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IC Bus adds purpose-built propane school bus offering; PSI 8.8-liter propane engine and Allison transmission

Green Car Congress

liter LP propane engine for the 2015 school year. liter engine is an economic, low-speed solution that boasts diesel-like performance, high durability, reduced noise and overall wear with all the benefits of alternative fuels. bus assembly plant in Tulsa, Okla. —Gary Winemaster, chairman and CEO, PSI. 8-11 November.