Incorrect fuel in your BMW 320si? Diesel in your Petrol BMW?

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BMW Fuel Drain


Putting Diesel in a Petrol BMW is a usual mistake to make. And its solution is dependent upon several different factors. If perhaps you would like to find out what you should do about it then please read on.
Listed here the most important variables to take into account when figuring out whether to have a fuel drain:

  1. What amount of Diesel have you put into the BMW, bearing in mind that the fuel capacity of the BMW 320si is normally roughly 63 litres?
    1. Hardly any Diesel, less than 3.15 litres of Diesel in a Petrol 320si will typically not necessarily be a significant problem. Experience has taught us that quantities less than 3.15 litres (about 5% of the overall fuel tank) is quite often capable of being completely diluted through thoroughly topping the remainder of the tank with Petrol.
      It's highly unusual to encounter a motor vehicle having difficulties with less than 5% wrong fuel contamination. Keep in mind that it is very infrequent - in no way impossible to find. You will discover a number of cars that don't endure any amount of fuel contamination at all.
    2. Somewhere between 3.15 and 6.3 litres of Diesel in the BMW (from 5 to 10%) is really a 50/50 scenario. Our expertise has demonstrated that as many motorists get away with this as those people who don't. Whenever figuring out whether to risk it and just fill it up consider that it is the same as gambling your car on black - you will have a 50/50 possibility of it working.
    3. Anything above 6.3 litres of Diesel in your Petrol 320si should really promptly be drained out since your likelihood of succeeding with this quantity of contamination is almost certainly lower than one in 50 - really big odds.
  2. Put Diesel in a Petrol BMW and drove it: Have you detected any kind of performance concerns after putting the incorrect fuel in the 320si? In that case, have it drained irrespective of the quantity of Diesel or even the contamination percentage. Proceeding to run running a motor vehicle that is beginning to suffer from the effect of fuel contamination will only be responsible for more and more harm being caused to your fuel system.
  3. Are you interested in peace of mind?
    Then get it emptied. Whatever the contamination percentage, there is invariably some amount of danger linked with operating a Petrol engine on fuel contaminated with Diesel. Likely implications of driving on the incorrect fuel can include the engine refusing to start, running lumpy, decrease in power, degradation of the high-pressure pump, worn or clogged injectors, and the like. These are several of the commonest Diesel in Petrol signs and symptoms, and if you detect any of them stop and get it drained right away.

Steer clear of getting any jack-of-all-trades to try to drain your vehicle. We are BMW specialists and hold the accreditation and knowledge required to make sure that you are back on the road with no hassle or worry.

Put Diesel in a Petrol BMW

Mistakenly put Diesel in a Petrol BMW? Or possibly even put contaminated fuel in your BMW 320si?

Contact us for Assistance & Recommendations

Give us a call and receive genuine recommendations and sensible help for your exact circumstances

We arrive and do the fuel drain

We are able to go to you to carry out the contaminated fuel retrieval & clean right there on scene

Once carried out You Get Going Once again

When we are done you are able to get back on the road and get on with your day

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain specialists in the UK, offering national coverage, for BMW motorists especially. We primarily deal with:

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

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

The Procedure

The process of draining Diesel from a Petrol car is essentially similar for the majority of vehicle makes. Needless to say it can differ a bit as each make has their own different fuel system. Nevertheless it still fundamentally adheres to the following guidelines:

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.

Get in Touch

In case you have any queries or require some assistance please Contact Us!
We are able to get you moving 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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