To utilize pure E85 bioethanol, cars with traditional gasoline engines need to be overhauled. The specific chemical properties of E85 mean that cars require approximately 25% more of it than of regular gasoline. When installed between the injector valves and the computer, the BioETUN aux- iliary electronic system serves to process the on-board computer’s signals and keeps the injector open for longer, ensuring an adequate flow of E85 fuel.
Alcohol forms precipitates in cold temperatures (potentially below 13 degrees Celsius,) making it difficult or possibly even impossible to start the car. For perfect E85-fueled driving in all seasons, converting electronics with appropriate cold start systems become necessary. BioETUN operates with a temperature-regulated, fully automatic cold start system, allowing the car to start equally well in summer and in winter.

The BioETUN gasoline/E85 electronic converter system can be programmed from an external PC- compatible computer, with the help of the downloadable BioETUN TUNER application. As well as the general base settings, all of the parameters related to cold start are modifiable, allowing the system to be tuned to the specific car it’s used for.