Contaminated fuel in a Mitsubishi 3000 GT? Diesel in a Petrol Mitsubishi?

We can help!
Call us: 0333 366 0103
Mitsubishi Fuel Drain


Putting Diesel in a Petrol Mitsubishi is a regular problem. And its solution will depend on a few things. If perhaps you would like to find out what to do about this then read on.
Here are the most crucial factors to be aware of whenever deciding on whether or not to get it drained:

  1. What amount of Diesel have you put in to the Mitsubishi, bearing in mind that the fuel tank capacity of your Mitsubishi 3000 GT is most likely roughly 75 litres?
    1. Hardly any Diesel, less than 3.75 litres of Diesel in a Petrol 3000 GT will in most cases not necessarily be a big problem. Experience has shown us that anything under 3.75 litres (which is about 5% of the entire fuel tank) is often capable of being adequately diluted simply by wholly topping the remainder of the tank with Petrol.
      It's pretty unusual to come across a vehicle suffering from difficulties due to less than 5% wrong fuel contamination. Remember that it is very unusual - in no way impossible to find. There are a few motor vehicles that won't stand any amount of fuel contamination whatsoever.
    2. Somewhere between 3.75 and 7.5 litres of Diesel in the Mitsubishi (from 5 to 10%) is more of a 50/50 situation. Our practical experience has confirmed that as many people get away with it as those people who break down. Whenever figuring out whether or not to risk it and simply top it up recognise that it is very much like gambling it all on black - you have got a 50/50 chance of it working out.
    3. Anything in excess of 7.5 litres of Diesel in your Petrol 3000 GT ought to immediately be drained out seeing as your probability of succeeding with that quantity of contamination is probably lower than one in 50 - seriously huge odds.
  2. Put Diesel in a Petrol Mitsubishi and drove it: Have you detected any performance problems since putting the wrong fuel in your 3000 GT? If you have, have it drained irrespective of the amount of Diesel or even the contamination percentage. Continuing to run driving an automobile that is now starting to suffer from the effects of fuel contamination will probably likely bring about even more damage affecting the fuel system parts.
  3. Do you want peace of mind?
    In that case get it removed. Whatever the contamination percentage, there is invariably some extent of danger affiliated with operating a Petrol engine on fuel contaminated with the wrong fuel. Probable 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 clogged injectors, and the like. These are a few of the most frequently seen Diesel in Petrol warning signs, and should you observe any of them then stop driving and have it removed as soon as possible.

Do not just have any unqualified so-and-so to attend your car. We are Mitsubishi experts and possess the certification and experience necessary to make sure that you are back on the road with minimal hassle or worry.

Put Diesel in a Petrol Mitsubishi

Unintentionally put Diesel in a Petrol Mitsubishi? Or even put contaminated fuel in your Mitsubishi 3000 GT?

Contact us for Help & Guidance

Give us a call and receive sincere recommendations and practical help for your specific situation

We come out and drain it

We are able to reach you to undertake the contaminated fuel removal & flush right there on scene

Once done You Get Moving Once again

As soon as we have completed you should be able to get back on your way and get on with your trip

Wrong Fuel Drain Specialists

We are the leading wrong fuel drain specialists in the UK, having nationwide service, for Mitsubishi motorists especially. We principally fix:

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

We are Mitsubishi specialists and have successfully drained thousands of Petrol Mitsubishi vehicles. Whether it's at the roadside, on a filling station forecourt, or even at home, we are able to get you on the road again.

The Process

The method of removing Diesel from a Petrol vehicle is essentially similar for a large number of vehicles. Needless to say it does differ to some degree as each manufacturer has their unique fuel system. Nevertheless it still generally observes the below principles:

Petrol in Diesel Mitsubishi

Fuel Drain

Empty the Fuel Tank

View more
Wrong Fuel Drain Mitsubishi

System Flush

Clean out the fuel lines & pumps

View more
Petrol in Diesel Drain Mitsubishi

Vehicle Restart

Get the car up and running again

View more


Hours a Day


Days a Week





Our Partners

Just some of the few people we work with to bring you the best petrol in diesel service possible

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.

Call us

Should you have any concerns or need assistance please Call us!
We can get you going once again.

24 hour Mitsubishi Helpline

0333 366 0103

Our Business Office

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

Weekdays: 9am to 5pm

Important Info

Fully Insured

VAT Registered

APEX Certified


Fully Mobile

Professionally Trained