Bad fuel in your Toyota iQ? Diesel in a Petrol Toyota?

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Toyota Fuel Drain


Filling up with Diesel in a Petrol Toyota is a regularly occurring error. And exactly what you need to do about it depends on an assortment of things. Assuming you want to find out what it is advisable to do to fix it then keep reading.
These are the most important factors to take into account when deciding whether to have the car drained:

  1. What level of Diesel did you put in to the Toyota, taking into consideration that the fuel tank capacity of your Toyota iQ is usually about 32 litres?
    1. A modest amount of Diesel, less than 1.6 litres of Diesel in a Petrol iQ will quite often not necessarily be a huge problem. Experience has shown us that an amount under 1.6 litres (roughly 5% of the total fuel tank capacity) is sometimes able to be adequately diluted by means of entirely filling up the rest of the tank with Petrol.
      It's relatively uncommon to encounter a vehicle going through difficulties because of under 5% wrong fuel contamination. Do not forget that it is very rare - certainly not impossible to find. You can get certain cars that don't stand any degree of fuel contamination in the slightest.
    2. Somewhere between 1.6 and 3.2 litres of Diesel in the Toyota (5 to 10%) is a 50/50 condition. Our experience demonstrates that as many people get away with it as those people who don't. Whenever deciding whether or not to risk it and just simply top it up recognise that it is exactly like betting it all on black - you have got a 50/50 possibility of it working.
    3. Anything above 3.2 litres of Diesel in a Petrol iQ ought to as soon as possible be drained out since your likelihood of driving with that amount of contamination is very likely lower than one in 50 - seriously long odds.
  2. Put Diesel in a Petrol Toyota and drove it: Have you detected any performance concerns as a result of putting the incorrect fuel in your iQ? If so, have it drained irrespective of the volume of Diesel or the contamination percentage. Continually running a car that is now starting to suffer from the effects of fuel contamination will only result in even more harm affecting your fuel system parts.
  3. Would you like assurance?
    Then get it removed. Regardless of contamination ratio, there is invariably some degree of threat associated with driving a Petrol engine on fuel contaminated with Diesel. Likely implications of driving a car on the wrong fuel include things like the motor refusing to start, running lumpy, losing power, degradation of the high-pressure pump, worn or blocked injectors, etc. These are some of the most frequently seen Diesel in Petrol symptoms, and in the event that you notice any of them then stop and get it removed asap.

Do not just get any jack-of-all-trades to try to repair your automobile. We are Toyota specialists and have got the skills and working experience needed to ensure that you get back on the road with minimal hassle or trouble.

Put Diesel in a Petrol Toyota

Accidentally put Diesel in a Petrol Toyota? Or perhaps even put contaminated fuel in your Toyota iQ?

Call us for Assistance & Recommendations

Give us a call and get reliable recommendations and sensible help for your precise circumstance

We show up and drain it

We can go to you to carry out the full fuel retrieval & flush right there on scene

All done & You Get Going Again

Once we have finished you can get back on the road and get on with your day

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain professionals in the UK, boasting nationwide cover, for Toyota motorists in particular. We principally attend:

  • Unleaded petrol in a Diesel Auto
  • Diesel in Unleaded Petrol Car
  • AdBlue contamination
  • Water contamination

We are Toyota specialists and have successfully drained hundreds of Petrol Toyota vehicles. Regardless of whether it is at the roadside, on a filling station forecourt, or even at your house, we are able to get you moving again.

The Process

The technique of draining Diesel from a Petrol car is generally identical for most vehicle makes. Of course it may vary somewhat as each brand has their unique different fuel system. Having said that it still basically follows the below guidelines:

Petrol in Diesel Toyota

Fuel Drain

Empty the Fuel Tank

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Wrong Fuel Drain Toyota

System Flush

Clean out the fuel lines & pumps

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Petrol in Diesel Drain Toyota

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.

Call us

If you have any enquiries or want our assistance please Call us!
We can get you on the road once again.

24/7 Toyota Helpline

0333 366 0103

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

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