Incorrect fuel in your Subaru Justy? Diesel in your Petrol Subaru?

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Subaru Fuel Drain


Filling Diesel in a Petrol Subaru is a regularly occurring problem. And what you need to do about it is based on several factors. Assuming you want to know what you have to do about this then stay with me.
Listed here the main factors to be aware of whenever choosing whether or not to get a fuel drain:

  1. How much Diesel have you put into the Subaru, keeping in mind that the fuel tank capacity of the Subaru Justy is most likely around 60 litres?
    1. A small quantity of Diesel, as little as 3 litres of Diesel in a Petrol Justy will generally not be a major problem. Experience has demonstrated to us that anything less than 3 litres (almost 5% of the entire fuel tank) is very often able to be completely diluted by completely filling up the remainder of the tank with Petrol.
      It's rather uncommon to find an automobile experiencing difficulties because of lower than 5% wrong fuel contamination. Be aware that it is uncommon - not impossible to encounter. There are a few automobiles that won't endure any degree of fuel contamination at all.
    2. Anywhere between 3 and 6 litres of Diesel in the Subaru (from 5 to 10%) is a 50/50 condition. Our practical experience has shown us that as many people get away with this as those people who don't. Any time you're deciding upon whether to chance it and basically top it up consider that it is the same thing as gambling it all on black - you have a 50/50 possibility of it working.
    3. Anything more than 6 litres of Diesel in your Petrol Justy should really as soon as possible be drained seeing that your probability of succeeding with this level of contamination is almost certainly less than one in fifty - seriously huge odds.
  2. Put Diesel in a Petrol Subaru and drove it: Have you detected any performance issues since putting the bad fuel in your Justy? In that case, get it drained irrespective of the volume of Diesel or even the contamination ratio. Still driving a motor vehicle that is now starting to suffer the effects of fuel contamination can just be responsible for more and more damage affecting your fuel system components.
  3. Do you want security?
    You should get it drained. No matter the contamination ratio, there is invariably some extent of threat connected with driving a Petrol vehicle on fuel contaminated with Diesel. Possible final outcomes of driving on the incorrect fuel can include the motor refusing to start, running unevenly, decrease in power, degradation of the high-pressure pump, worn out or blocked injectors, and so on. These are some of the commonest Diesel in Petrol signs or symptoms, and should you detect any of them stop driving and get it removed immediately.

Don't simply have any jack-of-all-trades to try to drain your automobile. We are Subaru experts and possess the certification and experience required to ensure that you get back on the road with no hassle or worry.

Put Diesel in a Petrol Subaru

By mistake put Diesel in a Petrol Subaru? Or even put contaminated fuel in your Subaru Justy?

Give us a call for Help & Advice

Give us a call and obtain honest advice and sensible assistance for your particular circumstance

We arrive and do a fuel drain

We are able to go to you to do the full contaminated fuel retrieval & cleanse there on scene

All done & You Get Going Again

When we are done 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 experts in the UK, having nationwide coverage, for Subaru motorists especially. We predominantly fix:

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

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

The Process

The system of draining Diesel from a Petrol vehicle is essentially exactly the same for the vast majority of motor vehicles. Naturally it may differ to some degree as every make has their unique fuel system. Even so it still basically observes the below points:

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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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.

Get in Touch

If you have any enquiries or want assistance please Call us!
We can get you going once again.

24/7 Subaru Helpline

0333 366 0103

Our Corporate Office

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

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