Wrong fuel in your Subaru Trezia 1.4D? Petrol in your Diesel Subaru?

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Subaru Fuel Drain


Putting Petrol in a Diesel Subaru is a very common problem. And what you need to do about it depends on several different factors. Assuming you want to know what it is advisable to do about it then keep reading.
Here are the most important factors to think about when figuring out whether or not to have your car drained:

  1. How much Petrol have you put in to the Subaru, considering that the fuel capacity of your Subaru Trezia 1.4D is usually approximately 42 litres?
    1. A modest amount of Petrol, something like 2.1 litres of Petrol in a Diesel Trezia 1.4D will quite often not be a big problem. Experience has taught us that an amount under 2.1 litres (which is close to 5% of the entire fuel tank capacity) is in many instances capable of being adequately diluted by means of totally filling up the rest of the tank with the right fuel.
      It's highly rare to find a car or truck experiencing issues because of lower than 5% incorrect fuel contamination. Be aware that it's rare - in no way impossible to find. There are actually a number of motor vehicles that will not endure any degree of contamination whatsoever.
    2. Somewhere between 2.1 and 4.2 litres of Petrol in the Subaru (from 5 to 10%) is a 50/50 situation. Our working experience has demonstrated that as many motorists get away with it as those who don't. When you are deciding on whether or not to risk it and just fill it up recognise that it is very much like wagering it all on black - you will have a 50/50 chance of it working.
    3. Anything over 4.2 litres of Petrol in your Diesel Trezia 1.4D should straight away be drained because your likelihood of getting away with this level of contamination is almost certainly less than one in 50 - definitely huge odds.
  2. Put some Petrol in a Diesel Subaru and drove it: Have you noticed any kind of performance troubles as a result of putting the incorrect fuel in the Trezia 1.4D? If you have, get it emptied regardless of the volume of Petrol or the contamination ratio. Continually running an automobile that is now starting to suffer the consequences of fuel contamination can just bring about progressively more harm affecting the fuel system parts.
  3. Would you like assurance?
    Simply get it drained. No matter the contamination percentage, there is invariably some amount of danger connected with driving a Diesel vehicle on fuel contaminated with the incorrect fuel. Likely results of driving a car on the incorrect fuel include things like the motor refusing to start, running lumpy, losing power, degradation of the high-pressure pump, worn or blocked injectors, and so forth. These are some of the most typical Petrol in Diesel warning signs, and if you detect any of them stop driving and have it removed asap.

Avoid getting any jack-of-all-trades to try to repair your automobile. We are Subaru experts and possess the credentials and practical experience necessary to make certain that you are back on the road with no hassle or trouble.

Put Petrol in a Diesel Subaru

Accidentally put Petrol in a Diesel Subaru? Or even put contaminated fuel in your Subaru Trezia 1.4D?

Call us for Help & Guidance

Call us and obtain genuine recommendations and sensible help for your particular circumstance

We show up and drain it

We can come to you to carry out the complete fuel retrieval & cleanse there on scene

All done & You Get Going Once again

When we have finished you will be able to get back on the road and get on with your day

Wrong Fuel Drain Specialists

We are the top rated wrong fuel drain authorities in the UK, having national cover, for Subaru motorists especially. We mostly attend to:

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

We are Subaru specialists and have successfully drained thousands of Diesel Subaru vehicles. No matter if it is at the roadside, on a station forecourt, or even at home, we are able to get you on the road again.

The Process

The method of draining Petrol from a Diesel car is essentially exactly the same for a large number of cars. Of course it does vary to some degree as each brand has their particular fuel system. Nevertheless it still follows the following guidelines:

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

Should you have any questions or want some help please Call us!
We can get you going once 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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