ED95 Bus in Sweden running on a modified diesel engine.(courtesy www.greenfleet.info) [1].
Ethanol-powered ED95 buses were introduced in 1986 on a trial basis as the fuel for two buses in Örnsköldsvik, and by 1989 30 ethanol-operated buses were in service in Stockholm. SEKAB provided the fuel, called ED95, consists of a blend of 95% ethanol and 5% ignition improver and it is used in modified diesel engines where high compression is used to ignite the fuel.[4][11] Other countries have now this technology on trial under the auspicies of the BioEthanol for Sustainable Transport (BEST) project, which is coordinated by the city of Stockholm.[4]