Incorrect fuel in a Mazda 6 MZR? Diesel in a Petrol Mazda?

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Mazda Fuel Drain


Putting Diesel in a Petrol Mazda is a usual mistake to make. And exactly what you should do about it is dependent upon a variety of things. Assuming you would like to know what you have to do about this then stay with me.
Listed below are the main variables to take into account whenever deciding on whether to have a fuel drain:

  1. What amount of Diesel have you put into the Mazda, taking into consideration that the fuel capacity of the Mazda 6 MZR is in most cases about 64 litres?
    1. Hardly any Diesel, less than 3.2 litres of Diesel in a Petrol 6 MZR will more often than not not necessarily be a massive problem. Experience has taught us that quantities less than 3.2 litres (which is approximately 5% of the fuel tank capacity) is generally capable of being completely diluted by means of totally filling the remainder of the tank with the appropriate fuel.
      It is very rare to find a car going through problems with under 5% wrong fuel contamination. Do not forget that it is rare - certainly not impossible to encounter. You will discover some motor vehicles that won't stand any amount of contamination in the slightest.
    2. In between 3.2 and 6.4 litres of Diesel in the Mazda (from 5 to 10%) is really a 50/50 scenario. Our expertise has confirmed that as many drivers get away with this as all those who break down. Any time you're deciding upon whether to chance it and just simply fill it up bear in mind that it is exactly like betting it all on black - you will have a 50/50 possibility of it being ok.
    3. Anything more than 6.4 litres of Diesel in a Petrol 6 MZR should right away be drained out since your probability of driving with that quantity of contamination is certainly lower than one in fifty - extremely big odds.
  2. Put some Diesel in a Petrol Mazda and drove it: Have you detected any kind of performance difficulties after putting the wrong fuel in your 6 MZR? If that's the case, get it removed regardless of the volume of Diesel or the contamination ratio. Continually running a vehicle that is starting to suffer from the effect of wrong fuel contamination can only end up in even more harm affecting your fuel system parts.
  3. Would you like security?
    You should get it removed. Regardless of contamination ratio, there is always some degree of threat affiliated with driving a Petrol engine on Petrol contaminated with Diesel. Likely results of driving a vehicle on the wrong fuel normally include the engine not starting, running unevenly, reduced power, degradation of the high-pressure pump, worn out or clogged injectors, etc. These are several of the commonest Diesel in Petrol signs and symptoms, and in the event that you notice any of them then stop and get it removed asap.

Don't just get any jack-of-all-trades to try to repair your car. We are Mazda experts and possess the accreditation and practical experience necessary to ensure that you are back on the road with minimum hassle or trouble.

Put Diesel in a Petrol Mazda

Unintentionally put Diesel in a Petrol Mazda? Or perhaps even put contaminated fuel in your Mazda 6 MZR?

Call us for Assistance & Recommendations

Contact us and receive honest guidance and sensible assistance for your exact circumstances

We arrive and do a fuel drain

We would go to you to perform the complete fuel retrieval & clean right there on scene

Once carried out You Get Moving Again

Once we have completed you can get back on your way and get on with your trip

Wrong Fuel Drain Specialists

We are the leading wrong fuel drain experts in the UK, having countrywide cover, for Mazda motorists especially. We predominantly fix:

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

We are Mazda specialists and have successfully drained hundreds of Petrol Mazda vehicles. No matter if it is roadside, on a petrol station forecourt, or even at your home, we are able to get you going again.

The Procedure

The technique of extracting Diesel from a Petrol vehicle is generally identical for a large number of vehicles. Needless to say it can vary slightly as each brand has their particular different fuel system. Even so it still adheres to the below guidelines:

Petrol in Diesel Mazda

Fuel Drain

Empty the Fuel Tank

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Wrong Fuel Drain Mazda

System Flush

Clean out the fuel lines & pumps

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Petrol in Diesel Drain Mazda

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 the event that you have any concerns or want assistance please Contact Us!
We are able to get you on the road once again.

24/7 Mazda Helpline

0333 366 0103

Our Business Office

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

Weekdays: 9am to 5pm

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