Wrong fuel in your BMW Z3? Diesel in a Petrol BMW?

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BMW Fuel Drain


Filling Diesel in a Petrol BMW is a usual mistake to make. And its remedy depends on several things. If you want to know what you ought to do about it then please read on.
Listed here are the main variables to think about whenever choosing whether or not to get your car drained:

  1. Exactly how much Diesel did you put in to the BMW, bearing in mind that the fuel capacity of your BMW Z3 is in most cases roughly 51 litres?
    1. A tiny quantity of Diesel, as little as 2.55 litres of Diesel in a Petrol Z3 will in most cases not necessarily be a major problem. Experience has shown us that an amount under 2.55 litres (which is 5% of the whole fuel tank capacity) is usually capable of being adequately diluted through thoroughly topping the tank with Petrol.
      It's highly uncommon to find an automobile suffering from difficulties because of under 5% incorrect fuel contamination. Remember that it is infrequent - not impossible to find. You can get certain motor vehicles that won't endure any amount of fuel contamination in the slightest.
    2. Between 2.55 and 5.1 litres of Diesel in the BMW (5 to 10%) is more of a 50/50 situation. Our working experience has demonstrated that as many people get away with this as those who break down. When figuring out whether or not to risk it and basically top it up bear in mind that it is much like betting it all on black - you have got a 50/50 possibility of it being ok.
    3. Anything over 5.1 litres of Diesel in a Petrol Z3 should as soon as possible be drained out as your probability of driving with that amount of contamination is probably below one in 50 - definitely big odds.
  2. Put Diesel in a Petrol BMW and drove it: Have you observed any performance issues ever since putting the incorrect fuel in the Z3? If you have, have it drained regardless of the quantity of Diesel or the contamination ratio. Still driving a vehicle that is already starting to suffer from the effects of fuel contamination will typically result in increasing amounts of damage affecting the fuel system parts.
  3. Would you like assurance?
    Simply get it removed. Regardless of the contamination ratio, there is inevitably some degree of risk linked with operating a Petrol vehicle on Petrol contaminated with Diesel. Likely outcomes of driving a car on the incorrect fuel include the engine refusing to start, running lumpy, loss in power, degradation of the high-pressure pump, worn or bunged injectors, and so forth. These are some of the most frequently seen Diesel in Petrol symptoms, and should you notice any of them then stop driving and get it drained immediately.

Stay away from getting any unqualified mechanic to attend your automobile. We are BMW experts and hold the skills and practical experience necessary to make certain 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 even put contaminated fuel in your BMW Z3?

Contact us for Help & Recommendations

Contact us and get genuine guidance and practical help for your specific circumstance

We show up and drain it

We would reach you to undertake the fuel drain & purge there on scene

All done & You Get Moving Once again

As soon as we have completed you will be able to get back moving and get on with your day

Wrong Fuel Drain Specialists

We are the leading wrong fuel drain experts in the UK, boasting nationwide cover, for BMW motorists in particular. We principally deal with:

  • Unleaded petrol in your Diesel Auto
  • Diesel in Unleaded Petrol Car
  • 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 petrol station forecourt, or even at home, we are able to get you going again.

The Procedure

The procedure of draining Diesel from a Petrol car is essentially identical for virtually all motor vehicles. Naturally it does vary a little as every manufacturer has their own fuel system. Even so it still generally observes the below 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 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.

Call us

In case you have any queries or need our 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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