hi ethanolics,
i am a moderator from a German ethanol forum and there we are discussing about the quality of the E85.
In Germany there is a norm called DIN 51625 for the E85. According to this norm our fuel must be a blend of dry ethanol (>99.9%, no water) and petrol.
The range of the ethanol part is between 70 and 80% in winter, between 75 and 90% in summer.
is there a similar regulation in France, too?

