Bad fuel in a Fiat Marea? Diesel in your Petrol Fiat?

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Fiat Fuel Drain


Filling up with Diesel in a Petrol Fiat is a common mistake. And its remedy hinges on a few factors. If you would like to know what you have to do about this then continue reading.
Let us discuss the key factors to be aware of when deciding whether to get it drained:

  1. What level of Diesel did you put in the Fiat, taking into account that the fuel capacity of the Fiat Marea is usually around 63 litres?
    1. Hardly any Diesel, less than 3.15 litres of Diesel in a Petrol Marea will typically not necessarily be a massive problem. Experience has demonstrated to us that quantities under 3.15 litres (roughly 5% of the fuel tank) is frequently able to be completely diluted by wholly filling the tank with Petrol.
      It is rather rare to come across a motor vehicle experiencing issues with less than 5% wrong fuel contamination. Do not forget that it is very rare - definitely not impossible to encounter. There are actually some vehicles that won't endure any quantity of fuel contamination in the slightest.
    2. In between 3.15 and 6.3 litres of Diesel in the Fiat (5 to 10%) is a 50/50 scenario. Our experience demonstrates that as many people get away with it as all those who break down. Any time you're deciding whether to chance it and simply top it up recognise that it is the same thing as wagering all of it on black - you have a 50/50 chance of it working out.
    3. Anything more than 6.3 litres of Diesel in your Petrol Marea really should straight away be removed as your probability of getting away with this amount of contamination is almost certainly less than one in fifty - extremely long odds.
  2. Put Diesel in a Petrol Fiat and drove it: Have you detected any kind of performance concerns after putting the wrong fuel in the Marea? If you have, have it removed regardless of the quantity of Diesel or even the contamination percentage. Continuing to run running a vehicle that is already beginning to suffer the effect of wrong fuel contamination can likely lead to more and more damage affecting your fuel system parts.
  3. Are you interested in assurance?
    Then get it removed. Regardless of contamination ratio, there is inevitably a certain level of threat associated with driving a Petrol motor on Petrol contaminated with the incorrect fuel. Probable results of driving a car on the wrong fuel include things like the engine not starting, running unevenly, losing power, degradation of the high-pressure pump, worn or blocked injectors, and the like. These are some of the commonest Diesel in Petrol symptoms, and in the event that you observe any of them then stop driving and get it removed asap.

Stay away from having any unqualified mechanic to try to drain your car. We are Fiat experts and hold the certification and knowledge needed to make sure that you get back on the road with no hassle or worry.

Put Diesel in a Petrol Fiat

Accidentally put Diesel in a Petrol Fiat? Or even put contaminated fuel in your Fiat Marea?

Call us for Help & Guidance

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

We arrive and drain it

We can come to you to do the complete fuel retrieval & flush right there on scene

All done & You Get Going Again

As soon as we are done you are able to get back moving and get on with your day

Wrong Fuel Drain Specialists

We are the top rated wrong fuel drain specialists in the UK, boasting national service, for Fiat motorists especially. We principally attend to:

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

We are Fiat specialists and have successfully drained hundreds of Petrol Fiat vehicles. Even if it is at the roadside, on a petrol station forecourt, or even at your home, we can get you on the road once again.

The Procedure

The process of getting rid of Diesel from a Petrol vehicle is in essence the same for the vast majority of cars. Of course it may differ somewhat as each manufacturer has their unique fuel system. Having said that it still observes the below principles:

Petrol in Diesel Fiat

Fuel Drain

Empty the Fuel Tank

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Wrong Fuel Drain Fiat

System Flush

Clean out the fuel lines & pumps

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Petrol in Diesel Drain Fiat

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.

Contact Us

If you have any enquiries or want some assistance please Call us!
We are able to get you moving again.

24 hour Fiat Helpline

0333 366 0103

Our Corporate Office

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

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