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Adding 71 liters of gasoline to a diesel engine

Benyamin Davodian
Hello everyone,

This message is for automotive or mechanical engineers only.

pay attention!!!

A customer claims that he accidentally put gasoline in place of a diesel in the Toyota LANCROZER 2008 model

The customer claims a vehicle traveled 14 km until he heard engine noises.

Questions:
  1. Is it possible that a vehicle can travel 14 km?

  • Will the engine work briefly and after a few meters stop?

  • Will the engine not work?

  • I would love to get feedback.


Thanks
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  • 0
    Hello again, Benyamin. It is largely a case of how much wrong fuel goes in. With a very small amount you might get away with it. However you mention 71 litres in your post title. For a medium sized car that is about a tankful. The Toyota Land Cruiser is a large car and probably has a larger tank but 71 litres represents a sizeable portion nevertheless.


    Petrol is much more volatile than diesel fuel. Therefore it would detonate sooner in the compression cycle, possibly before top-dead-centre position, causing a reverse thrust.


    In answer to your questions:
    1. I very much doubt it. You would be lucky to travel 14 metres.

    • The engine could work until the petrol has had time to travel from the tank to the fuel management system. Then you would be unlikely to travel further.

    • It would not work properly. Any attempt to drive it would probably cause severe damage.


    If someone realises that they have filled their car with the wrong fuel, they should not even try to start the engine. Inside they should call the roadside rescue service, who will come and drain the fuel mixture out of the system and refill with the correct fuel.




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  • 0
    Hello again, Benyamin. It is largely a case of how much wrong fuel goes in. With a very small amount you might get away with it. However you mention 71 litres in your post title. For a medium sized car that is about a tankful. The Toyota Land Cruiser is a large car and probably has a larger tank but 71 litres represents a sizeable portion nevertheless.


    Petrol is much more volatile than diesel fuel. Therefore it would detonate sooner in the compression cycle, possibly before top-dead-centre position, causing a reverse thrust.


    In answer to your questions:
    1. I very much doubt it. You would be lucky to travel 14 metres.

    • The engine could work until the petrol has had time to travel from the tank to the fuel management system. Then you would be unlikely to travel further.

    • It would not work properly. Any attempt to drive it would probably cause severe damage.


    If someone realises that they have filled their car with the wrong fuel, they should not even try to start the engine. Inside they should call the roadside rescue service, who will come and drain the fuel mixture out of the system and refill with the correct fuel.




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