Bad fuel in a Toyota Aygo? Diesel in a Petrol Toyota?

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


Filling up with Diesel in a Petrol Toyota is a regularly occurring problem. And exactly what you need to do about it is dependent upon various factors. In the event that you would like to know what you must do about this then please read on.
Here are the most important variables to think about when figuring out whether or not to have the car drained:

  1. Exactly how much Diesel did you put in to the Toyota, taking into account that the fuel capacity of your Toyota Aygo is normally approximately 35 litres?
    1. Hardly any Diesel, less than 1.75 litres of Diesel in a Petrol Aygo will in most situations not necessarily be a massive problem. Experience has proven to us that anything less than 1.75 litres (5% of the fuel tank) is sometimes able to be completely diluted by totally topping up the remainder of the tank with Petrol.
      It's rather unusual to find a motor vehicle experiencing problems due to lower than 5% incorrect fuel contamination. Please remember it's unusual - not impossible to encounter. There are a number of vehicles that will not stand any level of fuel contamination in the slightest.
    2. Anywhere between 1.75 and 3.5 litres of Diesel in the Toyota (from 5 to 10%) is really a 50/50 condition. Our practical experience has shown us that as many drivers get away with this as all those who break down. Any time you are deciding upon whether or not to risk it and simply fill it up bear in mind that it is much like gambling all of it on black - you've got a 50/50 possibility of it being ok.
    3. Anything above 3.5 litres of Diesel in a Petrol Aygo should as soon as possible be drained since your probability of getting away with that amount of contamination is very likely lower than one in 50 - genuinely long odds.
  2. Put Diesel in a Petrol Toyota and drove it: Have you seen any performance concerns after putting the bad fuel in your Aygo? If so, have it emptied irrespective of the volume of Diesel or the contamination ratio. Proceeding to run running an automobile that is currently beginning to suffer from the consequences of wrong fuel contamination can just cause increasing amounts of damage being done to the fuel system parts.
  3. Do you want reassurance?
    Then get it drained. No matter the contamination percentage, there is invariably some extent of threat resulting from driving a Petrol motor on fuel contaminated with Diesel. Probable consequences of driving on the incorrect fuel include things like the engine not starting, running unevenly, loss of power, degradation of the high-pressure pump, worn or bunged injectors, and the like. These are some of the most frequently seen Diesel in Petrol signs or symptoms, and if you recognise any of them cease driving and have it removed right away.

Keep away from getting any jack-of-all-trades to attend your car. We are Toyota specialists and hold the certification and working experience necessary to make sure that you get back on the road with no hassle or trouble.

Put Diesel in a Petrol Toyota

Unintentionally put Diesel in a Petrol Toyota? Or possibly even put contaminated fuel in your Toyota Aygo?

Call us for Assistance & Recommendations

Call us and obtain straightforward recommendations and sensible assistance for your exact circumstance

We arrive and do the fuel drain

We can come to you to do the complete fuel retrieval & clean right there on scene

All done & You Get Moving Once again

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

Wrong Fuel Drain Specialists

We are the leading wrong fuel drain authorities in the UK, having national service, for Toyota motorists in particular. We primarily fix:

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

We are Toyota specialists and have successfully drained thousands of Petrol Toyota vehicles. Whether or not it is at the roadside, on a petrol station forecourt, or even at your house, we are able to get you moving again.

The Procedure

The system of getting rid of Diesel from a Petrol car is fundamentally similar for a large number of cars. Needless to say it can differ a little as every brand has their unique distinct fuel system. Nevertheless it still generally follows the below points:

Petrol in Diesel Toyota

Fuel Drain

Empty the Fuel Tank

View more
Wrong Fuel Drain Toyota

System Flush

Clean out the fuel lines & pumps

View more
Petrol in Diesel Drain Toyota

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.

Get in Touch

In the event that you have any concerns or want some help please Contact Us!
We are able to get you moving again.

24/7 Toyota Helpline

0333 366 0103

Our Corporate Office

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

Important Info

Fully Insured

VAT Registered

APEX Certified


Fully Mobile

Professionally Trained