Discovering Mechanics: Louis Renault e-book (RENAULT) | Page 175
Bioethanol
Used as neat ethanol (E95, blend of 95% ethanol and 5% water)
Used as E85 (85% volume ethanol with petrol) in flex-fuel
vehicles
Used as blend smaller than 5% volume (E5) in ordinary petrol or
as its derivative ETBE
Biodiesel
Current maximum 5% in diesel blends, otherwise can only be
used in modified diesel engines
Current 5.75% EU target cannot be met with ordinary blends of
petrol and diesel
Need for separate infrastructure (pumps, storage, delivery for
E85 and biodiesel or pure plant oil)