Increase performance by up to 15%
eFlexFuel E85 conversion kits are the easiest way to turn your vehicle to flex fuel. Run high-octane E85, gas or both in any blend seamlessly.
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eFlexFuel products are not available for direct injection engines (TFSI, TSI, CGI, FSI, GDI, EcoBoost, etc.) or diesel engines.
We are launching an eFlexFuel device suitable for direct injection vehicles at the end of 2021. Join the waiting list.
500 000 000+
miles with eFlexFuel
30 000+
vehicles converted
4.7/5
rating based on over 100 reviews
Over 3,800 stations nationwide
While not all gas stations offer E85 fuel in the United States, you can find flex fuel alternatives across the country. Though eFlexFuel products allow for use of E85, it’s still safe to use gasoline from any station or to mix with E85.
E85 stations
E85 means high performance
The benefits of E85 fuel can be felt in your engine and on the road. With octane levels of 104, high-performance engines will see greater efficiency and horsepower on E85.
PerformanceHow does it work?
eFlexFuel kits are the easiest way to increase your engine power by using high-octane American E85 fuel. Once the kit is installed there's no need to adjust it or make any other changes to your vehicle.
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Easy to install
eFlexFuel is a 100% plug and play solution. Installation usually takes about 1-2 hours. Check out our installation videos, instructions or contact our experienced engineers for advice.
Read moreWhat people are saying
Driver experience
I feel the power
Mike has driven 20,000 miles on E85 with his Nissan Versa. In addition to a noticeable increase in power, Mike enjoys the freedom of choosing a suitable fuel, reduction of his carbon footprint and supporting of local farmers.
Chevrolet Silverado 2500 HD
Flex fuel solution benefits
Meet Michael and his Chevrolet Silverado 2500 HD. Michael decided to convert his pickup truck to run on ethanol. Having eFlexPlus installed on his truck, Michael not only saves money and cuts emissions, he also supports local farmers and improves the performance of his Chevrolet.
Driver experience
150,000 miles with ethanol
Tuomo, our CEO, has driven over 150,000 miles using the E85 fuel. In addition to savings on fuel costs and reduced carbon footprint, he has been getting 5% more power by using E85 high octane fuel.
Unfortunately your vehicle is not compatible
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Select make, year, model and engine to check compatibility with eFlexFuel products.