Wrong fuel in your Mazda 626 D? Petrol in your Diesel Mazda?

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Mazda Fuel Drain


Filling up with Petrol in a Diesel Mazda is a common problem. And its remedy varies according to a few factors. Assuming you want to find out what you need to do to fix it then read on.
Here are the key variables to consider whenever deciding whether to get a fuel drain:

  1. Exactly how much Petrol have you put in the Mazda, bearing in mind that the fuel tank capacity of the Mazda 626 D is in most cases roughly 60 litres?
    1. Hardly any Petrol, as little as 3 litres of Petrol in a Diesel 626 D will generally not be a massive problem. Experience has taught us that an amount less than 3 litres (5% of the total fuel tank) is frequently capable of being adequately diluted by means of completely filling up the tank with the appropriate fuel.
      It is quite rare to come across a vehicle going through issues because of less than 5% incorrect fuel contamination. Remember that it is very rare - not impossible to encounter. There are actually a few motor vehicles that don't stand any quantity of fuel contamination whatsoever.
    2. In between 3 and 6 litres of Petrol in the Mazda (from 5 to 10%) is really a 50/50 scenario. Our working experience has demonstrated that as many drivers get away with this as those people who break down. Whenever you are trying to decide whether to risk it and simply top it up bear in mind that it is just like betting all of it on black - you've got a 50/50 chance of it being ok.
    3. Anything in excess of 6 litres of Petrol in a Diesel 626 D must immediately be removed since your probability of driving with this quantity of contamination is in all likelihood lower than one in fifty - really long odds.
  2. Put some Petrol in a Diesel Mazda and drove it: Have you seen any performance issues as a result of putting the incorrect fuel in the 626 D? If that's the case, get it drained irrespective of the quantity of Petrol or the contamination percentage. Continually running a motor vehicle that is currently starting to suffer the effects of fuel contamination can typically be responsible for progressively more damage affecting the fuel system components.
  3. Are you interested in peace of mind?
    In that case get it emptied. Whatever the contamination percentage, there is inevitably some extent of threat affiliated with driving a Diesel engine on Diesel contaminated with the wrong fuel. Possible final outcomes of driving on the wrong fuel can include the engine not starting, running unevenly, loss of power, wearing of the high-pressure pump, worn or clogged injectors, etc. These are a few of the most common Petrol in Diesel warning signs, and in the event that you recognise any of them stop and have it removed as soon as possible.

Stay away from getting any jack-of-all-trades to try to fix your vehicle. We are Mazda specialists and hold the certification and knowledge required to ensure that you get back on the road with no hassle or worry.

Put Petrol in a Diesel Mazda

Accidentally put Petrol in a Diesel Mazda? Or even put contaminated fuel in your Mazda 626 D?

Call us for Help & Guidance

Contact us and get sincere advice and sensible help for your precise circumstance

We show up and do a fuel drain

We are able to reach you to perform the fuel removal & purge there on scene

All done & You Get Moving Again

As soon as we have finished you are 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, offering nationwide cover, for Mazda motorists in particular. We typically attend:

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

We are Mazda specialists and have successfully drained hundreds of Diesel Mazda vehicles. Whether or not it's roadside, on a petrol station forecourt, or even at home, we can get you going again.

The Procedure

The technique of draining Petrol from a Diesel vehicle is essentially the same for virtually all motor vehicles. As you can imagine it may vary somewhat as each manufacturer has their unique different fuel system. Having said that it still basically adheres to the following 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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Petrol in Diesel Questions

When someone has put Petrol in a Diesel car they have a few very common questions. So we have compiled a list of the most Frequently Asked Questions for you

I put Petrol in a Diesel 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 Diesel car on Petrol 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 Petrol can I get away with in a Diesel 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 Diesel 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

Should you have any enquiries or need assistance please Call us!
We are able to get you going again.

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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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