Bad fuel in your Mazda 2? Diesel in a Petrol Mazda?

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Mazda Fuel Drain


Filling Diesel in a Petrol Mazda is a common mistake to make. And its solution varies according to various factors. Assuming you would like to know what it is advisable to do about this then read on.
These are the most crucial factors to take into consideration whenever choosing whether or not to have it drained:

  1. How much Diesel did you put in to the Mazda, keeping in mind that the fuel tank capacity of the Mazda 2 is normally around 43 litres?
    1. A tiny quantity of Diesel, as little as 2.15 litres of Diesel in a Petrol 2 will normally not necessarily be a big problem. Experience has demonstrated to us that quantities under 2.15 litres (which is approximately 5% of the overall fuel tank) is quite often able to be adequately diluted by means of completely filling up the tank with Petrol.
      It is highly unusual to come across a car experiencing issues due to lower than 5% wrong fuel contamination. Keep in mind it is very infrequently found - not impossible to find. There are some cars that won't stand any amount of contamination in the slightest.
    2. In between 2.15 and 4.3 litres of Diesel in the Mazda (from 5 to 10%) is a 50/50 condition. Our practical experience demonstrates that as many people get away with this as those people who break down. Any time you are trying to decide whether or not to chance it and just simply fill it up bear in mind that it is the same as wagering everything on black - you will have a 50/50 chance of it working.
    3. Anything in excess of 4.3 litres of Diesel in your Petrol 2 must immediately be drained since your probability of driving with this quantity of contamination is very likely less than one in 50 - really long odds.
  2. Put Diesel in a Petrol Mazda and drove it: Have you detected any performance problems after putting the wrong fuel in the 2? If that's the case, get it drained regardless of the volume of Diesel or even the contamination ratio. Proceeding to drive running an automobile that is already starting to suffer from the effect of fuel contamination will probably only lead to progressively more damage being done to your fuel system components.
  3. Do you want reassurance?
    You should get it removed. Whatever the contamination percentage, there is invariably some amount of danger connected to driving a Petrol vehicle on Petrol contaminated with Diesel. Probable results of driving a car on the wrong fuel include things like the engine not starting, running lumpy, decrease in power, degradation of the high-pressure pump, worn or bunged injectors, and so forth. These are some of the most common Diesel in Petrol warning signs, and should you notice any of them stop and have it removed asap.

Do not simply get any untrained so-and-so to try to fix your car. We are Mazda specialists and possess the accreditation and working experience required to ensure that you are back on the road with minimal hassle or worry.

Put Diesel in a Petrol Mazda

Inadvertently put Diesel in a Petrol Mazda? Or perhaps even put contaminated fuel in your Mazda 2?

Give us a call for Assistance & Advice

Call us and get straightforward recommendations and sensible help for your specific circumstance

We arrive and drain it

We can go to you to carry out the full fuel retrieval & flush there on scene

Once done You Get Moving Once again

As soon as we have finished you can get back on the road and get on with your day

Wrong Fuel Drain Specialists

We are the top rated wrong fuel drain specialists in the UK, offering national service, for Mazda motorists particularly. We typically attend:

  • Unleaded petrol in a Diesel Vehicle
  • Diesel in an Unleaded Petrol Car
  • AdBlue contamination
  • Water contamination

We are Mazda specialists and have successfully drained thousands of Petrol Mazda vehicles. Whether it is roadside, on a filling station forecourt, or even at your house, we are able to get you on the road once again.

The Process

The method of draining Diesel from a Petrol car is generally identical for most cars. Obviously it can vary slightly as every manufacturer has their unique different fuel system. However it still follows 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.

Contact Us

In case you have any queries or want some help please Call us!
We can get you on the road once again.

24/7 Mazda Helpline

0333 366 0103

Our Corporate Office

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

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