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Dimethyl Ether (DME), which is used as a propellant in spray cans, can also be used as a fuel. The Swedish government has given permission and funding to Volvo to develop engines capable of running on the alternative fuel. Volvo already has developed two generations of DME engines; the project would use third generation engines which would be installed in trucks in 2009 and 2010.

A chemical company in China is starting the production of DME, short for dimethyl ether, to use as an alternative fuel for Beijing’s diesel city buses, according to Pakistan Daily Times. DME is a clean burning alternative for diesel that can be produced from natural gas, coal, or biomass at an attractive price. While DME has generally shown to reduce emissions, it requires fairly significant changes to the engine hardware. DME is a gas at ambient pressures and temperatures, which requires