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GM on cleaner air pledge and engine emissions effort
GM explains its two-pronged approach to cleaner air: reducing current engine pollutants and pursuing new low-pollutant power sources. It details PCV systems, exhaust controls, unleaded fuel, catalysts, and ongoing research into steam, electric, Stirling, hybrid and gas turbine options, urging maintenance and offering soon a low-cost emission control kit for older cars.
MENTIONED IN THIS ARTICLE
General Motors
Los Angeles Basin
California
California Air Resources Board