Ethanol Conversion: A Complete Guide to Switching to Alternative Fuel

- min read

Ethanol Conversion: A Complete Guide to Switching to Alternative Fuel

Conversion to ethanol by engine reprogramming:



  • Engine reprogramming allows you to convert a gasoline vehicle into a flexfuel vehicle, capable of running on gasoline or ethanol.
  • This solution offers great flexibility to drivers, who can choose the fuel best suited to their needs and budget.
  • Flexfuel reprogramming is generally more expensive than installing a conversion box, but it offers better performance and greater compatibility with modern vehicles.


Conversion to ethanol only:

  • Engine reprogramming can also be used to convert a gasoline vehicle to one that runs solely on ethanol.
  • This option is less expensive than flexfuel conversion, but it does not allow you to run on gasoline.
  • Converting to ethanol only is an attractive solution for drivers who are committed to using ethanol as their primary fuel.


Installing a conversion box:

  • A conversion box is an electronic device that allows you to adapt the engine of a gasoline vehicle to run on ethanol.
  • The box is generally installed between the engine computer and the injectors.
  • It has an ethanol sensor that can detect the fuel composition and adjust the engine parameters accordingly.
  • Installing a conversion box is an affordable and simple solution to converting a vehicle to ethanol.
  • However, this solution may slightly affect vehicle performance and is not compatible with all models.


Choose the conversion solution suited to your needs:

  • The choice of conversion solution depends on several factors:
    • The budget
    • The type of vehicle
    • Driver needs
  • It is important to research and compare the different options before making a decision.
  • Professionals specialized in ethanol conversion can assist you in your choice and offer you the solution best suited to your situation.


Financial aid and incentives:

  • The French government encourages the conversion to ethanol by offering financial aid and incentives.
    • A conversion bonus
    • A reduction in fuel taxes
  • It is important to find out about the eligibility conditions for this aid and to compare the different offers before making your choice.



Conversion to ethanol is a promising solution to reduce the carbon footprint and promote a more local and resilient economy. By informing themselves and choosing the conversion solution adapted to their needs, each motorist can contribute to the ecological and economic transition.


Further information :

  • Official website of the Ministry of Ecological Transition:
  • Website of the interprofessional bioethanol association:
  • List of approved installers of ethanol conversion kits:

Remember, converting to ethanol is not a quick fix. It is important to ensure that your vehicle is compatible and follow the operating instructions to ensure safe and long-lasting driving.

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