Flex fuel
E85 ethanol conversion - certified flexfuel reprogramming
E85 reprogramming is an ideal solution for using a more economical and environmentally-friendly fuel. By adjusting your vehicle's ECU to ethanol, you can drive on bioethanol while improving engine performance. Unlike ECUs (although these are still effective), engine reprogramming for petrol is more durable and safer. Find out more about our petrol engine reprogramming services for E85, our ethanol reprogramming prices and the compatibility of E85 vehicles using our configurator, to reduce your fuel costs and emissions.
Fuel
E85, ethanol, Flexfuel?
Bioethanol is a biofuel produced from plants rich in sugar (beet, sugar cane) or starch (maize, wheat). E85 fuel, also known as superethanol, is a blend of biofuel and petrol.
Ethanol reprogramming, often referred to as ethanol conversion or e85 flexfuel, represents a technological advance for drivers of e85-compatible vehicles (only available for petrol vehicles, not diesel vehicles) who want to adopt a more ecological and economical driving style. This method adjusts the engine 's operation to enable it to run on bioethanol, reducing greenhouse gas emissions while improving the car's performance. Superethanol reprogramming or ethanol e85 reprogramming optimises the operation of e85-compatible vehicles.
In short, E85 fuel offers an attractive alternative to SP95, SP98 or E10, both environmentally and economically, for drivers who want to reduce their impact on the environment while enjoying high performance driving.
E85 Flex+
Flex+ ethanol reprogramming: Savings and power gains
For those looking to combine eco-responsibility with enhanced performance, Shiftech is the undisputed leader in engine reprogramming adapted to ethanol.
With expertise built up over many years of experience, Shiftech offers Flex+ conversion, an advanced formula that goes beyond simple ethanol reprogramming.
This service does more than simply convert your vehicle to ethanol; it also includes a significant increase in engine power, providing an optimised and dynamic driving experience. Rely on Shiftech's expertise for a more advanced ethanol reprogramming and a result that exceeds your expectations.
Technology
How do I convert my vehicle to e85 flexfuel?
Ethanol conversion can be carried out on most petrol vehicles with indirect or direct injection engines. There are two main methods for converting your engine to run on bioethanol.
Electronic ECU reprogramming
E85 conversion involves modifying the parameters of the engine management ECU to optimise the operation of the injection and ignition systems according to the fuel used. This is the most effective and economical solution. If your vehicle is not compatible, you can turn to a conversion box.
E85 ethanol conversion kit
E85
The advantages of bioethanol conversion
Ecology
Savings
Flexibility
List
See if my car is compatible!
FAQ
OUR CUSTOMERS' MOST FREQUENTLY ASKED QUESTIONS!
Yes, converting your vehicle to bioethanol is profitable in 2026. Recent years have seen high volatility in fuel prices, including Bioethanol E85. By 2022, this fuel was costing an average of €0.74 per litre, before reaching an average price of €1.11 per litre in France in 2023, an increase of almost 50%. Since then, prices have stabilised considerably: the average price per litre of Super thanol-E85 will be 0.75 euros on 8 April 2026. At the end of March 2026, SP95-E10, the fuel most popular with the French, stood at around €1.985 per litre. This represents a saving of more than 1 euro per litre in favour of E85, even before taking into account the benefits of conversion
All Shiftech centres except Marrakech, Reunion, Belgium and Luxembourg are experts in e85 ethanol conversion. Visit Shiftech Limoges, Shiftech Paris Est and Paris Ouest, Shiftech Lyon, Shiftech Tours, Shiftech Toulouse, Shiftech Strasbourg, Shiftech Nantes, Shiftech Bordeaux, Shiftech Marseille, Shiftech Lille
FAQ
We tell you all about converting to e85 bioethanol
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