Contaminated fuel in a Subaru Impreza 2.0D? Petrol in a Diesel Subaru?

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Subaru Fuel Drain


Filling up with Petrol in a Diesel Subaru is a usual mistake to make. And exactly what you have to do about it depends on a few factors. Assuming you would like to know what you ought to do about this then please read on.
These are the main variables to consider whenever choosing whether to have it drained:

  1. What level of Petrol have you put into the Subaru, taking into account that the fuel capacity of the Subaru Impreza 2.0D is normally approximately 64 litres?
    1. Hardly any Petrol, less than 3.2 litres of Petrol in a Diesel Impreza 2.0D will in most situations not be a major problem. Experience has shown us that quantities less than 3.2 litres (about 5% of the total fuel tank capacity) is in many instances capable of being adequately diluted simply by totally topping the tank with Diesel.
      It's relatively uncommon to come across a motor vehicle experiencing difficulties with below 5% incorrect fuel contamination. Bear in mind that it is very unusual - certainly not impossible to find. You can get certain automobiles that won't endure any level of contamination whatsoever.
    2. Between 3.2 and 6.4 litres of Petrol in the Subaru (from 5 to 10%) is a 50/50 scenario. Our experience demonstrates that as many motorists get away with this as all those who break down. Whenever you are deciding whether to chance it and just top it up remember that it is the same as wagering everything on black - you will have a 50/50 chance of it working out.
    3. Anything in excess of 6.4 litres of Petrol in your Diesel Impreza 2.0D must promptly be removed as your likelihood of succeeding with this amount of contamination is very likely lower than one in fifty - genuinely long odds.
  2. Put Petrol in a Diesel Subaru and drove it: Have you observed any kind of performance difficulties ever since putting the incorrect fuel in the Impreza 2.0D? If so, get it removed regardless of the quantity of Petrol or the contamination percentage. Proceeding to run running a car that is currently beginning to suffer the effects of fuel contamination can only cause progressively more damage affecting the fuel system components.
  3. Would you like assurance?
    Simply get it emptied. Regardless of contamination ratio, there is always some amount of risk connected to driving a Diesel motor on Diesel contaminated with Petrol. Likely consequences of driving on the wrong fuel can include the motor refusing to start, running lumpy, lack of power, degradation of the high-pressure pump, worn or bunged injectors, and the like. These are a few of the most common Petrol in Diesel symptoms, and if you observe any of them then stop and have it removed right away.

Don't just have any unqualified mechanic to attend your car. We are Subaru specialists and have the skills and working experience needed to ensure you get back on the road with minimal hassle or worry.

Put Petrol in a Diesel Subaru

Mistakenly put Petrol in a Diesel Subaru? Or perhaps even put contaminated fuel in your Subaru Impreza 2.0D?

Call us for Help & Advice

Call us and get genuine recommendations and sensible assistance for your specific circumstances

We come out and do a fuel drain

We are able to go to you to carry out the full contaminated fuel removal & flush there on scene

Once carried out You Get Going Again

As soon as we are done you can get back on the road and get on with your day

Wrong Fuel Drain Specialists

We are the leading wrong fuel drain experts in the UK, offering countrywide coverage, for Subaru motorists particularly. We mostly deal with:

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

We are Subaru specialists and have successfully drained hundreds of Diesel Subaru vehicles. Whether or not it's roadside, on a petrol station forecourt, or even at your home, we are able to get you moving once again.

The Process

The method of getting rid of Petrol from a Diesel car is basically the same for a large number of motor vehicles. Naturally it can differ a little as every brand has their particular fuel system. Nevertheless it still fundamentally follows the below principles:

Petrol in Diesel Subaru

Fuel Drain

Empty the Fuel Tank

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Wrong Fuel Drain Subaru

System Flush

Clean out the fuel lines & pumps

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Petrol in Diesel Drain Subaru

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.

Get in Touch

In case you have any concerns or want our help please Contact Us!
We can get you on the road again.

24 hour Subaru 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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