Bad fuel in a Lexus IS 300h? Diesel in a Petrol Lexus?

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Lexus Fuel Drain


Filling up with Diesel in a Petrol Lexus is a regular problem. And its remedy depends on several factors. Assuming you would like to find out what it is advisable to do about it then continue reading.
These are the most important factors to consider when making a decision whether to have it drained:

  1. What amount of Diesel did you put in the Lexus, bearing in mind that the fuel tank capacity of the Lexus IS 300h is in most cases around 66 litres?
    1. A small amount of Diesel, something like 3.3 litres of Diesel in a Petrol IS 300h will usually not really be a huge problem. Experience has demonstrated to us that anything less than 3.3 litres (almost 5% of the total fuel tank) is frequently able to be sufficiently diluted by entirely filling the remainder of the tank with Petrol.
      It's highly unusual to find an automobile experiencing problems due to under 5% incorrect fuel contamination. Keep in mind that it's uncommon - definitely not impossible to encounter. There are certain motor vehicles that don't endure any degree of contamination at all.
    2. Anywhere between 3.3 and 6.6 litres of Diesel in the Lexus (5 to 10%) is a 50/50 condition. Our experience has revealed that as many motorists get away with it as those people who break down. When you are deciding upon whether to chance it and just simply top it up bear in mind that it is very much like betting your car on black - you have a 50/50 possibility of it being ok.
    3. Anything above 6.6 litres of Diesel in your Petrol IS 300h must right away be drained out since your likelihood of getting away with that amount of contamination is more than likely lower than one in fifty - extremely long odds.
  2. Put Diesel in a Petrol Lexus and drove it: Have you detected any performance issues ever since putting the wrong fuel in the IS 300h? If you have, get it drained regardless of the quantity of Diesel or the contamination ratio. Still running a motor vehicle that is already starting to suffer from the effects of wrong fuel contamination will probably only be responsible for even more harm being caused to your fuel system components.
  3. Would you like reassurance?
    Then simply just get it removed. Regardless of contamination percentage, there is always some extent of risk resulting from operating a Petrol engine on Petrol contaminated with the incorrect fuel. Possible implications of driving on the wrong fuel normally include the motor refusing to start, running unevenly, loss of power, wearing of the high-pressure pump, worn or bunged injectors, and the like. These are a few of the most frequently seen Diesel in Petrol signs or symptoms, and should you detect any of them then stop and get it removed as soon as possible.

Stay away from getting any jack-of-all-trades to attend your automobile. We are Lexus experts and have got the credentials and expertise needed to make sure that you are back on the road with little hassle or trouble.

Put Diesel in a Petrol Lexus

Unintentionally put Diesel in a Petrol Lexus? Or perhaps even put contaminated fuel in your Lexus IS 300h?

Contact us for Assistance & Recommendations

Call us and get sincere recommendations and sensible assistance for your precise circumstances

We show up and drain it

We would come to you to undertake the fuel removal & flush there on scene

Once completed You Get Going Once again

When we are done you will be able to get back on the road and get on with your trip

Wrong Fuel Drain Specialists

We are the top rated wrong fuel drain experts in the UK, boasting countrywide coverage, for Lexus motorists particularly. We typically attend:

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

We are Lexus specialists and have successfully drained thousands of Petrol Lexus vehicles. Regardless of whether it is at the roadside, on a station forecourt, or even at home, we can get you on the road once again.

The Process

The procedure of removing Diesel from a Petrol vehicle is in essence exactly the same for virtually all vehicles. Of course it can vary to some extent as each brand has their particular fuel system. Having said that it still basically adheres to the following guidelines:

Petrol in Diesel Lexus

Fuel Drain

Empty the Fuel Tank

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Wrong Fuel Drain Lexus

System Flush

Clean out the fuel lines & pumps

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Petrol in Diesel Drain Lexus

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.

Call us

If you have any queries or require some help please Contact Us!
We can get you on the road once again.

24 hour Lexus 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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