Wrong fuel in your Mazda Rx-7? Diesel in a Petrol Mazda?

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Mazda Fuel Drain


Putting Diesel in a Petrol Mazda is a fairly typical problem. And exactly what you have to do about it is based on a few factors. If you would like to know what you ought to do to sort it out then continue reading.
Let us discuss the most crucial factors to consider whenever determining whether or not to have it drained:

  1. What level of Diesel have you put in to the Mazda, taking into consideration that the fuel capacity of the Mazda Rx-7 is probably approximately 76 litres?
    1. Hardly any Diesel, as little as 3.8 litres of Diesel in a Petrol Rx-7 will typically not really be a significant problem. Experience has demonstrated to us that quantities under 3.8 litres (which is roughly 5% of the entire fuel tank volume) is quite often able to be completely diluted simply by thoroughly filling up the rest of the tank with Petrol.
      It's quite unusual to come across a car going through difficulties with below 5% wrong fuel contamination. Keep in mind that it is very unusual - definitely not impossible to find. You will discover some cars that don't endure any degree of contamination at all.
    2. Anywhere between 3.8 and 7.6 litres of Diesel in the Mazda (from 5 to 10%) is really a 50/50 situation. Our expertise demonstrates that as many motorists get away with this as those who break down. Any time you're deciding on whether or not to chance it and just top it up bear in mind that it is very much like gambling your car on black - you've got a 50/50 possibility of it being ok.
    3. Anything above 7.6 litres of Diesel in a Petrol Rx-7 should as soon as possible be drained seeing as your likelihood of driving with this amount of contamination is almost certainly less than one in fifty - extremely long odds.
  2. Put some Diesel in a Petrol Mazda and drove it: Have you spotted any performance problems as a result of putting the bad fuel in the Rx-7? If that's the case, have it drained regardless of the quantity of Diesel or the contamination percentage. Continually driving a car that is now beginning to suffer the consequences of wrong fuel contamination will likely be responsible for even more harm affecting the fuel system.
  3. Are you looking for security?
    Simply get it removed. Regardless of contamination ratio, there is inevitably some amount of risk resulting from driving a Petrol motor on fuel contaminated with Diesel. Possible consequences of driving a car on the wrong fuel include the engine not starting, running lumpy, loss in power, degradation of the high-pressure pump, worn out or bunged injectors, and so forth. These are a few of the most common Diesel in Petrol symptoms, and if you recognise any of them stop driving and get it removed right away.

Do not just have any unqualified mechanic to try to repair your car. We are Mazda experts and hold the skills and working experience necessary to make sure that you are back on the road with a minimum of hassle or trouble.

Put Diesel in a Petrol Mazda

Accidentally put Diesel in a Petrol Mazda? Or perhaps even put contaminated fuel in your Mazda Rx-7?

Call us for Help & Advice

Contact us and obtain honest recommendations and practical assistance for your specific circumstances

We show up and drain it

We would come to you to carry out the contaminated fuel removal & purge there on scene

Once carried out You Get Going Once again

As soon as we have finished you are able to get back on your way and get on with your day

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain authorities in the UK, boasting nationwide cover, for Mazda motorists particularly. We mostly attend to:

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

We are Mazda specialists and have successfully drained thousands of Petrol Mazda vehicles. Regardless of whether it is at the roadside, on a station forecourt, or even at your home, we are able to get you moving again.

The Procedure

The technique of extracting Diesel from a Petrol vehicle is generally exactly the same for the majority of vehicles. Of course it may differ to some degree as each brand has their unique fuel system. Nevertheless it still essentially observes the following points:

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 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

If you have any questions or want assistance please Contact Us!
We can get you going 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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