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1989: First ethanol buses

Towards the end of the 1980s, the first exhaust emission standards were presented in Europe, which were voluntarily adopted by the heavy vehicle manufacturers. Some cities started to demand the fitment of particulate filters to come to terms with pollution. Jointly with Stockholm city transport, Scania took a different route. The city’s environmental ambitions included replacing diesel with a ‘greener’ fuel. Scania developed an ethanol-fuelled engine that worked according to the diesel principle, i.e. with compression ignition, which was introduced in 1989. Scania buses with ethanol engines have operated in Stockholm and its suburbs ever since. Ethanol burns cleanly and emissions from the outset were several steps before the upcoming legislator limits. Ethanol has a major advantage in being renewable. With responsibly produced ethanol, carbon dioxide emissions can be cut by up to 90 percent compared to diesel. Scania is now into its fourth generation of ethanol engines. With Scania’s diesel combustion, the thermal efficiency is up to diesel standards, even at the current Euro 6 level. So the door is open for any customer striving to radically reduce the carbon footprint of the operation.

Corporate milestones