need help please Call us!
We can get you on the road 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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